docs/build/html/_static/jquery-3.2.1.js

   1 /*!
   2  * jQuery JavaScript Library v3.2.1
   3  * https://jquery.com/
   4  *
   5  * Includes Sizzle.js
   6  * https://sizzlejs.com/
   7  *
   8  * Copyright JS Foundation and other contributors
   9  * Released under the MIT license
  10  * https://jquery.org/license
  11  *
  12  * Date: 2017-03-20T18:59Z
  13  */
  14 ( function( global, factory ) {
  15
  16         "use strict";
  17
  18         if ( typeof module === "object" && typeof module.exports === "object" ) {
  19
  20                 // For CommonJS and CommonJS-like environments where a proper `window`
  21                 // is present, execute the factory and get jQuery.
  22                 // For environments that do not have a `window` with a `document`
  23                 // (such as Node.js), expose a factory as module.exports.
  24                 // This accentuates the need for the creation of a real `window`.
  25                 // e.g. var jQuery = require("jquery")(window);
  26                 // See ticket #14549 for more info.
  27                 module.exports = global.document ?
  28                         factory( global, true ) :
  29                         function( w ) {
  30                                 if ( !w.document ) {
  31                                         throw new Error( "jQuery requires a window with a document" );
  32                                 }
  33                                 return factory( w );
  34                         };
  35         } else {
  36                 factory( global );
  37         }
  38
  39 // Pass this if window is not defined yet
  40 } )( typeof window !== "undefined" ? window : this, function( window, noGlobal ) {
  41
  42 // Edge <= 12 - 13+, Firefox <=18 - 45+, IE 10 - 11, Safari 5.1 - 9+, iOS 6 - 9.1
  43 // throw exceptions when non-strict code (e.g., ASP.NET 4.5) accesses strict mode
  44 // arguments.callee.caller (trac-13335). But as of jQuery 3.0 (2016), strict mode should be common
  45 // enough that all such attempts are guarded in a try block.
  46 "use strict";
  47
  48 var arr = [];
  49
  50 var document = window.document;
  51
  52 var getProto = Object.getPrototypeOf;
  53
  54 var slice = arr.slice;
  55
  56 var concat = arr.concat;
  57
  58 var push = arr.push;
  59
  60 var indexOf = arr.indexOf;
  61
  62 var class2type = {};
  63
  64 var toString = class2type.toString;
  65
  66 var hasOwn = class2type.hasOwnProperty;
  67
  68 var fnToString = hasOwn.toString;
  69
  70 var ObjectFunctionString = fnToString.call( Object );
  71
  72 var support = {};
  73
  74
  75
  76         function DOMEval( code, doc ) {
  77                 doc = doc || document;
  78
  79                 var script = doc.createElement( "script" );
  80
  81                 script.text = code;
  82                 doc.head.appendChild( script ).parentNode.removeChild( script );
  83         }
  84 /* global Symbol */
  85 // Defining this global in .eslintrc.json would create a danger of using the global
  86 // unguarded in another place, it seems safer to define global only for this module
  87
  88
  89
  90 var
  91         version = "3.2.1",
  92
  93         // Define a local copy of jQuery
  94         jQuery = function( selector, context ) {
  95
  96                 // The jQuery object is actually just the init constructor 'enhanced'
  97                 // Need init if jQuery is called (just allow error to be thrown if not included)
  98                 return new jQuery.fn.init( selector, context );
  99         },
 100
 101         // Support: Android <=4.0 only
 102         // Make sure we trim BOM and NBSP
 103         rtrim = /^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g,
 104
 105         // Matches dashed string for camelizing
 106         rmsPrefix = /^-ms-/,
 107         rdashAlpha = /-([a-z])/g,
 108
 109         // Used by jQuery.camelCase as callback to replace()
 110         fcamelCase = function( all, letter ) {
 111                 return letter.toUpperCase();
 112         };
 113
 114 jQuery.fn = jQuery.prototype = {
 115
 116         // The current version of jQuery being used
 117         jquery: version,
 118
 119         constructor: jQuery,
 120
 121         // The default length of a jQuery object is 0
 122         length: 0,
 123
 124         toArray: function() {
 125                 return slice.call( this );
 126         },
 127
 128         // Get the Nth element in the matched element set OR
 129         // Get the whole matched element set as a clean array
 130         get: function( num ) {
 131
 132                 // Return all the elements in a clean array
 133                 if ( num == null ) {
 134                         return slice.call( this );
 135                 }
 136
 137                 // Return just the one element from the set
 138                 return num < 0 ? this[ num + this.length ] : this[ num ];
 139         },
 140
 141         // Take an array of elements and push it onto the stack
 142         // (returning the new matched element set)
 143         pushStack: function( elems ) {
 144
 145                 // Build a new jQuery matched element set
 146                 var ret = jQuery.merge( this.constructor(), elems );
 147
 148                 // Add the old object onto the stack (as a reference)
 149                 ret.prevObject = this;
 150
 151                 // Return the newly-formed element set
 152                 return ret;
 153         },
 154
 155         // Execute a callback for every element in the matched set.
 156         each: function( callback ) {
 157                 return jQuery.each( this, callback );
 158         },
 159
 160         map: function( callback ) {
 161                 return this.pushStack( jQuery.map( this, function( elem, i ) {
 162                         return callback.call( elem, i, elem );
 163                 } ) );
 164         },
 165
 166         slice: function() {
 167                 return this.pushStack( slice.apply( this, arguments ) );
 168         },
 169
 170         first: function() {
 171                 return this.eq( 0 );
 172         },
 173
 174         last: function() {
 175                 return this.eq( -1 );
 176         },
 177
 178         eq: function( i ) {
 179                 var len = this.length,
 180                         j = +i + ( i < 0 ? len : 0 );
 181                 return this.pushStack( j >= 0 && j < len ? [ this[ j ] ] : [] );
 182         },
 183
 184         end: function() {
 185                 return this.prevObject || this.constructor();
 186         },
 187
 188         // For internal use only.
 189         // Behaves like an Array's method, not like a jQuery method.
 190         push: push,
 191         sort: arr.sort,
 192         splice: arr.splice
 193 };
 194
 195 jQuery.extend = jQuery.fn.extend = function() {
 196         var options, name, src, copy, copyIsArray, clone,
 197                 target = arguments[ 0 ] || {},
 198                 i = 1,
 199                 length = arguments.length,
 200                 deep = false;
 201
 202         // Handle a deep copy situation
 203         if ( typeof target === "boolean" ) {
 204                 deep = target;
 205
 206                 // Skip the boolean and the target
 207                 target = arguments[ i ] || {};
 208                 i++;
 209         }
 210
 211         // Handle case when target is a string or something (possible in deep copy)
 212         if ( typeof target !== "object" && !jQuery.isFunction( target ) ) {
 213                 target = {};
 214         }
 215
 216         // Extend jQuery itself if only one argument is passed
 217         if ( i === length ) {
 218                 target = this;
 219                 i--;
 220         }
 221
 222         for ( ; i < length; i++ ) {
 223
 224                 // Only deal with non-null/undefined values
 225                 if ( ( options = arguments[ i ] ) != null ) {
 226
 227                         // Extend the base object
 228                         for ( name in options ) {
 229                                 src = target[ name ];
 230                                 copy = options[ name ];
 231
 232                                 // Prevent never-ending loop
 233                                 if ( target === copy ) {
 234                                         continue;
 235                                 }
 236
 237                                 // Recurse if we're merging plain objects or arrays
 238                                 if ( deep && copy && ( jQuery.isPlainObject( copy ) ||
 239                                         ( copyIsArray = Array.isArray( copy ) ) ) ) {
 240
 241                                         if ( copyIsArray ) {
 242                                                 copyIsArray = false;
 243                                                 clone = src && Array.isArray( src ) ? src : [];
 244
 245                                         } else {
 246                                                 clone = src && jQuery.isPlainObject( src ) ? src : {};
 247                                         }
 248
 249                                         // Never move original objects, clone them
 250                                         target[ name ] = jQuery.extend( deep, clone, copy );
 251
 252                                 // Don't bring in undefined values
 253                                 } else if ( copy !== undefined ) {
 254                                         target[ name ] = copy;
 255                                 }
 256                         }
 257                 }
 258         }
 259
 260         // Return the modified object
 261         return target;
 262 };
 263
 264 jQuery.extend( {
 265
 266         // Unique for each copy of jQuery on the page
 267         expando: "jQuery" + ( version + Math.random() ).replace( /\D/g, "" ),
 268
 269         // Assume jQuery is ready without the ready module
 270         isReady: true,
 271
 272         error: function( msg ) {
 273                 throw new Error( msg );
 274         },
 275
 276         noop: function() {},
 277
 278         isFunction: function( obj ) {
 279                 return jQuery.type( obj ) === "function";
 280         },
 281
 282         isWindow: function( obj ) {
 283                 return obj != null && obj === obj.window;
 284         },
 285
 286         isNumeric: function( obj ) {
 287
 288                 // As of jQuery 3.0, isNumeric is limited to
 289                 // strings and numbers (primitives or objects)
 290                 // that can be coerced to finite numbers (gh-2662)
 291                 var type = jQuery.type( obj );
 292                 return ( type === "number" || type === "string" ) &&
 293
 294                         // parseFloat NaNs numeric-cast false positives ("")
 295                         // ...but misinterprets leading-number strings, particularly hex literals ("0x...")
 296                         // subtraction forces infinities to NaN
 297                         !isNaN( obj - parseFloat( obj ) );
 298         },
 299
 300         isPlainObject: function( obj ) {
 301                 var proto, Ctor;
 302
 303                 // Detect obvious negatives
 304                 // Use toString instead of jQuery.type to catch host objects
 305                 if ( !obj || toString.call( obj ) !== "[object Object]" ) {
 306                         return false;
 307                 }
 308
 309                 proto = getProto( obj );
 310
 311                 // Objects with no prototype (e.g., `Object.create( null )`) are plain
 312                 if ( !proto ) {
 313                         return true;
 314                 }
 315
 316                 // Objects with prototype are plain iff they were constructed by a global Object function
 317                 Ctor = hasOwn.call( proto, "constructor" ) && proto.constructor;
 318                 return typeof Ctor === "function" && fnToString.call( Ctor ) === ObjectFunctionString;
 319         },
 320
 321         isEmptyObject: function( obj ) {
 322
 323                 /* eslint-disable no-unused-vars */
 324                 // See https://github.com/eslint/eslint/issues/6125
 325                 var name;
 326
 327                 for ( name in obj ) {
 328                         return false;
 329                 }
 330                 return true;
 331         },
 332
 333         type: function( obj ) {
 334                 if ( obj == null ) {
 335                         return obj + "";
 336                 }
 337
 338                 // Support: Android <=2.3 only (functionish RegExp)
 339                 return typeof obj === "object" || typeof obj === "function" ?
 340                         class2type[ toString.call( obj ) ] || "object" :
 341                         typeof obj;
 342         },
 343
 344         // Evaluates a script in a global context
 345         globalEval: function( code ) {
 346                 DOMEval( code );
 347         },
 348
 349         // Convert dashed to camelCase; used by the css and data modules
 350         // Support: IE <=9 - 11, Edge 12 - 13
 351         // Microsoft forgot to hump their vendor prefix (#9572)
 352         camelCase: function( string ) {
 353                 return string.replace( rmsPrefix, "ms-" ).replace( rdashAlpha, fcamelCase );
 354         },
 355
 356         each: function( obj, callback ) {
 357                 var length, i = 0;
 358
 359                 if ( isArrayLike( obj ) ) {
 360                         length = obj.length;
 361                         for ( ; i < length; i++ ) {
 362                                 if ( callback.call( obj[ i ], i, obj[ i ] ) === false ) {
 363                                         break;
 364                                 }
 365                         }
 366                 } else {
 367                         for ( i in obj ) {
 368                                 if ( callback.call( obj[ i ], i, obj[ i ] ) === false ) {
 369                                         break;
 370                                 }
 371                         }
 372                 }
 373
 374                 return obj;
 375         },
 376
 377         // Support: Android <=4.0 only
 378         trim: function( text ) {
 379                 return text == null ?
 380                         "" :
 381                         ( text + "" ).replace( rtrim, "" );
 382         },
 383
 384         // results is for internal usage only
 385         makeArray: function( arr, results ) {
 386                 var ret = results || [];
 387
 388                 if ( arr != null ) {
 389                         if ( isArrayLike( Object( arr ) ) ) {
 390                                 jQuery.merge( ret,
 391                                         typeof arr === "string" ?
 392                                         [ arr ] : arr
 393                                 );
 394                         } else {
 395                                 push.call( ret, arr );
 396                         }
 397                 }
 398
 399                 return ret;
 400         },
 401
 402         inArray: function( elem, arr, i ) {
 403                 return arr == null ? -1 : indexOf.call( arr, elem, i );
 404         },
 405
 406         // Support: Android <=4.0 only, PhantomJS 1 only
 407         // push.apply(_, arraylike) throws on ancient WebKit
 408         merge: function( first, second ) {
 409                 var len = +second.length,
 410                         j = 0,
 411                         i = first.length;
 412
 413                 for ( ; j < len; j++ ) {
 414                         first[ i++ ] = second[ j ];
 415                 }
 416
 417                 first.length = i;
 418
 419                 return first;
 420         },
 421
 422         grep: function( elems, callback, invert ) {
 423                 var callbackInverse,
 424                         matches = [],
 425                         i = 0,
 426                         length = elems.length,
 427                         callbackExpect = !invert;
 428
 429                 // Go through the array, only saving the items
 430                 // that pass the validator function
 431                 for ( ; i < length; i++ ) {
 432                         callbackInverse = !callback( elems[ i ], i );
 433                         if ( callbackInverse !== callbackExpect ) {
 434                                 matches.push( elems[ i ] );
 435                         }
 436                 }
 437
 438                 return matches;
 439         },
 440
 441         // arg is for internal usage only
 442         map: function( elems, callback, arg ) {
 443                 var length, value,
 444                         i = 0,
 445                         ret = [];
 446
 447                 // Go through the array, translating each of the items to their new values
 448                 if ( isArrayLike( elems ) ) {
 449                         length = elems.length;
 450                         for ( ; i < length; i++ ) {
 451                                 value = callback( elems[ i ], i, arg );
 452
 453                                 if ( value != null ) {
 454                                         ret.push( value );
 455                                 }
 456                         }
 457
 458                 // Go through every key on the object,
 459                 } else {
 460                         for ( i in elems ) {
 461                                 value = callback( elems[ i ], i, arg );
 462
 463                                 if ( value != null ) {
 464                                         ret.push( value );
 465                                 }
 466                         }
 467                 }
 468
 469                 // Flatten any nested arrays
 470                 return concat.apply( [], ret );
 471         },
 472
 473         // A global GUID counter for objects
 474         guid: 1,
 475
 476         // Bind a function to a context, optionally partially applying any
 477         // arguments.
 478         proxy: function( fn, context ) {
 479                 var tmp, args, proxy;
 480
 481                 if ( typeof context === "string" ) {
 482                         tmp = fn[ context ];
 483                         context = fn;
 484                         fn = tmp;
 485                 }
 486
 487                 // Quick check to determine if target is callable, in the spec
 488                 // this throws a TypeError, but we will just return undefined.
 489                 if ( !jQuery.isFunction( fn ) ) {
 490                         return undefined;
 491                 }
 492
 493                 // Simulated bind
 494                 args = slice.call( arguments, 2 );
 495                 proxy = function() {
 496                         return fn.apply( context || this, args.concat( slice.call( arguments ) ) );
 497                 };
 498
 499                 // Set the guid of unique handler to the same of original handler, so it can be removed
 500                 proxy.guid = fn.guid = fn.guid || jQuery.guid++;
 501
 502                 return proxy;
 503         },
 504
 505         now: Date.now,
 506
 507         // jQuery.support is not used in Core but other projects attach their
 508         // properties to it so it needs to exist.
 509         support: support
 510 } );
 511
 512 if ( typeof Symbol === "function" ) {
 513         jQuery.fn[ Symbol.iterator ] = arr[ Symbol.iterator ];
 514 }
 515
 516 // Populate the class2type map
 517 jQuery.each( "Boolean Number String Function Array Date RegExp Object Error Symbol".split( " " ),
 518 function( i, name ) {
 519         class2type[ "[object " + name + "]" ] = name.toLowerCase();
 520 } );
 521
 522 function isArrayLike( obj ) {
 523
 524         // Support: real iOS 8.2 only (not reproducible in simulator)
 525         // `in` check used to prevent JIT error (gh-2145)
 526         // hasOwn isn't used here due to false negatives
 527         // regarding Nodelist length in IE
 528         var length = !!obj && "length" in obj && obj.length,
 529                 type = jQuery.type( obj );
 530
 531         if ( type === "function" || jQuery.isWindow( obj ) ) {
 532                 return false;
 533         }
 534
 535         return type === "array" || length === 0 ||
 536                 typeof length === "number" && length > 0 && ( length - 1 ) in obj;
 537 }
 538 var Sizzle =
 539 /*!
 540  * Sizzle CSS Selector Engine v2.3.3
 541  * https://sizzlejs.com/
 542  *
 543  * Copyright jQuery Foundation and other contributors
 544  * Released under the MIT license
 545  * http://jquery.org/license
 546  *
 547  * Date: 2016-08-08
 548  */
 549 (function( window ) {
 550
 551 var i,
 552         support,
 553         Expr,
 554         getText,
 555         isXML,
 556         tokenize,
 557         compile,
 558         select,
 559         outermostContext,
 560         sortInput,
 561         hasDuplicate,
 562
 563         // Local document vars
 564         setDocument,
 565         document,
 566         docElem,
 567         documentIsHTML,
 568         rbuggyQSA,
 569         rbuggyMatches,
 570         matches,
 571         contains,
 572
 573         // Instance-specific data
 574         expando = "sizzle" + 1 * new Date(),
 575         preferredDoc = window.document,
 576         dirruns = 0,
 577         done = 0,
 578         classCache = createCache(),
 579         tokenCache = createCache(),
 580         compilerCache = createCache(),
 581         sortOrder = function( a, b ) {
 582                 if ( a === b ) {
 583                         hasDuplicate = true;
 584                 }
 585                 return 0;
 586         },
 587
 588         // Instance methods
 589         hasOwn = ({}).hasOwnProperty,
 590         arr = [],
 591         pop = arr.pop,
 592         push_native = arr.push,
 593         push = arr.push,
 594         slice = arr.slice,
 595         // Use a stripped-down indexOf as it's faster than native
 596         // https://jsperf.com/thor-indexof-vs-for/5
 597         indexOf = function( list, elem ) {
 598                 var i = 0,
 599                         len = list.length;
 600                 for ( ; i < len; i++ ) {
 601                         if ( list[i] === elem ) {
 602                                 return i;
 603                         }
 604                 }
 605                 return -1;
 606         },
 607
 608         booleans = "checked|selected|async|autofocus|autoplay|controls|defer|disabled|hidden|ismap|loop|multiple|open|readonly|required|scoped",
 609
 610         // Regular expressions
 611
 612         // http://www.w3.org/TR/css3-selectors/#whitespace
 613         whitespace = "[\\x20\\t\\r\\n\\f]",
 614
 615         // http://www.w3.org/TR/CSS21/syndata.html#value-def-identifier
 616         identifier = "(?:\\\\.|[\\w-]|[^\0-\\xa0])+",
 617
 618         // Attribute selectors: http://www.w3.org/TR/selectors/#attribute-selectors
 619         attributes = "\\[" + whitespace + "*(" + identifier + ")(?:" + whitespace +
 620                 // Operator (capture 2)
 621                 "*([*^$|!~]?=)" + whitespace +
 622                 // "Attribute values must be CSS identifiers [capture 5] or strings [capture 3 or capture 4]"
 623                 "*(?:'((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\"|(" + identifier + "))|)" + whitespace +
 624                 "*\\]",
 625
 626         pseudos = ":(" + identifier + ")(?:\\((" +
 627                 // To reduce the number of selectors needing tokenize in the preFilter, prefer arguments:
 628                 // 1. quoted (capture 3; capture 4 or capture 5)
 629                 "('((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\")|" +
 630                 // 2. simple (capture 6)
 631                 "((?:\\\\.|[^\\\\()[\\]]|" + attributes + ")*)|" +
 632                 // 3. anything else (capture 2)
 633                 ".*" +
 634                 ")\\)|)",
 635
 636         // Leading and non-escaped trailing whitespace, capturing some non-whitespace characters preceding the latter
 637         rwhitespace = new RegExp( whitespace + "+", "g" ),
 638         rtrim = new RegExp( "^" + whitespace + "+|((?:^|[^\\\\])(?:\\\\.)*)" + whitespace + "+$", "g" ),
 639
 640         rcomma = new RegExp( "^" + whitespace + "*," + whitespace + "*" ),
 641         rcombinators = new RegExp( "^" + whitespace + "*([>+~]|" + whitespace + ")" + whitespace + "*" ),
 642
 643         rattributeQuotes = new RegExp( "=" + whitespace + "*([^\\]'\"]*?)" + whitespace + "*\\]", "g" ),
 644
 645         rpseudo = new RegExp( pseudos ),
 646         ridentifier = new RegExp( "^" + identifier + "$" ),
 647
 648         matchExpr = {
 649                 "ID": new RegExp( "^#(" + identifier + ")" ),
 650                 "CLASS": new RegExp( "^\\.(" + identifier + ")" ),
 651                 "TAG": new RegExp( "^(" + identifier + "|[*])" ),
 652                 "ATTR": new RegExp( "^" + attributes ),
 653                 "PSEUDO": new RegExp( "^" + pseudos ),
 654                 "CHILD": new RegExp( "^:(only|first|last|nth|nth-last)-(child|of-type)(?:\\(" + whitespace +
 655                         "*(even|odd|(([+-]|)(\\d*)n|)" + whitespace + "*(?:([+-]|)" + whitespace +
 656                         "*(\\d+)|))" + whitespace + "*\\)|)", "i" ),
 657                 "bool": new RegExp( "^(?:" + booleans + ")$", "i" ),
 658                 // For use in libraries implementing .is()
 659                 // We use this for POS matching in `select`
 660                 "needsContext": new RegExp( "^" + whitespace + "*[>+~]|:(even|odd|eq|gt|lt|nth|first|last)(?:\\(" +
 661                         whitespace + "*((?:-\\d)?\\d*)" + whitespace + "*\\)|)(?=[^-]|$)", "i" )
 662         },
 663
 664         rinputs = /^(?:input|select|textarea|button)$/i,
 665         rheader = /^h\d$/i,
 666
 667         rnative = /^[^{]+\{\s*\[native \w/,
 668
 669         // Easily-parseable/retrievable ID or TAG or CLASS selectors
 670         rquickExpr = /^(?:#([\w-]+)|(\w+)|\.([\w-]+))$/,
 671
 672         rsibling = /[+~]/,
 673
 674         // CSS escapes
 675         // http://www.w3.org/TR/CSS21/syndata.html#escaped-characters
 676         runescape = new RegExp( "\\\\([\\da-f]{1,6}" + whitespace + "?|(" + whitespace + ")|.)", "ig" ),
 677         funescape = function( _, escaped, escapedWhitespace ) {
 678                 var high = "0x" + escaped - 0x10000;
 679                 // NaN means non-codepoint
 680                 // Support: Firefox<24
 681                 // Workaround erroneous numeric interpretation of +"0x"
 682                 return high !== high || escapedWhitespace ?
 683                         escaped :
 684                         high < 0 ?
 685                                 // BMP codepoint
 686                                 String.fromCharCode( high + 0x10000 ) :
 687                                 // Supplemental Plane codepoint (surrogate pair)
 688                                 String.fromCharCode( high >> 10 | 0xD800, high & 0x3FF | 0xDC00 );
 689         },
 690
 691         // CSS string/identifier serialization
 692         // https://drafts.csswg.org/cssom/#common-serializing-idioms
 693         rcssescape = /([\0-\x1f\x7f]|^-?\d)|^-$|[^\0-\x1f\x7f-\uFFFF\w-]/g,
 694         fcssescape = function( ch, asCodePoint ) {
 695                 if ( asCodePoint ) {
 696
 697                         // U+0000 NULL becomes U+FFFD REPLACEMENT CHARACTER
 698                         if ( ch === "\0" ) {
 699                                 return "\uFFFD";
 700                         }
 701
 702                         // Control characters and (dependent upon position) numbers get escaped as code points
 703                         return ch.slice( 0, -1 ) + "\\" + ch.charCodeAt( ch.length - 1 ).toString( 16 ) + " ";
 704                 }
 705
 706                 // Other potentially-special ASCII characters get backslash-escaped
 707                 return "\\" + ch;
 708         },
 709
 710         // Used for iframes
 711         // See setDocument()
 712         // Removing the function wrapper causes a "Permission Denied"
 713         // error in IE
 714         unloadHandler = function() {
 715                 setDocument();
 716         },
 717
 718         disabledAncestor = addCombinator(
 719                 function( elem ) {
 720                         return elem.disabled === true && ("form" in elem || "label" in elem);
 721                 },
 722                 { dir: "parentNode", next: "legend" }
 723         );
 724
 725 // Optimize for push.apply( _, NodeList )
 726 try {
 727         push.apply(
 728                 (arr = slice.call( preferredDoc.childNodes )),
 729                 preferredDoc.childNodes
 730         );
 731         // Support: Android<4.0
 732         // Detect silently failing push.apply
 733         arr[ preferredDoc.childNodes.length ].nodeType;
 734 } catch ( e ) {
 735         push = { apply: arr.length ?
 736
 737                 // Leverage slice if possible
 738                 function( target, els ) {
 739                         push_native.apply( target, slice.call(els) );
 740                 } :
 741
 742                 // Support: IE<9
 743                 // Otherwise append directly
 744                 function( target, els ) {
 745                         var j = target.length,
 746                                 i = 0;
 747                         // Can't trust NodeList.length
 748                         while ( (target[j++] = els[i++]) ) {}
 749                         target.length = j - 1;
 750                 }
 751         };
 752 }
 753
 754 function Sizzle( selector, context, results, seed ) {
 755         var m, i, elem, nid, match, groups, newSelector,
 756                 newContext = context && context.ownerDocument,
 757
 758                 // nodeType defaults to 9, since context defaults to document
 759                 nodeType = context ? context.nodeType : 9;
 760
 761         results = results || [];
 762
 763         // Return early from calls with invalid selector or context
 764         if ( typeof selector !== "string" || !selector ||
 765                 nodeType !== 1 && nodeType !== 9 && nodeType !== 11 ) {
 766
 767                 return results;
 768         }
 769
 770         // Try to shortcut find operations (as opposed to filters) in HTML documents
 771         if ( !seed ) {
 772
 773                 if ( ( context ? context.ownerDocument || context : preferredDoc ) !== document ) {
 774                         setDocument( context );
 775                 }
 776                 context = context || document;
 777
 778                 if ( documentIsHTML ) {
 779
 780                         // If the selector is sufficiently simple, try using a "get*By*" DOM method
 781                         // (excepting DocumentFragment context, where the methods don't exist)
 782                         if ( nodeType !== 11 && (match = rquickExpr.exec( selector )) ) {
 783
 784                                 // ID selector
 785                                 if ( (m = match[1]) ) {
 786
 787                                         // Document context
 788                                         if ( nodeType === 9 ) {
 789                                                 if ( (elem = context.getElementById( m )) ) {
 790
 791                                                         // Support: IE, Opera, Webkit
 792                                                         // TODO: identify versions
 793                                                         // getElementById can match elements by name instead of ID
 794                                                         if ( elem.id === m ) {
 795                                                                 results.push( elem );
 796                                                                 return results;
 797                                                         }
 798                                                 } else {
 799                                                         return results;
 800                                                 }
 801
 802                                         // Element context
 803                                         } else {
 804
 805                                                 // Support: IE, Opera, Webkit
 806                                                 // TODO: identify versions
 807                                                 // getElementById can match elements by name instead of ID
 808                                                 if ( newContext && (elem = newContext.getElementById( m )) &&
 809                                                         contains( context, elem ) &&
 810                                                         elem.id === m ) {
 811
 812                                                         results.push( elem );
 813                                                         return results;
 814                                                 }
 815                                         }
 816
 817                                 // Type selector
 818                                 } else if ( match[2] ) {
 819                                         push.apply( results, context.getElementsByTagName( selector ) );
 820                                         return results;
 821
 822                                 // Class selector
 823                                 } else if ( (m = match[3]) && support.getElementsByClassName &&
 824                                         context.getElementsByClassName ) {
 825
 826                                         push.apply( results, context.getElementsByClassName( m ) );
 827                                         return results;
 828                                 }
 829                         }
 830
 831                         // Take advantage of querySelectorAll
 832                         if ( support.qsa &&
 833                                 !compilerCache[ selector + " " ] &&
 834                                 (!rbuggyQSA || !rbuggyQSA.test( selector )) ) {
 835
 836                                 if ( nodeType !== 1 ) {
 837                                         newContext = context;
 838                                         newSelector = selector;
 839
 840                                 // qSA looks outside Element context, which is not what we want
 841                                 // Thanks to Andrew Dupont for this workaround technique
 842                                 // Support: IE <=8
 843                                 // Exclude object elements
 844                                 } else if ( context.nodeName.toLowerCase() !== "object" ) {
 845
 846                                         // Capture the context ID, setting it first if necessary
 847                                         if ( (nid = context.getAttribute( "id" )) ) {
 848                                                 nid = nid.replace( rcssescape, fcssescape );
 849                                         } else {
 850                                                 context.setAttribute( "id", (nid = expando) );
 851                                         }
 852
 853                                         // Prefix every selector in the list
 854                                         groups = tokenize( selector );
 855                                         i = groups.length;
 856                                         while ( i-- ) {
 857                                                 groups[i] = "#" + nid + " " + toSelector( groups[i] );
 858                                         }
 859                                         newSelector = groups.join( "," );
 860
 861                                         // Expand context for sibling selectors
 862                                         newContext = rsibling.test( selector ) && testContext( context.parentNode ) ||
 863                                                 context;
 864                                 }
 865
 866                                 if ( newSelector ) {
 867                                         try {
 868                                                 push.apply( results,
 869                                                         newContext.querySelectorAll( newSelector )
 870                                                 );
 871                                                 return results;
 872                                         } catch ( qsaError ) {
 873                                         } finally {
 874                                                 if ( nid === expando ) {
 875                                                         context.removeAttribute( "id" );
 876                                                 }
 877                                         }
 878                                 }
 879                         }
 880                 }
 881         }
 882
 883         // All others
 884         return select( selector.replace( rtrim, "$1" ), context, results, seed );
 885 }
 886
 887 /**
 888  * Create key-value caches of limited size
 889  * @returns {function(string, object)} Returns the Object data after storing it on itself with
 890  *      property name the (space-suffixed) string and (if the cache is larger than Expr.cacheLength)
 891  *      deleting the oldest entry
 892  */
 893 function createCache() {
 894         var keys = [];
 895
 896         function cache( key, value ) {
 897                 // Use (key + " ") to avoid collision with native prototype properties (see Issue #157)
 898                 if ( keys.push( key + " " ) > Expr.cacheLength ) {
 899                         // Only keep the most recent entries
 900                         delete cache[ keys.shift() ];
 901                 }
 902                 return (cache[ key + " " ] = value);
 903         }
 904         return cache;
 905 }
 906
 907 /**
 908  * Mark a function for special use by Sizzle
 909  * @param {Function} fn The function to mark
 910  */
 911 function markFunction( fn ) {
 912         fn[ expando ] = true;
 913         return fn;
 914 }
 915
 916 /**
 917  * Support testing using an element
 918  * @param {Function} fn Passed the created element and returns a boolean result
 919  */
 920 function assert( fn ) {
 921         var el = document.createElement("fieldset");
 922
 923         try {
 924                 return !!fn( el );
 925         } catch (e) {
 926                 return false;
 927         } finally {
 928                 // Remove from its parent by default
 929                 if ( el.parentNode ) {
 930                         el.parentNode.removeChild( el );
 931                 }
 932                 // release memory in IE
 933                 el = null;
 934         }
 935 }
 936
 937 /**
 938  * Adds the same handler for all of the specified attrs
 939  * @param {String} attrs Pipe-separated list of attributes
 940  * @param {Function} handler The method that will be applied
 941  */
 942 function addHandle( attrs, handler ) {
 943         var arr = attrs.split("|"),
 944                 i = arr.length;
 945
 946         while ( i-- ) {
 947                 Expr.attrHandle[ arr[i] ] = handler;
 948         }
 949 }
 950
 951 /**
 952  * Checks document order of two siblings
 953  * @param {Element} a
 954  * @param {Element} b
 955  * @returns {Number} Returns less than 0 if a precedes b, greater than 0 if a follows b
 956  */
 957 function siblingCheck( a, b ) {
 958         var cur = b && a,
 959                 diff = cur && a.nodeType === 1 && b.nodeType === 1 &&
 960                         a.sourceIndex - b.sourceIndex;
 961
 962         // Use IE sourceIndex if available on both nodes
 963         if ( diff ) {
 964                 return diff;
 965         }
 966
 967         // Check if b follows a
 968         if ( cur ) {
 969                 while ( (cur = cur.nextSibling) ) {
 970                         if ( cur === b ) {
 971                                 return -1;
 972                         }
 973                 }
 974         }
 975
 976         return a ? 1 : -1;
 977 }
 978
 979 /**
 980  * Returns a function to use in pseudos for input types
 981  * @param {String} type
 982  */
 983 function createInputPseudo( type ) {
 984         return function( elem ) {
 985                 var name = elem.nodeName.toLowerCase();
 986                 return name === "input" && elem.type === type;
 987         };
 988 }
 989
 990 /**
 991  * Returns a function to use in pseudos for buttons
 992  * @param {String} type
 993  */
 994 function createButtonPseudo( type ) {
 995         return function( elem ) {
 996                 var name = elem.nodeName.toLowerCase();
 997                 return (name === "input" || name === "button") && elem.type === type;
 998         };
 999 }
1000
1001 /**
1002  * Returns a function to use in pseudos for :enabled/:disabled
1003  * @param {Boolean} disabled true for :disabled; false for :enabled
1004  */
1005 function createDisabledPseudo( disabled ) {
1006
1007         // Known :disabled false positives: fieldset[disabled] > legend:nth-of-type(n+2) :can-disable
1008         return function( elem ) {
1009
1010                 // Only certain elements can match :enabled or :disabled
1011                 // https://html.spec.whatwg.org/multipage/scripting.html#selector-enabled
1012                 // https://html.spec.whatwg.org/multipage/scripting.html#selector-disabled
1013                 if ( "form" in elem ) {
1014
1015                         // Check for inherited disabledness on relevant non-disabled elements:
1016                         // * listed form-associated elements in a disabled fieldset
1017                         //   https://html.spec.whatwg.org/multipage/forms.html#category-listed
1018                         //   https://html.spec.whatwg.org/multipage/forms.html#concept-fe-disabled
1019                         // * option elements in a disabled optgroup
1020                         //   https://html.spec.whatwg.org/multipage/forms.html#concept-option-disabled
1021                         // All such elements have a "form" property.
1022                         if ( elem.parentNode && elem.disabled === false ) {
1023
1024                                 // Option elements defer to a parent optgroup if present
1025                                 if ( "label" in elem ) {
1026                                         if ( "label" in elem.parentNode ) {
1027                                                 return elem.parentNode.disabled === disabled;
1028                                         } else {
1029                                                 return elem.disabled === disabled;
1030                                         }
1031                                 }
1032
1033                                 // Support: IE 6 - 11
1034                                 // Use the isDisabled shortcut property to check for disabled fieldset ancestors
1035                                 return elem.isDisabled === disabled ||
1036
1037                                         // Where there is no isDisabled, check manually
1038                                         /* jshint -W018 */
1039                                         elem.isDisabled !== !disabled &&
1040                                                 disabledAncestor( elem ) === disabled;
1041                         }
1042
1043                         return elem.disabled === disabled;
1044
1045                 // Try to winnow out elements that can't be disabled before trusting the disabled property.
1046                 // Some victims get caught in our net (label, legend, menu, track), but it shouldn't
1047                 // even exist on them, let alone have a boolean value.
1048                 } else if ( "label" in elem ) {
1049                         return elem.disabled === disabled;
1050                 }
1051
1052                 // Remaining elements are neither :enabled nor :disabled
1053                 return false;
1054         };
1055 }
1056
1057 /**
1058  * Returns a function to use in pseudos for positionals
1059  * @param {Function} fn
1060  */
1061 function createPositionalPseudo( fn ) {
1062         return markFunction(function( argument ) {
1063                 argument = +argument;
1064                 return markFunction(function( seed, matches ) {
1065                         var j,
1066                                 matchIndexes = fn( [], seed.length, argument ),
1067                                 i = matchIndexes.length;
1068
1069                         // Match elements found at the specified indexes
1070                         while ( i-- ) {
1071                                 if ( seed[ (j = matchIndexes[i]) ] ) {
1072                                         seed[j] = !(matches[j] = seed[j]);
1073                                 }
1074                         }
1075                 });
1076         });
1077 }
1078
1079 /**
1080  * Checks a node for validity as a Sizzle context
1081  * @param {Element|Object=} context
1082  * @returns {Element|Object|Boolean} The input node if acceptable, otherwise a falsy value
1083  */
1084 function testContext( context ) {
1085         return context && typeof context.getElementsByTagName !== "undefined" && context;
1086 }
1087
1088 // Expose support vars for convenience
1089 support = Sizzle.support = {};
1090
1091 /**
1092  * Detects XML nodes
1093  * @param {Element|Object} elem An element or a document
1094  * @returns {Boolean} True iff elem is a non-HTML XML node
1095  */
1096 isXML = Sizzle.isXML = function( elem ) {
1097         // documentElement is verified for cases where it doesn't yet exist
1098         // (such as loading iframes in IE - #4833)
1099         var documentElement = elem && (elem.ownerDocument || elem).documentElement;
1100         return documentElement ? documentElement.nodeName !== "HTML" : false;
1101 };
1102
1103 /**
1104  * Sets document-related variables once based on the current document
1105  * @param {Element|Object} [doc] An element or document object to use to set the document
1106  * @returns {Object} Returns the current document
1107  */
1108 setDocument = Sizzle.setDocument = function( node ) {
1109         var hasCompare, subWindow,
1110                 doc = node ? node.ownerDocument || node : preferredDoc;
1111
1112         // Return early if doc is invalid or already selected
1113         if ( doc === document || doc.nodeType !== 9 || !doc.documentElement ) {
1114                 return document;
1115         }
1116
1117         // Update global variables
1118         document = doc;
1119         docElem = document.documentElement;
1120         documentIsHTML = !isXML( document );
1121
1122         // Support: IE 9-11, Edge
1123         // Accessing iframe documents after unload throws "permission denied" errors (jQuery #13936)
1124         if ( preferredDoc !== document &&
1125                 (subWindow = document.defaultView) && subWindow.top !== subWindow ) {
1126
1127                 // Support: IE 11, Edge
1128                 if ( subWindow.addEventListener ) {
1129                         subWindow.addEventListener( "unload", unloadHandler, false );
1130
1131                 // Support: IE 9 - 10 only
1132                 } else if ( subWindow.attachEvent ) {
1133                         subWindow.attachEvent( "onunload", unloadHandler );
1134                 }
1135         }
1136
1137         /* Attributes
1138         ---------------------------------------------------------------------- */
1139
1140         // Support: IE<8
1141         // Verify that getAttribute really returns attributes and not properties
1142         // (excepting IE8 booleans)
1143         support.attributes = assert(function( el ) {
1144                 el.className = "i";
1145                 return !el.getAttribute("className");
1146         });
1147
1148         /* getElement(s)By*
1149         ---------------------------------------------------------------------- */
1150
1151         // Check if getElementsByTagName("*") returns only elements
1152         support.getElementsByTagName = assert(function( el ) {
1153                 el.appendChild( document.createComment("") );
1154                 return !el.getElementsByTagName("*").length;
1155         });
1156
1157         // Support: IE<9
1158         support.getElementsByClassName = rnative.test( document.getElementsByClassName );
1159
1160         // Support: IE<10
1161         // Check if getElementById returns elements by name
1162         // The broken getElementById methods don't pick up programmatically-set names,
1163         // so use a roundabout getElementsByName test
1164         support.getById = assert(function( el ) {
1165                 docElem.appendChild( el ).id = expando;
1166                 return !document.getElementsByName || !document.getElementsByName( expando ).length;
1167         });
1168
1169         // ID filter and find
1170         if ( support.getById ) {
1171                 Expr.filter["ID"] = function( id ) {
1172                         var attrId = id.replace( runescape, funescape );
1173                         return function( elem ) {
1174                                 return elem.getAttribute("id") === attrId;
1175                         };
1176                 };
1177                 Expr.find["ID"] = function( id, context ) {
1178                         if ( typeof context.getElementById !== "undefined" && documentIsHTML ) {
1179                                 var elem = context.getElementById( id );
1180                                 return elem ? [ elem ] : [];
1181                         }
1182                 };
1183         } else {
1184                 Expr.filter["ID"] =  function( id ) {
1185                         var attrId = id.replace( runescape, funescape );
1186                         return function( elem ) {
1187                                 var node = typeof elem.getAttributeNode !== "undefined" &&
1188                                         elem.getAttributeNode("id");
1189                                 return node && node.value === attrId;
1190                         };
1191                 };
1192
1193                 // Support: IE 6 - 7 only
1194                 // getElementById is not reliable as a find shortcut
1195                 Expr.find["ID"] = function( id, context ) {
1196                         if ( typeof context.getElementById !== "undefined" && documentIsHTML ) {
1197                                 var node, i, elems,
1198                                         elem = context.getElementById( id );
1199
1200                                 if ( elem ) {
1201
1202                                         // Verify the id attribute
1203                                         node = elem.getAttributeNode("id");
1204                                         if ( node && node.value === id ) {
1205                                                 return [ elem ];
1206                                         }
1207
1208                                         // Fall back on getElementsByName
1209                                         elems = context.getElementsByName( id );
1210                                         i = 0;
1211                                         while ( (elem = elems[i++]) ) {
1212                                                 node = elem.getAttributeNode("id");
1213                                                 if ( node && node.value === id ) {
1214                                                         return [ elem ];
1215                                                 }
1216                                         }
1217                                 }
1218
1219                                 return [];
1220                         }
1221                 };
1222         }
1223
1224         // Tag
1225         Expr.find["TAG"] = support.getElementsByTagName ?
1226                 function( tag, context ) {
1227                         if ( typeof context.getElementsByTagName !== "undefined" ) {
1228                                 return context.getElementsByTagName( tag );
1229
1230                         // DocumentFragment nodes don't have gEBTN
1231                         } else if ( support.qsa ) {
1232                                 return context.querySelectorAll( tag );
1233                         }
1234                 } :
1235
1236                 function( tag, context ) {
1237                         var elem,
1238                                 tmp = [],
1239                                 i = 0,
1240                                 // By happy coincidence, a (broken) gEBTN appears on DocumentFragment nodes too
1241                                 results = context.getElementsByTagName( tag );
1242
1243                         // Filter out possible comments
1244                         if ( tag === "*" ) {
1245                                 while ( (elem = results[i++]) ) {
1246                                         if ( elem.nodeType === 1 ) {
1247                                                 tmp.push( elem );
1248                                         }
1249                                 }
1250
1251                                 return tmp;
1252                         }
1253                         return results;
1254                 };
1255
1256         // Class
1257         Expr.find["CLASS"] = support.getElementsByClassName && function( className, context ) {
1258                 if ( typeof context.getElementsByClassName !== "undefined" && documentIsHTML ) {
1259                         return context.getElementsByClassName( className );
1260                 }
1261         };
1262
1263         /* QSA/matchesSelector
1264         ---------------------------------------------------------------------- */
1265
1266         // QSA and matchesSelector support
1267
1268         // matchesSelector(:active) reports false when true (IE9/Opera 11.5)
1269         rbuggyMatches = [];
1270
1271         // qSa(:focus) reports false when true (Chrome 21)
1272         // We allow this because of a bug in IE8/9 that throws an error
1273         // whenever `document.activeElement` is accessed on an iframe
1274         // So, we allow :focus to pass through QSA all the time to avoid the IE error
1275         // See https://bugs.jquery.com/ticket/13378
1276         rbuggyQSA = [];
1277
1278         if ( (support.qsa = rnative.test( document.querySelectorAll )) ) {
1279                 // Build QSA regex
1280                 // Regex strategy adopted from Diego Perini
1281                 assert(function( el ) {
1282                         // Select is set to empty string on purpose
1283                         // This is to test IE's treatment of not explicitly
1284                         // setting a boolean content attribute,
1285                         // since its presence should be enough
1286                         // https://bugs.jquery.com/ticket/12359
1287                         docElem.appendChild( el ).innerHTML = "<a id='" + expando + "'></a>" +
1288                                 "<select id='" + expando + "-\r\\' msallowcapture=''>" +
1289                                 "<option selected=''></option></select>";
1290
1291                         // Support: IE8, Opera 11-12.16
1292                         // Nothing should be selected when empty strings follow ^= or $= or *=
1293                         // The test attribute must be unknown in Opera but "safe" for WinRT
1294                         // https://msdn.microsoft.com/en-us/library/ie/hh465388.aspx#attribute_section
1295                         if ( el.querySelectorAll("[msallowcapture^='']").length ) {
1296                                 rbuggyQSA.push( "[*^$]=" + whitespace + "*(?:''|\"\")" );
1297                         }
1298
1299                         // Support: IE8
1300                         // Boolean attributes and "value" are not treated correctly
1301                         if ( !el.querySelectorAll("[selected]").length ) {
1302                                 rbuggyQSA.push( "\\[" + whitespace + "*(?:value|" + booleans + ")" );
1303                         }
1304
1305                         // Support: Chrome<29, Android<4.4, Safari<7.0+, iOS<7.0+, PhantomJS<1.9.8+
1306                         if ( !el.querySelectorAll( "[id~=" + expando + "-]" ).length ) {
1307                                 rbuggyQSA.push("~=");
1308                         }
1309
1310                         // Webkit/Opera - :checked should return selected option elements
1311                         // http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
1312                         // IE8 throws error here and will not see later tests
1313                         if ( !el.querySelectorAll(":checked").length ) {
1314                                 rbuggyQSA.push(":checked");
1315                         }
1316
1317                         // Support: Safari 8+, iOS 8+
1318                         // https://bugs.webkit.org/show_bug.cgi?id=136851
1319                         // In-page `selector#id sibling-combinator selector` fails
1320                         if ( !el.querySelectorAll( "a#" + expando + "+*" ).length ) {
1321                                 rbuggyQSA.push(".#.+[+~]");
1322                         }
1323                 });
1324
1325                 assert(function( el ) {
1326                         el.innerHTML = "<a href='' disabled='disabled'></a>" +
1327                                 "<select disabled='disabled'><option/></select>";
1328
1329                         // Support: Windows 8 Native Apps
1330                         // The type and name attributes are restricted during .innerHTML assignment
1331                         var input = document.createElement("input");
1332                         input.setAttribute( "type", "hidden" );
1333                         el.appendChild( input ).setAttribute( "name", "D" );
1334
1335                         // Support: IE8
1336                         // Enforce case-sensitivity of name attribute
1337                         if ( el.querySelectorAll("[name=d]").length ) {
1338                                 rbuggyQSA.push( "name" + whitespace + "*[*^$|!~]?=" );
1339                         }
1340
1341                         // FF 3.5 - :enabled/:disabled and hidden elements (hidden elements are still enabled)
1342                         // IE8 throws error here and will not see later tests
1343                         if ( el.querySelectorAll(":enabled").length !== 2 ) {
1344                                 rbuggyQSA.push( ":enabled", ":disabled" );
1345                         }
1346
1347                         // Support: IE9-11+
1348                         // IE's :disabled selector does not pick up the children of disabled fieldsets
1349                         docElem.appendChild( el ).disabled = true;
1350                         if ( el.querySelectorAll(":disabled").length !== 2 ) {
1351                                 rbuggyQSA.push( ":enabled", ":disabled" );
1352                         }
1353
1354                         // Opera 10-11 does not throw on post-comma invalid pseudos
1355                         el.querySelectorAll("*,:x");
1356                         rbuggyQSA.push(",.*:");
1357                 });
1358         }
1359
1360         if ( (support.matchesSelector = rnative.test( (matches = docElem.matches ||
1361                 docElem.webkitMatchesSelector ||
1362                 docElem.mozMatchesSelector ||
1363                 docElem.oMatchesSelector ||
1364                 docElem.msMatchesSelector) )) ) {
1365
1366                 assert(function( el ) {
1367                         // Check to see if it's possible to do matchesSelector
1368                         // on a disconnected node (IE 9)
1369                         support.disconnectedMatch = matches.call( el, "*" );
1370
1371                         // This should fail with an exception
1372                         // Gecko does not error, returns false instead
1373                         matches.call( el, "[s!='']:x" );
1374                         rbuggyMatches.push( "!=", pseudos );
1375                 });
1376         }
1377
1378         rbuggyQSA = rbuggyQSA.length && new RegExp( rbuggyQSA.join("|") );
1379         rbuggyMatches = rbuggyMatches.length && new RegExp( rbuggyMatches.join("|") );
1380
1381         /* Contains
1382         ---------------------------------------------------------------------- */
1383         hasCompare = rnative.test( docElem.compareDocumentPosition );
1384
1385         // Element contains another
1386         // Purposefully self-exclusive
1387         // As in, an element does not contain itself
1388         contains = hasCompare || rnative.test( docElem.contains ) ?
1389                 function( a, b ) {
1390                         var adown = a.nodeType === 9 ? a.documentElement : a,
1391                                 bup = b && b.parentNode;
1392                         return a === bup || !!( bup && bup.nodeType === 1 && (
1393                                 adown.contains ?
1394                                         adown.contains( bup ) :
1395                                         a.compareDocumentPosition && a.compareDocumentPosition( bup ) & 16
1396                         ));
1397                 } :
1398                 function( a, b ) {
1399                         if ( b ) {
1400                                 while ( (b = b.parentNode) ) {
1401                                         if ( b === a ) {
1402                                                 return true;
1403                                         }
1404                                 }
1405                         }
1406                         return false;
1407                 };
1408
1409         /* Sorting
1410         ---------------------------------------------------------------------- */
1411
1412         // Document order sorting
1413         sortOrder = hasCompare ?
1414         function( a, b ) {
1415
1416                 // Flag for duplicate removal
1417                 if ( a === b ) {
1418                         hasDuplicate = true;
1419                         return 0;
1420                 }
1421
1422                 // Sort on method existence if only one input has compareDocumentPosition
1423                 var compare = !a.compareDocumentPosition - !b.compareDocumentPosition;
1424                 if ( compare ) {
1425                         return compare;
1426                 }
1427
1428                 // Calculate position if both inputs belong to the same document
1429                 compare = ( a.ownerDocument || a ) === ( b.ownerDocument || b ) ?
1430                         a.compareDocumentPosition( b ) :
1431
1432                         // Otherwise we know they are disconnected
1433                         1;
1434
1435                 // Disconnected nodes
1436                 if ( compare & 1 ||
1437                         (!support.sortDetached && b.compareDocumentPosition( a ) === compare) ) {
1438
1439                         // Choose the first element that is related to our preferred document
1440                         if ( a === document || a.ownerDocument === preferredDoc && contains(preferredDoc, a) ) {
1441                                 return -1;
1442                         }
1443                         if ( b === document || b.ownerDocument === preferredDoc && contains(preferredDoc, b) ) {
1444                                 return 1;
1445                         }
1446
1447                         // Maintain original order
1448                         return sortInput ?
1449                                 ( indexOf( sortInput, a ) - indexOf( sortInput, b ) ) :
1450                                 0;
1451                 }
1452
1453                 return compare & 4 ? -1 : 1;
1454         } :
1455         function( a, b ) {
1456                 // Exit early if the nodes are identical
1457                 if ( a === b ) {
1458                         hasDuplicate = true;
1459                         return 0;
1460                 }
1461
1462                 var cur,
1463                         i = 0,
1464                         aup = a.parentNode,
1465                         bup = b.parentNode,
1466                         ap = [ a ],
1467                         bp = [ b ];
1468
1469                 // Parentless nodes are either documents or disconnected
1470                 if ( !aup || !bup ) {
1471                         return a === document ? -1 :
1472                                 b === document ? 1 :
1473                                 aup ? -1 :
1474                                 bup ? 1 :
1475                                 sortInput ?
1476                                 ( indexOf( sortInput, a ) - indexOf( sortInput, b ) ) :
1477                                 0;
1478
1479                 // If the nodes are siblings, we can do a quick check
1480                 } else if ( aup === bup ) {
1481                         return siblingCheck( a, b );
1482                 }
1483
1484                 // Otherwise we need full lists of their ancestors for comparison
1485                 cur = a;
1486                 while ( (cur = cur.parentNode) ) {
1487                         ap.unshift( cur );
1488                 }
1489                 cur = b;
1490                 while ( (cur = cur.parentNode) ) {
1491                         bp.unshift( cur );
1492                 }
1493
1494                 // Walk down the tree looking for a discrepancy
1495                 while ( ap[i] === bp[i] ) {
1496                         i++;
1497                 }
1498
1499                 return i ?
1500                         // Do a sibling check if the nodes have a common ancestor
1501                         siblingCheck( ap[i], bp[i] ) :
1502
1503                         // Otherwise nodes in our document sort first
1504                         ap[i] === preferredDoc ? -1 :
1505                         bp[i] === preferredDoc ? 1 :
1506                         0;
1507         };
1508
1509         return document;
1510 };
1511
1512 Sizzle.matches = function( expr, elements ) {
1513         return Sizzle( expr, null, null, elements );
1514 };
1515
1516 Sizzle.matchesSelector = function( elem, expr ) {
1517         // Set document vars if needed
1518         if ( ( elem.ownerDocument || elem ) !== document ) {
1519                 setDocument( elem );
1520         }
1521
1522         // Make sure that attribute selectors are quoted
1523         expr = expr.replace( rattributeQuotes, "='$1']" );
1524
1525         if ( support.matchesSelector && documentIsHTML &&
1526                 !compilerCache[ expr + " " ] &&
1527                 ( !rbuggyMatches || !rbuggyMatches.test( expr ) ) &&
1528                 ( !rbuggyQSA     || !rbuggyQSA.test( expr ) ) ) {
1529
1530                 try {
1531                         var ret = matches.call( elem, expr );
1532
1533                         // IE 9's matchesSelector returns false on disconnected nodes
1534                         if ( ret || support.disconnectedMatch ||
1535                                         // As well, disconnected nodes are said to be in a document
1536                                         // fragment in IE 9
1537                                         elem.document && elem.document.nodeType !== 11 ) {
1538                                 return ret;
1539                         }
1540                 } catch (e) {}
1541         }
1542
1543         return Sizzle( expr, document, null, [ elem ] ).length > 0;
1544 };
1545
1546 Sizzle.contains = function( context, elem ) {
1547         // Set document vars if needed
1548         if ( ( context.ownerDocument || context ) !== document ) {
1549                 setDocument( context );
1550         }
1551         return contains( context, elem );
1552 };
1553
1554 Sizzle.attr = function( elem, name ) {
1555         // Set document vars if needed
1556         if ( ( elem.ownerDocument || elem ) !== document ) {
1557                 setDocument( elem );
1558         }
1559
1560         var fn = Expr.attrHandle[ name.toLowerCase() ],
1561                 // Don't get fooled by Object.prototype properties (jQuery #13807)
1562                 val = fn && hasOwn.call( Expr.attrHandle, name.toLowerCase() ) ?
1563                         fn( elem, name, !documentIsHTML ) :
1564                         undefined;
1565
1566         return val !== undefined ?
1567                 val :
1568                 support.attributes || !documentIsHTML ?
1569                         elem.getAttribute( name ) :
1570                         (val = elem.getAttributeNode(name)) && val.specified ?
1571                                 val.value :
1572                                 null;
1573 };
1574
1575 Sizzle.escape = function( sel ) {
1576         return (sel + "").replace( rcssescape, fcssescape );
1577 };
1578
1579 Sizzle.error = function( msg ) {
1580         throw new Error( "Syntax error, unrecognized expression: " + msg );
1581 };
1582
1583 /**
1584  * Document sorting and removing duplicates
1585  * @param {ArrayLike} results
1586  */
1587 Sizzle.uniqueSort = function( results ) {
1588         var elem,
1589                 duplicates = [],
1590                 j = 0,
1591                 i = 0;
1592
1593         // Unless we *know* we can detect duplicates, assume their presence
1594         hasDuplicate = !support.detectDuplicates;
1595         sortInput = !support.sortStable && results.slice( 0 );
1596         results.sort( sortOrder );
1597
1598         if ( hasDuplicate ) {
1599                 while ( (elem = results[i++]) ) {
1600                         if ( elem === results[ i ] ) {
1601                                 j = duplicates.push( i );
1602                         }
1603                 }
1604                 while ( j-- ) {
1605                         results.splice( duplicates[ j ], 1 );
1606                 }
1607         }
1608
1609         // Clear input after sorting to release objects
1610         // See https://github.com/jquery/sizzle/pull/225
1611         sortInput = null;
1612
1613         return results;
1614 };
1615
1616 /**
1617  * Utility function for retrieving the text value of an array of DOM nodes
1618  * @param {Array|Element} elem
1619  */
1620 getText = Sizzle.getText = function( elem ) {
1621         var node,
1622                 ret = "",
1623                 i = 0,
1624                 nodeType = elem.nodeType;
1625
1626         if ( !nodeType ) {
1627                 // If no nodeType, this is expected to be an array
1628                 while ( (node = elem[i++]) ) {
1629                         // Do not traverse comment nodes
1630                         ret += getText( node );
1631                 }
1632         } else if ( nodeType === 1 || nodeType === 9 || nodeType === 11 ) {
1633                 // Use textContent for elements
1634                 // innerText usage removed for consistency of new lines (jQuery #11153)
1635                 if ( typeof elem.textContent === "string" ) {
1636                         return elem.textContent;
1637                 } else {
1638                         // Traverse its children
1639                         for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
1640                                 ret += getText( elem );
1641                         }
1642                 }
1643         } else if ( nodeType === 3 || nodeType === 4 ) {
1644                 return elem.nodeValue;
1645         }
1646         // Do not include comment or processing instruction nodes
1647
1648         return ret;
1649 };
1650
1651 Expr = Sizzle.selectors = {
1652
1653         // Can be adjusted by the user
1654         cacheLength: 50,
1655
1656         createPseudo: markFunction,
1657
1658         match: matchExpr,
1659
1660         attrHandle: {},
1661
1662         find: {},
1663
1664         relative: {
1665                 ">": { dir: "parentNode", first: true },
1666                 " ": { dir: "parentNode" },
1667                 "+": { dir: "previousSibling", first: true },
1668                 "~": { dir: "previousSibling" }
1669         },
1670
1671         preFilter: {
1672                 "ATTR": function( match ) {
1673                         match[1] = match[1].replace( runescape, funescape );
1674
1675                         // Move the given value to match[3] whether quoted or unquoted
1676                         match[3] = ( match[3] || match[4] || match[5] || "" ).replace( runescape, funescape );
1677
1678                         if ( match[2] === "~=" ) {
1679                                 match[3] = " " + match[3] + " ";
1680                         }
1681
1682                         return match.slice( 0, 4 );
1683                 },
1684
1685                 "CHILD": function( match ) {
1686                         /* matches from matchExpr["CHILD"]
1687                                 1 type (only|nth|...)
1688                                 2 what (child|of-type)
1689                                 3 argument (even|odd|\d*|\d*n([+-]\d+)?|...)
1690                                 4 xn-component of xn+y argument ([+-]?\d*n|)
1691                                 5 sign of xn-component
1692                                 6 x of xn-component
1693                                 7 sign of y-component
1694                                 8 y of y-component
1695                         */
1696                         match[1] = match[1].toLowerCase();
1697
1698                         if ( match[1].slice( 0, 3 ) === "nth" ) {
1699                                 // nth-* requires argument
1700                                 if ( !match[3] ) {
1701                                         Sizzle.error( match[0] );
1702                                 }
1703
1704                                 // numeric x and y parameters for Expr.filter.CHILD
1705                                 // remember that false/true cast respectively to 0/1
1706                                 match[4] = +( match[4] ? match[5] + (match[6] || 1) : 2 * ( match[3] === "even" || match[3] === "odd" ) );
1707                                 match[5] = +( ( match[7] + match[8] ) || match[3] === "odd" );
1708
1709                         // other types prohibit arguments
1710                         } else if ( match[3] ) {
1711                                 Sizzle.error( match[0] );
1712                         }
1713
1714                         return match;
1715                 },
1716
1717                 "PSEUDO": function( match ) {
1718                         var excess,
1719                                 unquoted = !match[6] && match[2];
1720
1721                         if ( matchExpr["CHILD"].test( match[0] ) ) {
1722                                 return null;
1723                         }
1724
1725                         // Accept quoted arguments as-is
1726                         if ( match[3] ) {
1727                                 match[2] = match[4] || match[5] || "";
1728
1729                         // Strip excess characters from unquoted arguments
1730                         } else if ( unquoted && rpseudo.test( unquoted ) &&
1731                                 // Get excess from tokenize (recursively)
1732                                 (excess = tokenize( unquoted, true )) &&
1733                                 // advance to the next closing parenthesis
1734                                 (excess = unquoted.indexOf( ")", unquoted.length - excess ) - unquoted.length) ) {
1735
1736                                 // excess is a negative index
1737                                 match[0] = match[0].slice( 0, excess );
1738                                 match[2] = unquoted.slice( 0, excess );
1739                         }
1740
1741                         // Return only captures needed by the pseudo filter method (type and argument)
1742                         return match.slice( 0, 3 );
1743                 }
1744         },
1745
1746         filter: {
1747
1748                 "TAG": function( nodeNameSelector ) {
1749                         var nodeName = nodeNameSelector.replace( runescape, funescape ).toLowerCase();
1750                         return nodeNameSelector === "*" ?
1751                                 function() { return true; } :
1752                                 function( elem ) {
1753                                         return elem.nodeName && elem.nodeName.toLowerCase() === nodeName;
1754                                 };
1755                 },
1756
1757                 "CLASS": function( className ) {
1758                         var pattern = classCache[ className + " " ];
1759
1760                         return pattern ||
1761                                 (pattern = new RegExp( "(^|" + whitespace + ")" + className + "(" + whitespace + "|$)" )) &&
1762                                 classCache( className, function( elem ) {
1763                                         return pattern.test( typeof elem.className === "string" && elem.className || typeof elem.getAttribute !== "undefined" && elem.getAttribute("class") || "" );
1764                                 });
1765                 },
1766
1767                 "ATTR": function( name, operator, check ) {
1768                         return function( elem ) {
1769                                 var result = Sizzle.attr( elem, name );
1770
1771                                 if ( result == null ) {
1772                                         return operator === "!=";
1773                                 }
1774                                 if ( !operator ) {
1775                                         return true;
1776                                 }
1777
1778                                 result += "";
1779
1780                                 return operator === "=" ? result === check :
1781                                         operator === "!=" ? result !== check :
1782                                         operator === "^=" ? check && result.indexOf( check ) === 0 :
1783                                         operator === "*=" ? check && result.indexOf( check ) > -1 :
1784                                         operator === "$=" ? check && result.slice( -check.length ) === check :
1785                                         operator === "~=" ? ( " " + result.replace( rwhitespace, " " ) + " " ).indexOf( check ) > -1 :
1786                                         operator === "|=" ? result === check || result.slice( 0, check.length + 1 ) === check + "-" :
1787                                         false;
1788                         };
1789                 },
1790
1791                 "CHILD": function( type, what, argument, first, last ) {
1792                         var simple = type.slice( 0, 3 ) !== "nth",
1793                                 forward = type.slice( -4 ) !== "last",
1794                                 ofType = what === "of-type";
1795
1796                         return first === 1 && last === 0 ?
1797
1798                                 // Shortcut for :nth-*(n)
1799                                 function( elem ) {
1800                                         return !!elem.parentNode;
1801                                 } :
1802
1803                                 function( elem, context, xml ) {
1804                                         var cache, uniqueCache, outerCache, node, nodeIndex, start,
1805                                                 dir = simple !== forward ? "nextSibling" : "previousSibling",
1806                                                 parent = elem.parentNode,
1807                                                 name = ofType && elem.nodeName.toLowerCase(),
1808                                                 useCache = !xml && !ofType,
1809                                                 diff = false;
1810
1811                                         if ( parent ) {
1812
1813                                                 // :(first|last|only)-(child|of-type)
1814                                                 if ( simple ) {
1815                                                         while ( dir ) {
1816                                                                 node = elem;
1817                                                                 while ( (node = node[ dir ]) ) {
1818                                                                         if ( ofType ?
1819                                                                                 node.nodeName.toLowerCase() === name :
1820                                                                                 node.nodeType === 1 ) {
1821
1822                                                                                 return false;
1823                                                                         }
1824                                                                 }
1825                                                                 // Reverse direction for :only-* (if we haven't yet done so)
1826                                                                 start = dir = type === "only" && !start && "nextSibling";
1827                                                         }
1828                                                         return true;
1829                                                 }
1830
1831                                                 start = [ forward ? parent.firstChild : parent.lastChild ];
1832
1833                                                 // non-xml :nth-child(...) stores cache data on `parent`
1834                                                 if ( forward && useCache ) {
1835
1836                                                         // Seek `elem` from a previously-cached index
1837
1838                                                         // ...in a gzip-friendly way
1839                                                         node = parent;
1840                                                         outerCache = node[ expando ] || (node[ expando ] = {});
1841
1842                                                         // Support: IE <9 only
1843                                                         // Defend against cloned attroperties (jQuery gh-1709)
1844                                                         uniqueCache = outerCache[ node.uniqueID ] ||
1845                                                                 (outerCache[ node.uniqueID ] = {});
1846
1847                                                         cache = uniqueCache[ type ] || [];
1848                                                         nodeIndex = cache[ 0 ] === dirruns && cache[ 1 ];
1849                                                         diff = nodeIndex && cache[ 2 ];
1850                                                         node = nodeIndex && parent.childNodes[ nodeIndex ];
1851
1852                                                         while ( (node = ++nodeIndex && node && node[ dir ] ||
1853
1854                                                                 // Fallback to seeking `elem` from the start
1855                                                                 (diff = nodeIndex = 0) || start.pop()) ) {
1856
1857                                                                 // When found, cache indexes on `parent` and break
1858                                                                 if ( node.nodeType === 1 && ++diff && node === elem ) {
1859                                                                         uniqueCache[ type ] = [ dirruns, nodeIndex, diff ];
1860                                                                         break;
1861                                                                 }
1862                                                         }
1863
1864                                                 } else {
1865                                                         // Use previously-cached element index if available
1866                                                         if ( useCache ) {
1867                                                                 // ...in a gzip-friendly way
1868                                                                 node = elem;
1869                                                                 outerCache = node[ expando ] || (node[ expando ] = {});
1870
1871                                                                 // Support: IE <9 only
1872                                                                 // Defend against cloned attroperties (jQuery gh-1709)
1873                                                                 uniqueCache = outerCache[ node.uniqueID ] ||
1874                                                                         (outerCache[ node.uniqueID ] = {});
1875
1876                                                                 cache = uniqueCache[ type ] || [];
1877                                                                 nodeIndex = cache[ 0 ] === dirruns && cache[ 1 ];
1878                                                                 diff = nodeIndex;
1879                                                         }
1880
1881                                                         // xml :nth-child(...)
1882                                                         // or :nth-last-child(...) or :nth(-last)?-of-type(...)
1883                                                         if ( diff === false ) {
1884                                                                 // Use the same loop as above to seek `elem` from the start
1885                                                                 while ( (node = ++nodeIndex && node && node[ dir ] ||
1886                                                                         (diff = nodeIndex = 0) || start.pop()) ) {
1887
1888                                                                         if ( ( ofType ?
1889                                                                                 node.nodeName.toLowerCase() === name :
1890                                                                                 node.nodeType === 1 ) &&
1891                                                                                 ++diff ) {
1892
1893                                                                                 // Cache the index of each encountered element
1894                                                                                 if ( useCache ) {
1895                                                                                         outerCache = node[ expando ] || (node[ expando ] = {});
1896
1897                                                                                         // Support: IE <9 only
1898                                                                                         // Defend against cloned attroperties (jQuery gh-1709)
1899                                                                                         uniqueCache = outerCache[ node.uniqueID ] ||
1900                                                                                                 (outerCache[ node.uniqueID ] = {});
1901
1902                                                                                         uniqueCache[ type ] = [ dirruns, diff ];
1903                                                                                 }
1904
1905                                                                                 if ( node === elem ) {
1906                                                                                         break;
1907                                                                                 }
1908                                                                         }
1909                                                                 }
1910                                                         }
1911                                                 }
1912
1913                                                 // Incorporate the offset, then check against cycle size
1914                                                 diff -= last;
1915                                                 return diff === first || ( diff % first === 0 && diff / first >= 0 );
1916                                         }
1917                                 };
1918                 },
1919
1920                 "PSEUDO": function( pseudo, argument ) {
1921                         // pseudo-class names are case-insensitive
1922                         // http://www.w3.org/TR/selectors/#pseudo-classes
1923                         // Prioritize by case sensitivity in case custom pseudos are added with uppercase letters
1924                         // Remember that setFilters inherits from pseudos
1925                         var args,
1926                                 fn = Expr.pseudos[ pseudo ] || Expr.setFilters[ pseudo.toLowerCase() ] ||
1927                                         Sizzle.error( "unsupported pseudo: " + pseudo );
1928
1929                         // The user may use createPseudo to indicate that
1930                         // arguments are needed to create the filter function
1931                         // just as Sizzle does
1932                         if ( fn[ expando ] ) {
1933                                 return fn( argument );
1934                         }
1935
1936                         // But maintain support for old signatures
1937                         if ( fn.length > 1 ) {
1938                                 args = [ pseudo, pseudo, "", argument ];
1939                                 return Expr.setFilters.hasOwnProperty( pseudo.toLowerCase() ) ?
1940                                         markFunction(function( seed, matches ) {
1941                                                 var idx,
1942                                                         matched = fn( seed, argument ),
1943                                                         i = matched.length;
1944                                                 while ( i-- ) {
1945                                                         idx = indexOf( seed, matched[i] );
1946                                                         seed[ idx ] = !( matches[ idx ] = matched[i] );
1947                                                 }
1948                                         }) :
1949                                         function( elem ) {
1950                                                 return fn( elem, 0, args );
1951                                         };
1952                         }
1953
1954                         return fn;
1955                 }
1956         },
1957
1958         pseudos: {
1959                 // Potentially complex pseudos
1960                 "not": markFunction(function( selector ) {
1961                         // Trim the selector passed to compile
1962                         // to avoid treating leading and trailing
1963                         // spaces as combinators
1964                         var input = [],
1965                                 results = [],
1966                                 matcher = compile( selector.replace( rtrim, "$1" ) );
1967
1968                         return matcher[ expando ] ?
1969                                 markFunction(function( seed, matches, context, xml ) {
1970                                         var elem,
1971                                                 unmatched = matcher( seed, null, xml, [] ),
1972                                                 i = seed.length;
1973
1974                                         // Match elements unmatched by `matcher`
1975                                         while ( i-- ) {
1976                                                 if ( (elem = unmatched[i]) ) {
1977                                                         seed[i] = !(matches[i] = elem);
1978                                                 }
1979                                         }
1980                                 }) :
1981                                 function( elem, context, xml ) {
1982                                         input[0] = elem;
1983                                         matcher( input, null, xml, results );
1984                                         // Don't keep the element (issue #299)
1985                                         input[0] = null;
1986                                         return !results.pop();
1987                                 };
1988                 }),
1989
1990                 "has": markFunction(function( selector ) {
1991                         return function( elem ) {
1992                                 return Sizzle( selector, elem ).length > 0;
1993                         };
1994                 }),
1995
1996                 "contains": markFunction(function( text ) {
1997                         text = text.replace( runescape, funescape );
1998                         return function( elem ) {
1999                                 return ( elem.textContent || elem.innerText || getText( elem ) ).indexOf( text ) > -1;
2000                         };
2001                 }),
2002
2003                 // "Whether an element is represented by a :lang() selector
2004                 // is based solely on the element's language value
2005                 // being equal to the identifier C,
2006                 // or beginning with the identifier C immediately followed by "-".
2007                 // The matching of C against the element's language value is performed case-insensitively.
2008                 // The identifier C does not have to be a valid language name."
2009                 // http://www.w3.org/TR/selectors/#lang-pseudo
2010                 "lang": markFunction( function( lang ) {
2011                         // lang value must be a valid identifier
2012                         if ( !ridentifier.test(lang || "") ) {
2013                                 Sizzle.error( "unsupported lang: " + lang );
2014                         }
2015                         lang = lang.replace( runescape, funescape ).toLowerCase();
2016                         return function( elem ) {
2017                                 var elemLang;
2018                                 do {
2019                                         if ( (elemLang = documentIsHTML ?
2020                                                 elem.lang :
2021                                                 elem.getAttribute("xml:lang") || elem.getAttribute("lang")) ) {
2022
2023                                                 elemLang = elemLang.toLowerCase();
2024                                                 return elemLang === lang || elemLang.indexOf( lang + "-" ) === 0;
2025                                         }
2026                                 } while ( (elem = elem.parentNode) && elem.nodeType === 1 );
2027                                 return false;
2028                         };
2029                 }),
2030
2031                 // Miscellaneous
2032                 "target": function( elem ) {
2033                         var hash = window.location && window.location.hash;
2034                         return hash && hash.slice( 1 ) === elem.id;
2035                 },
2036
2037                 "root": function( elem ) {
2038                         return elem === docElem;
2039                 },
2040
2041                 "focus": function( elem ) {
2042                         return elem === document.activeElement && (!document.hasFocus || document.hasFocus()) && !!(elem.type || elem.href || ~elem.tabIndex);
2043                 },
2044
2045                 // Boolean properties
2046                 "enabled": createDisabledPseudo( false ),
2047                 "disabled": createDisabledPseudo( true ),
2048
2049                 "checked": function( elem ) {
2050                         // In CSS3, :checked should return both checked and selected elements
2051                         // http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
2052                         var nodeName = elem.nodeName.toLowerCase();
2053                         return (nodeName === "input" && !!elem.checked) || (nodeName === "option" && !!elem.selected);
2054                 },
2055
2056                 "selected": function( elem ) {
2057                         // Accessing this property makes selected-by-default
2058                         // options in Safari work properly
2059                         if ( elem.parentNode ) {
2060                                 elem.parentNode.selectedIndex;
2061                         }
2062
2063                         return elem.selected === true;
2064                 },
2065
2066                 // Contents
2067                 "empty": function( elem ) {
2068                         // http://www.w3.org/TR/selectors/#empty-pseudo
2069                         // :empty is negated by element (1) or content nodes (text: 3; cdata: 4; entity ref: 5),
2070                         //   but not by others (comment: 8; processing instruction: 7; etc.)
2071                         // nodeType < 6 works because attributes (2) do not appear as children
2072                         for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
2073                                 if ( elem.nodeType < 6 ) {
2074                                         return false;
2075                                 }
2076                         }
2077                         return true;
2078                 },
2079
2080                 "parent": function( elem ) {
2081                         return !Expr.pseudos["empty"]( elem );
2082                 },
2083
2084                 // Element/input types
2085                 "header": function( elem ) {
2086                         return rheader.test( elem.nodeName );
2087                 },
2088
2089                 "input": function( elem ) {
2090                         return rinputs.test( elem.nodeName );
2091                 },
2092
2093                 "button": function( elem ) {
2094                         var name = elem.nodeName.toLowerCase();
2095                         return name === "input" && elem.type === "button" || name === "button";
2096                 },
2097
2098                 "text": function( elem ) {
2099                         var attr;
2100                         return elem.nodeName.toLowerCase() === "input" &&
2101                                 elem.type === "text" &&
2102
2103                                 // Support: IE<8
2104                                 // New HTML5 attribute values (e.g., "search") appear with elem.type === "text"
2105                                 ( (attr = elem.getAttribute("type")) == null || attr.toLowerCase() === "text" );
2106                 },
2107
2108                 // Position-in-collection
2109                 "first": createPositionalPseudo(function() {
2110                         return [ 0 ];
2111                 }),
2112
2113                 "last": createPositionalPseudo(function( matchIndexes, length ) {
2114                         return [ length - 1 ];
2115                 }),
2116
2117                 "eq": createPositionalPseudo(function( matchIndexes, length, argument ) {
2118                         return [ argument < 0 ? argument + length : argument ];
2119                 }),
2120
2121                 "even": createPositionalPseudo(function( matchIndexes, length ) {
2122                         var i = 0;
2123                         for ( ; i < length; i += 2 ) {
2124                                 matchIndexes.push( i );
2125                         }
2126                         return matchIndexes;
2127                 }),
2128
2129                 "odd": createPositionalPseudo(function( matchIndexes, length ) {
2130                         var i = 1;
2131                         for ( ; i < length; i += 2 ) {
2132                                 matchIndexes.push( i );
2133                         }
2134                         return matchIndexes;
2135                 }),
2136
2137                 "lt": createPositionalPseudo(function( matchIndexes, length, argument ) {
2138                         var i = argument < 0 ? argument + length : argument;
2139                         for ( ; --i >= 0; ) {
2140                                 matchIndexes.push( i );
2141                         }
2142                         return matchIndexes;
2143                 }),
2144
2145                 "gt": createPositionalPseudo(function( matchIndexes, length, argument ) {
2146                         var i = argument < 0 ? argument + length : argument;
2147                         for ( ; ++i < length; ) {
2148                                 matchIndexes.push( i );
2149                         }
2150                         return matchIndexes;
2151                 })
2152         }
2153 };
2154
2155 Expr.pseudos["nth"] = Expr.pseudos["eq"];
2156
2157 // Add button/input type pseudos
2158 for ( i in { radio: true, checkbox: true, file: true, password: true, image: true } ) {
2159         Expr.pseudos[ i ] = createInputPseudo( i );
2160 }
2161 for ( i in { submit: true, reset: true } ) {
2162         Expr.pseudos[ i ] = createButtonPseudo( i );
2163 }
2164
2165 // Easy API for creating new setFilters
2166 function setFilters() {}
2167 setFilters.prototype = Expr.filters = Expr.pseudos;
2168 Expr.setFilters = new setFilters();
2169
2170 tokenize = Sizzle.tokenize = function( selector, parseOnly ) {
2171         var matched, match, tokens, type,
2172                 soFar, groups, preFilters,
2173                 cached = tokenCache[ selector + " " ];
2174
2175         if ( cached ) {
2176                 return parseOnly ? 0 : cached.slice( 0 );
2177         }
2178
2179         soFar = selector;
2180         groups = [];
2181         preFilters = Expr.preFilter;
2182
2183         while ( soFar ) {
2184
2185                 // Comma and first run
2186                 if ( !matched || (match = rcomma.exec( soFar )) ) {
2187                         if ( match ) {
2188                                 // Don't consume trailing commas as valid
2189                                 soFar = soFar.slice( match[0].length ) || soFar;
2190                         }
2191                         groups.push( (tokens = []) );
2192                 }
2193
2194                 matched = false;
2195
2196                 // Combinators
2197                 if ( (match = rcombinators.exec( soFar )) ) {
2198                         matched = match.shift();
2199                         tokens.push({
2200                                 value: matched,
2201                                 // Cast descendant combinators to space
2202                                 type: match[0].replace( rtrim, " " )
2203                         });
2204                         soFar = soFar.slice( matched.length );
2205                 }
2206
2207                 // Filters
2208                 for ( type in Expr.filter ) {
2209                         if ( (match = matchExpr[ type ].exec( soFar )) && (!preFilters[ type ] ||
2210                                 (match = preFilters[ type ]( match ))) ) {
2211                                 matched = match.shift();
2212                                 tokens.push({
2213                                         value: matched,
2214                                         type: type,
2215                                         matches: match
2216                                 });
2217                                 soFar = soFar.slice( matched.length );
2218                         }
2219                 }
2220
2221                 if ( !matched ) {
2222                         break;
2223                 }
2224         }
2225
2226         // Return the length of the invalid excess
2227         // if we're just parsing
2228         // Otherwise, throw an error or return tokens
2229         return parseOnly ?
2230                 soFar.length :
2231                 soFar ?
2232                         Sizzle.error( selector ) :
2233                         // Cache the tokens
2234                         tokenCache( selector, groups ).slice( 0 );
2235 };
2236
2237 function toSelector( tokens ) {
2238         var i = 0,
2239                 len = tokens.length,
2240                 selector = "";
2241         for ( ; i < len; i++ ) {
2242                 selector += tokens[i].value;
2243         }
2244         return selector;
2245 }
2246
2247 function addCombinator( matcher, combinator, base ) {
2248         var dir = combinator.dir,
2249                 skip = combinator.next,
2250                 key = skip || dir,
2251                 checkNonElements = base && key === "parentNode",
2252                 doneName = done++;
2253
2254         return combinator.first ?
2255                 // Check against closest ancestor/preceding element
2256                 function( elem, context, xml ) {
2257                         while ( (elem = elem[ dir ]) ) {
2258                                 if ( elem.nodeType === 1 || checkNonElements ) {
2259                                         return matcher( elem, context, xml );
2260                                 }
2261                         }
2262                         return false;
2263                 } :
2264
2265                 // Check against all ancestor/preceding elements
2266                 function( elem, context, xml ) {
2267                         var oldCache, uniqueCache, outerCache,
2268                                 newCache = [ dirruns, doneName ];
2269
2270                         // We can't set arbitrary data on XML nodes, so they don't benefit from combinator caching
2271                         if ( xml ) {
2272                                 while ( (elem = elem[ dir ]) ) {
2273                                         if ( elem.nodeType === 1 || checkNonElements ) {
2274                                                 if ( matcher( elem, context, xml ) ) {
2275                                                         return true;
2276                                                 }
2277                                         }
2278                                 }
2279                         } else {
2280                                 while ( (elem = elem[ dir ]) ) {
2281                                         if ( elem.nodeType === 1 || checkNonElements ) {
2282                                                 outerCache = elem[ expando ] || (elem[ expando ] = {});
2283
2284                                                 // Support: IE <9 only
2285                                                 // Defend against cloned attroperties (jQuery gh-1709)
2286                                                 uniqueCache = outerCache[ elem.uniqueID ] || (outerCache[ elem.uniqueID ] = {});
2287
2288                                                 if ( skip && skip === elem.nodeName.toLowerCase() ) {
2289                                                         elem = elem[ dir ] || elem;
2290                                                 } else if ( (oldCache = uniqueCache[ key ]) &&
2291                                                         oldCache[ 0 ] === dirruns && oldCache[ 1 ] === doneName ) {
2292
2293                                                         // Assign to newCache so results back-propagate to previous elements
2294                                                         return (newCache[ 2 ] = oldCache[ 2 ]);
2295                                                 } else {
2296                                                         // Reuse newcache so results back-propagate to previous elements
2297                                                         uniqueCache[ key ] = newCache;
2298
2299                                                         // A match means we're done; a fail means we have to keep checking
2300                                                         if ( (newCache[ 2 ] = matcher( elem, context, xml )) ) {
2301                                                                 return true;
2302                                                         }
2303                                                 }
2304                                         }
2305                                 }
2306                         }
2307                         return false;
2308                 };
2309 }
2310
2311 function elementMatcher( matchers ) {
2312         return matchers.length > 1 ?
2313                 function( elem, context, xml ) {
2314                         var i = matchers.length;
2315                         while ( i-- ) {
2316                                 if ( !matchers[i]( elem, context, xml ) ) {
2317                                         return false;
2318                                 }
2319                         }
2320                         return true;
2321                 } :
2322                 matchers[0];
2323 }
2324
2325 function multipleContexts( selector, contexts, results ) {
2326         var i = 0,
2327                 len = contexts.length;
2328         for ( ; i < len; i++ ) {
2329                 Sizzle( selector, contexts[i], results );
2330         }
2331         return results;
2332 }
2333
2334 function condense( unmatched, map, filter, context, xml ) {
2335         var elem,
2336                 newUnmatched = [],
2337                 i = 0,
2338                 len = unmatched.length,
2339                 mapped = map != null;
2340
2341         for ( ; i < len; i++ ) {
2342                 if ( (elem = unmatched[i]) ) {
2343                         if ( !filter || filter( elem, context, xml ) ) {
2344                                 newUnmatched.push( elem );
2345                                 if ( mapped ) {
2346                                         map.push( i );
2347                                 }
2348                         }
2349                 }
2350         }
2351
2352         return newUnmatched;
2353 }
2354
2355 function setMatcher( preFilter, selector, matcher, postFilter, postFinder, postSelector ) {
2356         if ( postFilter && !postFilter[ expando ] ) {
2357                 postFilter = setMatcher( postFilter );
2358         }
2359         if ( postFinder && !postFinder[ expando ] ) {
2360                 postFinder = setMatcher( postFinder, postSelector );
2361         }
2362         return markFunction(function( seed, results, context, xml ) {
2363                 var temp, i, elem,
2364                         preMap = [],
2365                         postMap = [],
2366                         preexisting = results.length,
2367
2368                         // Get initial elements from seed or context
2369                         elems = seed || multipleContexts( selector || "*", context.nodeType ? [ context ] : context, [] ),
2370
2371                         // Prefilter to get matcher input, preserving a map for seed-results synchronization
2372                         matcherIn = preFilter && ( seed || !selector ) ?
2373                                 condense( elems, preMap, preFilter, context, xml ) :
2374                                 elems,
2375
2376                         matcherOut = matcher ?
2377                                 // If we have a postFinder, or filtered seed, or non-seed postFilter or preexisting results,
2378                                 postFinder || ( seed ? preFilter : preexisting || postFilter ) ?
2379
2380                                         // ...intermediate processing is necessary
2381                                         [] :
2382
2383                                         // ...otherwise use results directly
2384                                         results :
2385                                 matcherIn;
2386
2387                 // Find primary matches
2388                 if ( matcher ) {
2389                         matcher( matcherIn, matcherOut, context, xml );
2390                 }
2391
2392                 // Apply postFilter
2393                 if ( postFilter ) {
2394                         temp = condense( matcherOut, postMap );
2395                         postFilter( temp, [], context, xml );
2396
2397                         // Un-match failing elements by moving them back to matcherIn
2398                         i = temp.length;
2399                         while ( i-- ) {
2400                                 if ( (elem = temp[i]) ) {
2401                                         matcherOut[ postMap[i] ] = !(matcherIn[ postMap[i] ] = elem);
2402                                 }
2403                         }
2404                 }
2405
2406                 if ( seed ) {
2407                         if ( postFinder || preFilter ) {
2408                                 if ( postFinder ) {
2409                                         // Get the final matcherOut by condensing this intermediate into postFinder contexts
2410                                         temp = [];
2411                                         i = matcherOut.length;
2412                                         while ( i-- ) {
2413                                                 if ( (elem = matcherOut[i]) ) {
2414                                                         // Restore matcherIn since elem is not yet a final match
2415                                                         temp.push( (matcherIn[i] = elem) );
2416                                                 }
2417                                         }
2418                                         postFinder( null, (matcherOut = []), temp, xml );
2419                                 }
2420
2421                                 // Move matched elements from seed to results to keep them synchronized
2422                                 i = matcherOut.length;
2423                                 while ( i-- ) {
2424                                         if ( (elem = matcherOut[i]) &&
2425                                                 (temp = postFinder ? indexOf( seed, elem ) : preMap[i]) > -1 ) {
2426
2427                                                 seed[temp] = !(results[temp] = elem);
2428                                         }
2429                                 }
2430                         }
2431
2432                 // Add elements to results, through postFinder if defined
2433                 } else {
2434                         matcherOut = condense(
2435                                 matcherOut === results ?
2436                                         matcherOut.splice( preexisting, matcherOut.length ) :
2437                                         matcherOut
2438                         );
2439                         if ( postFinder ) {
2440                                 postFinder( null, results, matcherOut, xml );
2441                         } else {
2442                                 push.apply( results, matcherOut );
2443                         }
2444                 }
2445         });
2446 }
2447
2448 function matcherFromTokens( tokens ) {
2449         var checkContext, matcher, j,
2450                 len = tokens.length,
2451                 leadingRelative = Expr.relative[ tokens[0].type ],
2452                 implicitRelative = leadingRelative || Expr.relative[" "],
2453                 i = leadingRelative ? 1 : 0,
2454
2455                 // The foundational matcher ensures that elements are reachable from top-level context(s)
2456                 matchContext = addCombinator( function( elem ) {
2457                         return elem === checkContext;
2458                 }, implicitRelative, true ),
2459                 matchAnyContext = addCombinator( function( elem ) {
2460                         return indexOf( checkContext, elem ) > -1;
2461                 }, implicitRelative, true ),
2462                 matchers = [ function( elem, context, xml ) {
2463                         var ret = ( !leadingRelative && ( xml || context !== outermostContext ) ) || (
2464                                 (checkContext = context).nodeType ?
2465                                         matchContext( elem, context, xml ) :
2466                                         matchAnyContext( elem, context, xml ) );
2467                         // Avoid hanging onto element (issue #299)
2468                         checkContext = null;
2469                         return ret;
2470                 } ];
2471
2472         for ( ; i < len; i++ ) {
2473                 if ( (matcher = Expr.relative[ tokens[i].type ]) ) {
2474                         matchers = [ addCombinator(elementMatcher( matchers ), matcher) ];
2475                 } else {
2476                         matcher = Expr.filter[ tokens[i].type ].apply( null, tokens[i].matches );
2477
2478                         // Return special upon seeing a positional matcher
2479                         if ( matcher[ expando ] ) {
2480                                 // Find the next relative operator (if any) for proper handling
2481                                 j = ++i;
2482                                 for ( ; j < len; j++ ) {
2483                                         if ( Expr.relative[ tokens[j].type ] ) {
2484                                                 break;
2485                                         }
2486                                 }
2487                                 return setMatcher(
2488                                         i > 1 && elementMatcher( matchers ),
2489                                         i > 1 && toSelector(
2490                                                 // If the preceding token was a descendant combinator, insert an implicit any-element `*`
2491                                                 tokens.slice( 0, i - 1 ).concat({ value: tokens[ i - 2 ].type === " " ? "*" : "" })
2492                                         ).replace( rtrim, "$1" ),
2493                                         matcher,
2494                                         i < j && matcherFromTokens( tokens.slice( i, j ) ),
2495                                         j < len && matcherFromTokens( (tokens = tokens.slice( j )) ),
2496                                         j < len && toSelector( tokens )
2497                                 );
2498                         }
2499                         matchers.push( matcher );
2500                 }
2501         }
2502
2503         return elementMatcher( matchers );
2504 }
2505
2506 function matcherFromGroupMatchers( elementMatchers, setMatchers ) {
2507         var bySet = setMatchers.length > 0,
2508                 byElement = elementMatchers.length > 0,
2509                 superMatcher = function( seed, context, xml, results, outermost ) {
2510                         var elem, j, matcher,
2511                                 matchedCount = 0,
2512                                 i = "0",
2513                                 unmatched = seed && [],
2514                                 setMatched = [],
2515                                 contextBackup = outermostContext,
2516                                 // We must always have either seed elements or outermost context
2517                                 elems = seed || byElement && Expr.find["TAG"]( "*", outermost ),
2518                                 // Use integer dirruns iff this is the outermost matcher
2519                                 dirrunsUnique = (dirruns += contextBackup == null ? 1 : Math.random() || 0.1),
2520                                 len = elems.length;
2521
2522                         if ( outermost ) {
2523                                 outermostContext = context === document || context || outermost;
2524                         }
2525
2526                         // Add elements passing elementMatchers directly to results
2527                         // Support: IE<9, Safari
2528                         // Tolerate NodeList properties (IE: "length"; Safari: <number>) matching elements by id
2529                         for ( ; i !== len && (elem = elems[i]) != null; i++ ) {
2530                                 if ( byElement && elem ) {
2531                                         j = 0;
2532                                         if ( !context && elem.ownerDocument !== document ) {
2533                                                 setDocument( elem );
2534                                                 xml = !documentIsHTML;
2535                                         }
2536                                         while ( (matcher = elementMatchers[j++]) ) {
2537                                                 if ( matcher( elem, context || document, xml) ) {
2538                                                         results.push( elem );
2539                                                         break;
2540                                                 }
2541                                         }
2542                                         if ( outermost ) {
2543                                                 dirruns = dirrunsUnique;
2544                                         }
2545                                 }
2546
2547                                 // Track unmatched elements for set filters
2548                                 if ( bySet ) {
2549                                         // They will have gone through all possible matchers
2550                                         if ( (elem = !matcher && elem) ) {
2551                                                 matchedCount--;
2552                                         }
2553
2554                                         // Lengthen the array for every element, matched or not
2555                                         if ( seed ) {
2556                                                 unmatched.push( elem );
2557                                         }
2558                                 }
2559                         }
2560
2561                         // `i` is now the count of elements visited above, and adding it to `matchedCount`
2562                         // makes the latter nonnegative.
2563                         matchedCount += i;
2564
2565                         // Apply set filters to unmatched elements
2566                         // NOTE: This can be skipped if there are no unmatched elements (i.e., `matchedCount`
2567                         // equals `i`), unless we didn't visit _any_ elements in the above loop because we have
2568                         // no element matchers and no seed.
2569                         // Incrementing an initially-string "0" `i` allows `i` to remain a string only in that
2570                         // case, which will result in a "00" `matchedCount` that differs from `i` but is also
2571                         // numerically zero.
2572                         if ( bySet && i !== matchedCount ) {
2573                                 j = 0;
2574                                 while ( (matcher = setMatchers[j++]) ) {
2575                                         matcher( unmatched, setMatched, context, xml );
2576                                 }
2577
2578                                 if ( seed ) {
2579                                         // Reintegrate element matches to eliminate the need for sorting
2580                                         if ( matchedCount > 0 ) {
2581                                                 while ( i-- ) {
2582                                                         if ( !(unmatched[i] || setMatched[i]) ) {
2583                                                                 setMatched[i] = pop.call( results );
2584                                                         }
2585                                                 }
2586                                         }
2587
2588                                         // Discard index placeholder values to get only actual matches
2589                                         setMatched = condense( setMatched );
2590                                 }
2591
2592                                 // Add matches to results
2593                                 push.apply( results, setMatched );
2594
2595                                 // Seedless set matches succeeding multiple successful matchers stipulate sorting
2596                                 if ( outermost && !seed && setMatched.length > 0 &&
2597                                         ( matchedCount + setMatchers.length ) > 1 ) {
2598
2599                                         Sizzle.uniqueSort( results );
2600                                 }
2601                         }
2602
2603                         // Override manipulation of globals by nested matchers
2604                         if ( outermost ) {
2605                                 dirruns = dirrunsUnique;
2606                                 outermostContext = contextBackup;
2607                         }
2608
2609                         return unmatched;
2610                 };
2611
2612         return bySet ?
2613                 markFunction( superMatcher ) :
2614                 superMatcher;
2615 }
2616
2617 compile = Sizzle.compile = function( selector, match /* Internal Use Only */ ) {
2618         var i,
2619                 setMatchers = [],
2620                 elementMatchers = [],
2621                 cached = compilerCache[ selector + " " ];
2622
2623         if ( !cached ) {
2624                 // Generate a function of recursive functions that can be used to check each element
2625                 if ( !match ) {
2626                         match = tokenize( selector );
2627                 }
2628                 i = match.length;
2629                 while ( i-- ) {
2630                         cached = matcherFromTokens( match[i] );
2631                         if ( cached[ expando ] ) {
2632                                 setMatchers.push( cached );
2633                         } else {
2634                                 elementMatchers.push( cached );
2635                         }
2636                 }
2637
2638                 // Cache the compiled function
2639                 cached = compilerCache( selector, matcherFromGroupMatchers( elementMatchers, setMatchers ) );
2640
2641                 // Save selector and tokenization
2642                 cached.selector = selector;
2643         }
2644         return cached;
2645 };
2646
2647 /**
2648  * A low-level selection function that works with Sizzle's compiled
2649  *  selector functions
2650  * @param {String|Function} selector A selector or a pre-compiled
2651  *  selector function built with Sizzle.compile
2652  * @param {Element} context
2653  * @param {Array} [results]
2654  * @param {Array} [seed] A set of elements to match against
2655  */
2656 select = Sizzle.select = function( selector, context, results, seed ) {
2657         var i, tokens, token, type, find,
2658                 compiled = typeof selector === "function" && selector,
2659                 match = !seed && tokenize( (selector = compiled.selector || selector) );
2660
2661         results = results || [];
2662
2663         // Try to minimize operations if there is only one selector in the list and no seed
2664         // (the latter of which guarantees us context)
2665         if ( match.length === 1 ) {
2666
2667                 // Reduce context if the leading compound selector is an ID
2668                 tokens = match[0] = match[0].slice( 0 );
2669                 if ( tokens.length > 2 && (token = tokens[0]).type === "ID" &&
2670                                 context.nodeType === 9 && documentIsHTML && Expr.relative[ tokens[1].type ] ) {
2671
2672                         context = ( Expr.find["ID"]( token.matches[0].replace(runescape, funescape), context ) || [] )[0];
2673                         if ( !context ) {
2674                                 return results;
2675
2676                         // Precompiled matchers will still verify ancestry, so step up a level
2677                         } else if ( compiled ) {
2678                                 context = context.parentNode;
2679                         }
2680
2681                         selector = selector.slice( tokens.shift().value.length );
2682                 }
2683
2684                 // Fetch a seed set for right-to-left matching
2685                 i = matchExpr["needsContext"].test( selector ) ? 0 : tokens.length;
2686                 while ( i-- ) {
2687                         token = tokens[i];
2688
2689                         // Abort if we hit a combinator
2690                         if ( Expr.relative[ (type = token.type) ] ) {
2691                                 break;
2692                         }
2693                         if ( (find = Expr.find[ type ]) ) {
2694                                 // Search, expanding context for leading sibling combinators
2695                                 if ( (seed = find(
2696                                         token.matches[0].replace( runescape, funescape ),
2697                                         rsibling.test( tokens[0].type ) && testContext( context.parentNode ) || context
2698                                 )) ) {
2699
2700                                         // If seed is empty or no tokens remain, we can return early
2701                                         tokens.splice( i, 1 );
2702                                         selector = seed.length && toSelector( tokens );
2703                                         if ( !selector ) {
2704                                                 push.apply( results, seed );
2705                                                 return results;
2706                                         }
2707
2708                                         break;
2709                                 }
2710                         }
2711                 }
2712         }
2713
2714         // Compile and execute a filtering function if one is not provided
2715         // Provide `match` to avoid retokenization if we modified the selector above
2716         ( compiled || compile( selector, match ) )(
2717                 seed,
2718                 context,
2719                 !documentIsHTML,
2720                 results,
2721                 !context || rsibling.test( selector ) && testContext( context.parentNode ) || context
2722         );
2723         return results;
2724 };
2725
2726 // One-time assignments
2727
2728 // Sort stability
2729 support.sortStable = expando.split("").sort( sortOrder ).join("") === expando;
2730
2731 // Support: Chrome 14-35+
2732 // Always assume duplicates if they aren't passed to the comparison function
2733 support.detectDuplicates = !!hasDuplicate;
2734
2735 // Initialize against the default document
2736 setDocument();
2737
2738 // Support: Webkit<537.32 - Safari 6.0.3/Chrome 25 (fixed in Chrome 27)
2739 // Detached nodes confoundingly follow *each other*
2740 support.sortDetached = assert(function( el ) {
2741         // Should return 1, but returns 4 (following)
2742         return el.compareDocumentPosition( document.createElement("fieldset") ) & 1;
2743 });
2744
2745 // Support: IE<8
2746 // Prevent attribute/property "interpolation"
2747 // https://msdn.microsoft.com/en-us/library/ms536429%28VS.85%29.aspx
2748 if ( !assert(function( el ) {
2749         el.innerHTML = "<a href='#'></a>";
2750         return el.firstChild.getAttribute("href") === "#" ;
2751 }) ) {
2752         addHandle( "type|href|height|width", function( elem, name, isXML ) {
2753                 if ( !isXML ) {
2754                         return elem.getAttribute( name, name.toLowerCase() === "type" ? 1 : 2 );
2755                 }
2756         });
2757 }
2758
2759 // Support: IE<9
2760 // Use defaultValue in place of getAttribute("value")
2761 if ( !support.attributes || !assert(function( el ) {
2762         el.innerHTML = "<input/>";
2763         el.firstChild.setAttribute( "value", "" );
2764         return el.firstChild.getAttribute( "value" ) === "";
2765 }) ) {
2766         addHandle( "value", function( elem, name, isXML ) {
2767                 if ( !isXML && elem.nodeName.toLowerCase() === "input" ) {
2768                         return elem.defaultValue;
2769                 }
2770         });
2771 }
2772
2773 // Support: IE<9
2774 // Use getAttributeNode to fetch booleans when getAttribute lies
2775 if ( !assert(function( el ) {
2776         return el.getAttribute("disabled") == null;
2777 }) ) {
2778         addHandle( booleans, function( elem, name, isXML ) {
2779                 var val;
2780                 if ( !isXML ) {
2781                         return elem[ name ] === true ? name.toLowerCase() :
2782                                         (val = elem.getAttributeNode( name )) && val.specified ?
2783                                         val.value :
2784                                 null;
2785                 }
2786         });
2787 }
2788
2789 return Sizzle;
2790
2791 })( window );
2792
2793
2794
2795 jQuery.find = Sizzle;
2796 jQuery.expr = Sizzle.selectors;
2797
2798 // Deprecated
2799 jQuery.expr[ ":" ] = jQuery.expr.pseudos;
2800 jQuery.uniqueSort = jQuery.unique = Sizzle.uniqueSort;
2801 jQuery.text = Sizzle.getText;
2802 jQuery.isXMLDoc = Sizzle.isXML;
2803 jQuery.contains = Sizzle.contains;
2804 jQuery.escapeSelector = Sizzle.escape;
2805
2806
2807
2808
2809 var dir = function( elem, dir, until ) {
2810         var matched = [],
2811                 truncate = until !== undefined;
2812
2813         while ( ( elem = elem[ dir ] ) && elem.nodeType !== 9 ) {
2814                 if ( elem.nodeType === 1 ) {
2815                         if ( truncate && jQuery( elem ).is( until ) ) {
2816                                 break;
2817                         }
2818                         matched.push( elem );
2819                 }
2820         }
2821         return matched;
2822 };
2823
2824
2825 var siblings = function( n, elem ) {
2826         var matched = [];
2827
2828         for ( ; n; n = n.nextSibling ) {
2829                 if ( n.nodeType === 1 && n !== elem ) {
2830                         matched.push( n );
2831                 }
2832         }
2833
2834         return matched;
2835 };
2836
2837
2838 var rneedsContext = jQuery.expr.match.needsContext;
2839
2840
2841
2842 function nodeName( elem, name ) {
2843
2844   return elem.nodeName && elem.nodeName.toLowerCase() === name.toLowerCase();
2845
2846 };
2847 var rsingleTag = ( /^<([a-z][^\/\0>:\x20\t\r\n\f]*)[\x20\t\r\n\f]*\/?>(?:<\/\1>|)$/i );
2848
2849
2850
2851 var risSimple = /^.[^:#\[\.,]*$/;
2852
2853 // Implement the identical functionality for filter and not
2854 function winnow( elements, qualifier, not ) {
2855         if ( jQuery.isFunction( qualifier ) ) {
2856                 return jQuery.grep( elements, function( elem, i ) {
2857                         return !!qualifier.call( elem, i, elem ) !== not;
2858                 } );
2859         }
2860
2861         // Single element
2862         if ( qualifier.nodeType ) {
2863                 return jQuery.grep( elements, function( elem ) {
2864                         return ( elem === qualifier ) !== not;
2865                 } );
2866         }
2867
2868         // Arraylike of elements (jQuery, arguments, Array)
2869         if ( typeof qualifier !== "string" ) {
2870                 return jQuery.grep( elements, function( elem ) {
2871                         return ( indexOf.call( qualifier, elem ) > -1 ) !== not;
2872                 } );
2873         }
2874
2875         // Simple selector that can be filtered directly, removing non-Elements
2876         if ( risSimple.test( qualifier ) ) {
2877                 return jQuery.filter( qualifier, elements, not );
2878         }
2879
2880         // Complex selector, compare the two sets, removing non-Elements
2881         qualifier = jQuery.filter( qualifier, elements );
2882         return jQuery.grep( elements, function( elem ) {
2883                 return ( indexOf.call( qualifier, elem ) > -1 ) !== not && elem.nodeType === 1;
2884         } );
2885 }
2886
2887 jQuery.filter = function( expr, elems, not ) {
2888         var elem = elems[ 0 ];
2889
2890         if ( not ) {
2891                 expr = ":not(" + expr + ")";
2892         }
2893
2894         if ( elems.length === 1 && elem.nodeType === 1 ) {
2895                 return jQuery.find.matchesSelector( elem, expr ) ? [ elem ] : [];
2896         }
2897
2898         return jQuery.find.matches( expr, jQuery.grep( elems, function( elem ) {
2899                 return elem.nodeType === 1;
2900         } ) );
2901 };
2902
2903 jQuery.fn.extend( {
2904         find: function( selector ) {
2905                 var i, ret,
2906                         len = this.length,
2907                         self = this;
2908
2909                 if ( typeof selector !== "string" ) {
2910                         return this.pushStack( jQuery( selector ).filter( function() {
2911                                 for ( i = 0; i < len; i++ ) {
2912                                         if ( jQuery.contains( self[ i ], this ) ) {
2913                                                 return true;
2914                                         }
2915                                 }
2916                         } ) );
2917                 }
2918
2919                 ret = this.pushStack( [] );
2920
2921                 for ( i = 0; i < len; i++ ) {
2922                         jQuery.find( selector, self[ i ], ret );
2923                 }
2924
2925                 return len > 1 ? jQuery.uniqueSort( ret ) : ret;
2926         },
2927         filter: function( selector ) {
2928                 return this.pushStack( winnow( this, selector || [], false ) );
2929         },
2930         not: function( selector ) {
2931                 return this.pushStack( winnow( this, selector || [], true ) );
2932         },
2933         is: function( selector ) {
2934                 return !!winnow(
2935                         this,
2936
2937                         // If this is a positional/relative selector, check membership in the returned set
2938                         // so $("p:first").is("p:last") won't return true for a doc with two "p".
2939                         typeof selector === "string" && rneedsContext.test( selector ) ?
2940                                 jQuery( selector ) :
2941                                 selector || [],
2942                         false
2943                 ).length;
2944         }
2945 } );
2946
2947
2948 // Initialize a jQuery object
2949
2950
2951 // A central reference to the root jQuery(document)
2952 var rootjQuery,
2953
2954         // A simple way to check for HTML strings
2955         // Prioritize #id over <tag> to avoid XSS via location.hash (#9521)
2956         // Strict HTML recognition (#11290: must start with <)
2957         // Shortcut simple #id case for speed
2958         rquickExpr = /^(?:\s*(<[\w\W]+>)[^>]*|#([\w-]+))$/,
2959
2960         init = jQuery.fn.init = function( selector, context, root ) {
2961                 var match, elem;
2962
2963                 // HANDLE: $(""), $(null), $(undefined), $(false)
2964                 if ( !selector ) {
2965                         return this;
2966                 }
2967
2968                 // Method init() accepts an alternate rootjQuery
2969                 // so migrate can support jQuery.sub (gh-2101)
2970                 root = root || rootjQuery;
2971
2972                 // Handle HTML strings
2973                 if ( typeof selector === "string" ) {
2974                         if ( selector[ 0 ] === "<" &&
2975                                 selector[ selector.length - 1 ] === ">" &&
2976                                 selector.length >= 3 ) {
2977
2978                                 // Assume that strings that start and end with <> are HTML and skip the regex check
2979                                 match = [ null, selector, null ];
2980
2981                         } else {
2982                                 match = rquickExpr.exec( selector );
2983                         }
2984
2985                         // Match html or make sure no context is specified for #id
2986                         if ( match && ( match[ 1 ] || !context ) ) {
2987
2988                                 // HANDLE: $(html) -> $(array)
2989                                 if ( match[ 1 ] ) {
2990                                         context = context instanceof jQuery ? context[ 0 ] : context;
2991
2992                                         // Option to run scripts is true for back-compat
2993                                         // Intentionally let the error be thrown if parseHTML is not present
2994                                         jQuery.merge( this, jQuery.parseHTML(
2995                                                 match[ 1 ],
2996                                                 context && context.nodeType ? context.ownerDocument || context : document,
2997                                                 true
2998                                         ) );
2999
3000                                         // HANDLE: $(html, props)
3001                                         if ( rsingleTag.test( match[ 1 ] ) && jQuery.isPlainObject( context ) ) {
3002                                                 for ( match in context ) {
3003
3004                                                         // Properties of context are called as methods if possible
3005                                                         if ( jQuery.isFunction( this[ match ] ) ) {
3006                                                                 this[ match ]( context[ match ] );
3007
3008                                                         // ...and otherwise set as attributes
3009                                                         } else {
3010                                                                 this.attr( match, context[ match ] );
3011                                                         }
3012                                                 }
3013                                         }
3014
3015                                         return this;
3016
3017                                 // HANDLE: $(#id)
3018                                 } else {
3019                                         elem = document.getElementById( match[ 2 ] );
3020
3021                                         if ( elem ) {
3022
3023                                                 // Inject the element directly into the jQuery object
3024                                                 this[ 0 ] = elem;
3025                                                 this.length = 1;
3026                                         }
3027                                         return this;
3028                                 }
3029
3030                         // HANDLE: $(expr, $(...))
3031                         } else if ( !context || context.jquery ) {
3032                                 return ( context || root ).find( selector );
3033
3034                         // HANDLE: $(expr, context)
3035                         // (which is just equivalent to: $(context).find(expr)
3036                         } else {
3037                                 return this.constructor( context ).find( selector );
3038                         }
3039
3040                 // HANDLE: $(DOMElement)
3041                 } else if ( selector.nodeType ) {
3042                         this[ 0 ] = selector;
3043                         this.length = 1;
3044                         return this;
3045
3046                 // HANDLE: $(function)
3047                 // Shortcut for document ready
3048                 } else if ( jQuery.isFunction( selector ) ) {
3049                         return root.ready !== undefined ?
3050                                 root.ready( selector ) :
3051
3052                                 // Execute immediately if ready is not present
3053                                 selector( jQuery );
3054                 }
3055
3056                 return jQuery.makeArray( selector, this );
3057         };
3058
3059 // Give the init function the jQuery prototype for later instantiation
3060 init.prototype = jQuery.fn;
3061
3062 // Initialize central reference
3063 rootjQuery = jQuery( document );
3064
3065
3066 var rparentsprev = /^(?:parents|prev(?:Until|All))/,
3067
3068         // Methods guaranteed to produce a unique set when starting from a unique set
3069         guaranteedUnique = {
3070                 children: true,
3071                 contents: true,
3072                 next: true,
3073                 prev: true
3074         };
3075
3076 jQuery.fn.extend( {
3077         has: function( target ) {
3078                 var targets = jQuery( target, this ),
3079                         l = targets.length;
3080
3081                 return this.filter( function() {
3082                         var i = 0;
3083                         for ( ; i < l; i++ ) {
3084                                 if ( jQuery.contains( this, targets[ i ] ) ) {
3085                                         return true;
3086                                 }
3087                         }
3088                 } );
3089         },
3090
3091         closest: function( selectors, context ) {
3092                 var cur,
3093                         i = 0,
3094                         l = this.length,
3095                         matched = [],
3096                         targets = typeof selectors !== "string" && jQuery( selectors );
3097
3098                 // Positional selectors never match, since there's no _selection_ context
3099                 if ( !rneedsContext.test( selectors ) ) {
3100                         for ( ; i < l; i++ ) {
3101                                 for ( cur = this[ i ]; cur && cur !== context; cur = cur.parentNode ) {
3102
3103                                         // Always skip document fragments
3104                                         if ( cur.nodeType < 11 && ( targets ?
3105                                                 targets.index( cur ) > -1 :
3106
3107                                                 // Don't pass non-elements to Sizzle
3108                                                 cur.nodeType === 1 &&
3109                                                         jQuery.find.matchesSelector( cur, selectors ) ) ) {
3110
3111                                                 matched.push( cur );
3112                                                 break;
3113                                         }
3114                                 }
3115                         }
3116                 }
3117
3118                 return this.pushStack( matched.length > 1 ? jQuery.uniqueSort( matched ) : matched );
3119         },
3120
3121         // Determine the position of an element within the set
3122         index: function( elem ) {
3123
3124                 // No argument, return index in parent
3125                 if ( !elem ) {
3126                         return ( this[ 0 ] && this[ 0 ].parentNode ) ? this.first().prevAll().length : -1;
3127                 }
3128
3129                 // Index in selector
3130                 if ( typeof elem === "string" ) {
3131                         return indexOf.call( jQuery( elem ), this[ 0 ] );
3132                 }
3133
3134                 // Locate the position of the desired element
3135                 return indexOf.call( this,
3136
3137                         // If it receives a jQuery object, the first element is used
3138                         elem.jquery ? elem[ 0 ] : elem
3139                 );
3140         },
3141
3142         add: function( selector, context ) {
3143                 return this.pushStack(
3144                         jQuery.uniqueSort(
3145                                 jQuery.merge( this.get(), jQuery( selector, context ) )
3146                         )
3147                 );
3148         },
3149
3150         addBack: function( selector ) {
3151                 return this.add( selector == null ?
3152                         this.prevObject : this.prevObject.filter( selector )
3153                 );
3154         }
3155 } );
3156
3157 function sibling( cur, dir ) {
3158         while ( ( cur = cur[ dir ] ) && cur.nodeType !== 1 ) {}
3159         return cur;
3160 }
3161
3162 jQuery.each( {
3163         parent: function( elem ) {
3164                 var parent = elem.parentNode;
3165                 return parent && parent.nodeType !== 11 ? parent : null;
3166         },
3167         parents: function( elem ) {
3168                 return dir( elem, "parentNode" );
3169         },
3170         parentsUntil: function( elem, i, until ) {
3171                 return dir( elem, "parentNode", until );
3172         },
3173         next: function( elem ) {
3174                 return sibling( elem, "nextSibling" );
3175         },
3176         prev: function( elem ) {
3177                 return sibling( elem, "previousSibling" );
3178         },
3179         nextAll: function( elem ) {
3180                 return dir( elem, "nextSibling" );
3181         },
3182         prevAll: function( elem ) {
3183                 return dir( elem, "previousSibling" );
3184         },
3185         nextUntil: function( elem, i, until ) {
3186                 return dir( elem, "nextSibling", until );
3187         },
3188         prevUntil: function( elem, i, until ) {
3189                 return dir( elem, "previousSibling", until );
3190         },
3191         siblings: function( elem ) {
3192                 return siblings( ( elem.parentNode || {} ).firstChild, elem );
3193         },
3194         children: function( elem ) {
3195                 return siblings( elem.firstChild );
3196         },
3197         contents: function( elem ) {
3198         if ( nodeName( elem, "iframe" ) ) {
3199             return elem.contentDocument;
3200         }
3201
3202         // Support: IE 9 - 11 only, iOS 7 only, Android Browser <=4.3 only
3203         // Treat the template element as a regular one in browsers that
3204         // don't support it.
3205         if ( nodeName( elem, "template" ) ) {
3206             elem = elem.content || elem;
3207         }
3208
3209         return jQuery.merge( [], elem.childNodes );
3210         }
3211 }, function( name, fn ) {
3212         jQuery.fn[ name ] = function( until, selector ) {
3213                 var matched = jQuery.map( this, fn, until );
3214
3215                 if ( name.slice( -5 ) !== "Until" ) {
3216                         selector = until;
3217                 }
3218
3219                 if ( selector && typeof selector === "string" ) {
3220                         matched = jQuery.filter( selector, matched );
3221                 }
3222
3223                 if ( this.length > 1 ) {
3224
3225                         // Remove duplicates
3226                         if ( !guaranteedUnique[ name ] ) {
3227                                 jQuery.uniqueSort( matched );
3228                         }
3229
3230                         // Reverse order for parents* and prev-derivatives
3231                         if ( rparentsprev.test( name ) ) {
3232                                 matched.reverse();
3233                         }
3234                 }
3235
3236                 return this.pushStack( matched );
3237         };
3238 } );
3239 var rnothtmlwhite = ( /[^\x20\t\r\n\f]+/g );
3240
3241
3242
3243 // Convert String-formatted options into Object-formatted ones
3244 function createOptions( options ) {
3245         var object = {};
3246         jQuery.each( options.match( rnothtmlwhite ) || [], function( _, flag ) {
3247                 object[ flag ] = true;
3248         } );
3249         return object;
3250 }
3251
3252 /*
3253  * Create a callback list using the following parameters:
3254  *
3255  *      options: an optional list of space-separated options that will change how
3256  *                      the callback list behaves or a more traditional option object
3257  *
3258  * By default a callback list will act like an event callback list and can be
3259  * "fired" multiple times.
3260  *
3261  * Possible options:
3262  *
3263  *      once:                   will ensure the callback list can only be fired once (like a Deferred)
3264  *
3265  *      memory:                 will keep track of previous values and will call any callback added
3266  *                                      after the list has been fired right away with the latest "memorized"
3267  *                                      values (like a Deferred)
3268  *
3269  *      unique:                 will ensure a callback can only be added once (no duplicate in the list)
3270  *
3271  *      stopOnFalse:    interrupt callings when a callback returns false
3272  *
3273  */
3274 jQuery.Callbacks = function( options ) {
3275
3276         // Convert options from String-formatted to Object-formatted if needed
3277         // (we check in cache first)
3278         options = typeof options === "string" ?
3279                 createOptions( options ) :
3280                 jQuery.extend( {}, options );
3281
3282         var // Flag to know if list is currently firing
3283                 firing,
3284
3285                 // Last fire value for non-forgettable lists
3286                 memory,
3287
3288                 // Flag to know if list was already fired
3289                 fired,
3290
3291                 // Flag to prevent firing
3292                 locked,
3293
3294                 // Actual callback list
3295                 list = [],
3296
3297                 // Queue of execution data for repeatable lists
3298                 queue = [],
3299
3300                 // Index of currently firing callback (modified by add/remove as needed)
3301                 firingIndex = -1,
3302
3303                 // Fire callbacks
3304                 fire = function() {
3305
3306                         // Enforce single-firing
3307                         locked = locked || options.once;
3308
3309                         // Execute callbacks for all pending executions,
3310                         // respecting firingIndex overrides and runtime changes
3311                         fired = firing = true;
3312                         for ( ; queue.length; firingIndex = -1 ) {
3313                                 memory = queue.shift();
3314                                 while ( ++firingIndex < list.length ) {
3315
3316                                         // Run callback and check for early termination
3317                                         if ( list[ firingIndex ].apply( memory[ 0 ], memory[ 1 ] ) === false &&
3318                                                 options.stopOnFalse ) {
3319
3320                                                 // Jump to end and forget the data so .add doesn't re-fire
3321                                                 firingIndex = list.length;
3322                                                 memory = false;
3323                                         }
3324                                 }
3325                         }
3326
3327                         // Forget the data if we're done with it
3328                         if ( !options.memory ) {
3329                                 memory = false;
3330                         }
3331
3332                         firing = false;
3333
3334                         // Clean up if we're done firing for good
3335                         if ( locked ) {
3336
3337                                 // Keep an empty list if we have data for future add calls
3338                                 if ( memory ) {
3339                                         list = [];
3340
3341                                 // Otherwise, this object is spent
3342                                 } else {
3343                                         list = "";
3344                                 }
3345                         }
3346                 },
3347
3348                 // Actual Callbacks object
3349                 self = {
3350
3351                         // Add a callback or a collection of callbacks to the list
3352                         add: function() {
3353                                 if ( list ) {
3354
3355                                         // If we have memory from a past run, we should fire after adding
3356                                         if ( memory && !firing ) {
3357                                                 firingIndex = list.length - 1;
3358                                                 queue.push( memory );
3359                                         }
3360
3361                                         ( function add( args ) {
3362                                                 jQuery.each( args, function( _, arg ) {
3363                                                         if ( jQuery.isFunction( arg ) ) {
3364                                                                 if ( !options.unique || !self.has( arg ) ) {
3365                                                                         list.push( arg );
3366                                                                 }
3367                                                         } else if ( arg && arg.length && jQuery.type( arg ) !== "string" ) {
3368
3369                                                                 // Inspect recursively
3370                                                                 add( arg );
3371                                                         }
3372                                                 } );
3373                                         } )( arguments );
3374
3375                                         if ( memory && !firing ) {
3376                                                 fire();
3377                                         }
3378                                 }
3379                                 return this;
3380                         },
3381
3382                         // Remove a callback from the list
3383                         remove: function() {
3384                                 jQuery.each( arguments, function( _, arg ) {
3385                                         var index;
3386                                         while ( ( index = jQuery.inArray( arg, list, index ) ) > -1 ) {
3387                                                 list.splice( index, 1 );
3388
3389                                                 // Handle firing indexes
3390                                                 if ( index <= firingIndex ) {
3391                                                         firingIndex--;
3392                                                 }
3393                                         }
3394                                 } );
3395                                 return this;
3396                         },
3397
3398                         // Check if a given callback is in the list.
3399                         // If no argument is given, return whether or not list has callbacks attached.
3400                         has: function( fn ) {
3401                                 return fn ?
3402                                         jQuery.inArray( fn, list ) > -1 :
3403                                         list.length > 0;
3404                         },
3405
3406                         // Remove all callbacks from the list
3407                         empty: function() {
3408                                 if ( list ) {
3409                                         list = [];
3410                                 }
3411                                 return this;
3412                         },
3413
3414                         // Disable .fire and .add
3415                         // Abort any current/pending executions
3416                         // Clear all callbacks and values
3417                         disable: function() {
3418                                 locked = queue = [];
3419                                 list = memory = "";
3420                                 return this;
3421                         },
3422                         disabled: function() {
3423                                 return !list;
3424                         },
3425
3426                         // Disable .fire
3427                         // Also disable .add unless we have memory (since it would have no effect)
3428                         // Abort any pending executions
3429                         lock: function() {
3430                                 locked = queue = [];
3431                                 if ( !memory && !firing ) {
3432                                         list = memory = "";
3433                                 }
3434                                 return this;
3435                         },
3436                         locked: function() {
3437                                 return !!locked;
3438                         },
3439
3440                         // Call all callbacks with the given context and arguments
3441                         fireWith: function( context, args ) {
3442                                 if ( !locked ) {
3443                                         args = args || [];
3444                                         args = [ context, args.slice ? args.slice() : args ];
3445                                         queue.push( args );
3446                                         if ( !firing ) {
3447                                                 fire();
3448                                         }
3449                                 }
3450                                 return this;
3451                         },
3452
3453                         // Call all the callbacks with the given arguments
3454                         fire: function() {
3455                                 self.fireWith( this, arguments );
3456                                 return this;
3457                         },
3458
3459                         // To know if the callbacks have already been called at least once
3460                         fired: function() {
3461                                 return !!fired;
3462                         }
3463                 };
3464
3465         return self;
3466 };
3467
3468
3469 function Identity( v ) {
3470         return v;
3471 }
3472 function Thrower( ex ) {
3473         throw ex;
3474 }
3475
3476 function adoptValue( value, resolve, reject, noValue ) {
3477         var method;
3478
3479         try {
3480
3481                 // Check for promise aspect first to privilege synchronous behavior
3482                 if ( value && jQuery.isFunction( ( method = value.promise ) ) ) {
3483                         method.call( value ).done( resolve ).fail( reject );
3484
3485                 // Other thenables
3486                 } else if ( value && jQuery.isFunction( ( method = value.then ) ) ) {
3487                         method.call( value, resolve, reject );
3488
3489                 // Other non-thenables
3490                 } else {
3491
3492                         // Control `resolve` arguments by letting Array#slice cast boolean `noValue` to integer:
3493                         // * false: [ value ].slice( 0 ) => resolve( value )
3494                         // * true: [ value ].slice( 1 ) => resolve()
3495                         resolve.apply( undefined, [ value ].slice( noValue ) );
3496                 }
3497
3498         // For Promises/A+, convert exceptions into rejections
3499         // Since jQuery.when doesn't unwrap thenables, we can skip the extra checks appearing in
3500         // Deferred#then to conditionally suppress rejection.
3501         } catch ( value ) {
3502
3503                 // Support: Android 4.0 only
3504                 // Strict mode functions invoked without .call/.apply get global-object context
3505                 reject.apply( undefined, [ value ] );
3506         }
3507 }
3508
3509 jQuery.extend( {
3510
3511         Deferred: function( func ) {
3512                 var tuples = [
3513
3514                                 // action, add listener, callbacks,
3515                                 // ... .then handlers, argument index, [final state]
3516                                 [ "notify", "progress", jQuery.Callbacks( "memory" ),
3517                                         jQuery.Callbacks( "memory" ), 2 ],
3518                                 [ "resolve", "done", jQuery.Callbacks( "once memory" ),
3519                                         jQuery.Callbacks( "once memory" ), 0, "resolved" ],
3520                                 [ "reject", "fail", jQuery.Callbacks( "once memory" ),
3521                                         jQuery.Callbacks( "once memory" ), 1, "rejected" ]
3522                         ],
3523                         state = "pending",
3524                         promise = {
3525                                 state: function() {
3526                                         return state;
3527                                 },
3528                                 always: function() {
3529                                         deferred.done( arguments ).fail( arguments );
3530                                         return this;
3531                                 },
3532                                 "catch": function( fn ) {
3533                                         return promise.then( null, fn );
3534                                 },
3535
3536                                 // Keep pipe for back-compat
3537                                 pipe: function( /* fnDone, fnFail, fnProgress */ ) {
3538                                         var fns = arguments;
3539
3540                                         return jQuery.Deferred( function( newDefer ) {
3541                                                 jQuery.each( tuples, function( i, tuple ) {
3542
3543                                                         // Map tuples (progress, done, fail) to arguments (done, fail, progress)
3544                                                         var fn = jQuery.isFunction( fns[ tuple[ 4 ] ] ) && fns[ tuple[ 4 ] ];
3545
3546                                                         // deferred.progress(function() { bind to newDefer or newDefer.notify })
3547                                                         // deferred.done(function() { bind to newDefer or newDefer.resolve })
3548                                                         // deferred.fail(function() { bind to newDefer or newDefer.reject })
3549                                                         deferred[ tuple[ 1 ] ]( function() {
3550                                                                 var returned = fn && fn.apply( this, arguments );
3551                                                                 if ( returned && jQuery.isFunction( returned.promise ) ) {
3552                                                                         returned.promise()
3553                                                                                 .progress( newDefer.notify )
3554                                                                                 .done( newDefer.resolve )
3555                                                                                 .fail( newDefer.reject );
3556                                                                 } else {
3557                                                                         newDefer[ tuple[ 0 ] + "With" ](
3558                                                                                 this,
3559                                                                                 fn ? [ returned ] : arguments
3560                                                                         );
3561                                                                 }
3562                                                         } );
3563                                                 } );
3564                                                 fns = null;
3565                                         } ).promise();
3566                                 },
3567                                 then: function( onFulfilled, onRejected, onProgress ) {
3568                                         var maxDepth = 0;
3569                                         function resolve( depth, deferred, handler, special ) {
3570                                                 return function() {
3571                                                         var that = this,
3572                                                                 args = arguments,
3573                                                                 mightThrow = function() {
3574                                                                         var returned, then;
3575
3576                                                                         // Support: Promises/A+ section 2.3.3.3.3
3577                                                                         // https://promisesaplus.com/#point-59
3578                                                                         // Ignore double-resolution attempts
3579                                                                         if ( depth < maxDepth ) {
3580                                                                                 return;
3581                                                                         }
3582
3583                                                                         returned = handler.apply( that, args );
3584
3585                                                                         // Support: Promises/A+ section 2.3.1
3586                                                                         // https://promisesaplus.com/#point-48
3587                                                                         if ( returned === deferred.promise() ) {
3588                                                                                 throw new TypeError( "Thenable self-resolution" );
3589                                                                         }
3590
3591                                                                         // Support: Promises/A+ sections 2.3.3.1, 3.5
3592                                                                         // https://promisesaplus.com/#point-54
3593                                                                         // https://promisesaplus.com/#point-75
3594                                                                         // Retrieve `then` only once
3595                                                                         then = returned &&
3596
3597                                                                                 // Support: Promises/A+ section 2.3.4
3598                                                                                 // https://promisesaplus.com/#point-64
3599                                                                                 // Only check objects and functions for thenability
3600                                                                                 ( typeof returned === "object" ||
3601                                                                                         typeof returned === "function" ) &&
3602                                                                                 returned.then;
3603
3604                                                                         // Handle a returned thenable
3605                                                                         if ( jQuery.isFunction( then ) ) {
3606
3607                                                                                 // Special processors (notify) just wait for resolution
3608                                                                                 if ( special ) {
3609                                                                                         then.call(
3610                                                                                                 returned,
3611                                                                                                 resolve( maxDepth, deferred, Identity, special ),
3612                                                                                                 resolve( maxDepth, deferred, Thrower, special )
3613                                                                                         );
3614
3615                                                                                 // Normal processors (resolve) also hook into progress
3616                                                                                 } else {
3617
3618                                                                                         // ...and disregard older resolution values
3619                                                                                         maxDepth++;
3620
3621                                                                                         then.call(
3622                                                                                                 returned,
3623                                                                                                 resolve( maxDepth, deferred, Identity, special ),
3624                                                                                                 resolve( maxDepth, deferred, Thrower, special ),
3625                                                                                                 resolve( maxDepth, deferred, Identity,
3626                                                                                                         deferred.notifyWith )
3627                                                                                         );
3628                                                                                 }
3629
3630                                                                         // Handle all other returned values
3631                                                                         } else {
3632
3633                                                                                 // Only substitute handlers pass on context
3634                                                                                 // and multiple values (non-spec behavior)
3635                                                                                 if ( handler !== Identity ) {
3636                                                                                         that = undefined;
3637                                                                                         args = [ returned ];
3638                                                                                 }
3639
3640                                                                                 // Process the value(s)
3641                                                                                 // Default process is resolve
3642                                                                                 ( special || deferred.resolveWith )( that, args );
3643                                                                         }
3644                                                                 },
3645
3646                                                                 // Only normal processors (resolve) catch and reject exceptions
3647                                                                 process = special ?
3648                                                                         mightThrow :
3649                                                                         function() {
3650                                                                                 try {
3651                                                                                         mightThrow();
3652                                                                                 } catch ( e ) {
3653
3654                                                                                         if ( jQuery.Deferred.exceptionHook ) {
3655                                                                                                 jQuery.Deferred.exceptionHook( e,
3656                                                                                                         process.stackTrace );
3657                                                                                         }
3658
3659                                                                                         // Support: Promises/A+ section 2.3.3.3.4.1
3660                                                                                         // https://promisesaplus.com/#point-61
3661                                                                                         // Ignore post-resolution exceptions
3662                                                                                         if ( depth + 1 >= maxDepth ) {
3663
3664                                                                                                 // Only substitute handlers pass on context
3665                                                                                                 // and multiple values (non-spec behavior)
3666                                                                                                 if ( handler !== Thrower ) {
3667                                                                                                         that = undefined;
3668                                                                                                         args = [ e ];
3669                                                                                                 }
3670
3671                                                                                                 deferred.rejectWith( that, args );
3672                                                                                         }
3673                                                                                 }
3674                                                                         };
3675
3676                                                         // Support: Promises/A+ section 2.3.3.3.1
3677                                                         // https://promisesaplus.com/#point-57
3678                                                         // Re-resolve promises immediately to dodge false rejection from
3679                                                         // subsequent errors
3680                                                         if ( depth ) {
3681                                                                 process();
3682                                                         } else {
3683
3684                                                                 // Call an optional hook to record the stack, in case of exception
3685                                                                 // since it's otherwise lost when execution goes async
3686                                                                 if ( jQuery.Deferred.getStackHook ) {
3687                                                                         process.stackTrace = jQuery.Deferred.getStackHook();
3688                                                                 }
3689                                                                 window.setTimeout( process );
3690                                                         }
3691                                                 };
3692                                         }
3693
3694                                         return jQuery.Deferred( function( newDefer ) {
3695
3696                                                 // progress_handlers.add( ... )
3697                                                 tuples[ 0 ][ 3 ].add(
3698                                                         resolve(
3699                                                                 0,
3700                                                                 newDefer,
3701                                                                 jQuery.isFunction( onProgress ) ?
3702                                                                         onProgress :
3703                                                                         Identity,
3704                                                                 newDefer.notifyWith
3705                                                         )
3706                                                 );
3707
3708                                                 // fulfilled_handlers.add( ... )
3709                                                 tuples[ 1 ][ 3 ].add(
3710                                                         resolve(
3711                                                                 0,
3712                                                                 newDefer,
3713                                                                 jQuery.isFunction( onFulfilled ) ?
3714                                                                         onFulfilled :
3715                                                                         Identity
3716                                                         )
3717                                                 );
3718
3719                                                 // rejected_handlers.add( ... )
3720                                                 tuples[ 2 ][ 3 ].add(
3721                                                         resolve(
3722                                                                 0,
3723                                                                 newDefer,
3724                                                                 jQuery.isFunction( onRejected ) ?
3725                                                                         onRejected :
3726                                                                         Thrower
3727                                                         )
3728                                                 );
3729                                         } ).promise();
3730                                 },
3731
3732                                 // Get a promise for this deferred
3733                                 // If obj is provided, the promise aspect is added to the object
3734                                 promise: function( obj ) {
3735                                         return obj != null ? jQuery.extend( obj, promise ) : promise;
3736                                 }
3737                         },
3738                         deferred = {};
3739
3740                 // Add list-specific methods
3741                 jQuery.each( tuples, function( i, tuple ) {
3742                         var list = tuple[ 2 ],
3743                                 stateString = tuple[ 5 ];
3744
3745                         // promise.progress = list.add
3746                         // promise.done = list.add
3747                         // promise.fail = list.add
3748                         promise[ tuple[ 1 ] ] = list.add;
3749
3750                         // Handle state
3751                         if ( stateString ) {
3752                                 list.add(
3753                                         function() {
3754
3755                                                 // state = "resolved" (i.e., fulfilled)
3756                                                 // state = "rejected"
3757                                                 state = stateString;
3758                                         },
3759
3760                                         // rejected_callbacks.disable
3761                                         // fulfilled_callbacks.disable
3762                                         tuples[ 3 - i ][ 2 ].disable,
3763
3764                                         // progress_callbacks.lock
3765                                         tuples[ 0 ][ 2 ].lock
3766                                 );
3767                         }
3768
3769                         // progress_handlers.fire
3770                         // fulfilled_handlers.fire
3771                         // rejected_handlers.fire
3772                         list.add( tuple[ 3 ].fire );
3773
3774                         // deferred.notify = function() { deferred.notifyWith(...) }
3775                         // deferred.resolve = function() { deferred.resolveWith(...) }
3776                         // deferred.reject = function() { deferred.rejectWith(...) }
3777                         deferred[ tuple[ 0 ] ] = function() {
3778                                 deferred[ tuple[ 0 ] + "With" ]( this === deferred ? undefined : this, arguments );
3779                                 return this;
3780                         };
3781
3782                         // deferred.notifyWith = list.fireWith
3783                         // deferred.resolveWith = list.fireWith
3784                         // deferred.rejectWith = list.fireWith
3785                         deferred[ tuple[ 0 ] + "With" ] = list.fireWith;
3786                 } );
3787
3788                 // Make the deferred a promise
3789                 promise.promise( deferred );
3790
3791                 // Call given func if any
3792                 if ( func ) {
3793                         func.call( deferred, deferred );
3794                 }
3795
3796                 // All done!
3797                 return deferred;
3798         },
3799
3800         // Deferred helper
3801         when: function( singleValue ) {
3802                 var
3803
3804                         // count of uncompleted subordinates
3805                         remaining = arguments.length,
3806
3807                         // count of unprocessed arguments
3808                         i = remaining,
3809
3810                         // subordinate fulfillment data
3811                         resolveContexts = Array( i ),
3812                         resolveValues = slice.call( arguments ),
3813
3814                         // the master Deferred
3815                         master = jQuery.Deferred(),
3816
3817                         // subordinate callback factory
3818                         updateFunc = function( i ) {
3819                                 return function( value ) {
3820                                         resolveContexts[ i ] = this;
3821                                         resolveValues[ i ] = arguments.length > 1 ? slice.call( arguments ) : value;
3822                                         if ( !( --remaining ) ) {
3823                                                 master.resolveWith( resolveContexts, resolveValues );
3824                                         }
3825                                 };
3826                         };
3827
3828                 // Single- and empty arguments are adopted like Promise.resolve
3829                 if ( remaining <= 1 ) {
3830                         adoptValue( singleValue, master.done( updateFunc( i ) ).resolve, master.reject,
3831                                 !remaining );
3832
3833                         // Use .then() to unwrap secondary thenables (cf. gh-3000)
3834                         if ( master.state() === "pending" ||
3835                                 jQuery.isFunction( resolveValues[ i ] && resolveValues[ i ].then ) ) {
3836
3837                                 return master.then();
3838                         }
3839                 }
3840
3841                 // Multiple arguments are aggregated like Promise.all array elements
3842                 while ( i-- ) {
3843                         adoptValue( resolveValues[ i ], updateFunc( i ), master.reject );
3844                 }
3845
3846                 return master.promise();
3847         }
3848 } );
3849
3850
3851 // These usually indicate a programmer mistake during development,
3852 // warn about them ASAP rather than swallowing them by default.
3853 var rerrorNames = /^(Eval|Internal|Range|Reference|Syntax|Type|URI)Error$/;
3854
3855 jQuery.Deferred.exceptionHook = function( error, stack ) {
3856
3857         // Support: IE 8 - 9 only
3858         // Console exists when dev tools are open, which can happen at any time
3859         if ( window.console && window.console.warn && error && rerrorNames.test( error.name ) ) {
3860                 window.console.warn( "jQuery.Deferred exception: " + error.message, error.stack, stack );
3861         }
3862 };
3863
3864
3865
3866
3867 jQuery.readyException = function( error ) {
3868         window.setTimeout( function() {
3869                 throw error;
3870         } );
3871 };
3872
3873
3874
3875
3876 // The deferred used on DOM ready
3877 var readyList = jQuery.Deferred();
3878
3879 jQuery.fn.ready = function( fn ) {
3880
3881         readyList
3882                 .then( fn )
3883
3884                 // Wrap jQuery.readyException in a function so that the lookup
3885                 // happens at the time of error handling instead of callback
3886                 // registration.
3887                 .catch( function( error ) {
3888                         jQuery.readyException( error );
3889                 } );
3890
3891         return this;
3892 };
3893
3894 jQuery.extend( {
3895
3896         // Is the DOM ready to be used? Set to true once it occurs.
3897         isReady: false,
3898
3899         // A counter to track how many items to wait for before
3900         // the ready event fires. See #6781
3901         readyWait: 1,
3902
3903         // Handle when the DOM is ready
3904         ready: function( wait ) {
3905
3906                 // Abort if there are pending holds or we're already ready
3907                 if ( wait === true ? --jQuery.readyWait : jQuery.isReady ) {
3908                         return;
3909                 }
3910
3911                 // Remember that the DOM is ready
3912                 jQuery.isReady = true;
3913
3914                 // If a normal DOM Ready event fired, decrement, and wait if need be
3915                 if ( wait !== true && --jQuery.readyWait > 0 ) {
3916                         return;
3917                 }
3918
3919                 // If there are functions bound, to execute
3920                 readyList.resolveWith( document, [ jQuery ] );
3921         }
3922 } );
3923
3924 jQuery.ready.then = readyList.then;
3925
3926 // The ready event handler and self cleanup method
3927 function completed() {
3928         document.removeEventListener( "DOMContentLoaded", completed );
3929         window.removeEventListener( "load", completed );
3930         jQuery.ready();
3931 }
3932
3933 // Catch cases where $(document).ready() is called
3934 // after the browser event has already occurred.
3935 // Support: IE <=9 - 10 only
3936 // Older IE sometimes signals "interactive" too soon
3937 if ( document.readyState === "complete" ||
3938         ( document.readyState !== "loading" && !document.documentElement.doScroll ) ) {
3939
3940         // Handle it asynchronously to allow scripts the opportunity to delay ready
3941         window.setTimeout( jQuery.ready );
3942
3943 } else {
3944
3945         // Use the handy event callback
3946         document.addEventListener( "DOMContentLoaded", completed );
3947
3948         // A fallback to window.onload, that will always work
3949         window.addEventListener( "load", completed );
3950 }
3951
3952
3953
3954
3955 // Multifunctional method to get and set values of a collection
3956 // The value/s can optionally be executed if it's a function
3957 var access = function( elems, fn, key, value, chainable, emptyGet, raw ) {
3958         var i = 0,
3959                 len = elems.length,
3960                 bulk = key == null;
3961
3962         // Sets many values
3963         if ( jQuery.type( key ) === "object" ) {
3964                 chainable = true;
3965                 for ( i in key ) {
3966                         access( elems, fn, i, key[ i ], true, emptyGet, raw );
3967                 }
3968
3969         // Sets one value
3970         } else if ( value !== undefined ) {
3971                 chainable = true;
3972
3973                 if ( !jQuery.isFunction( value ) ) {
3974                         raw = true;
3975                 }
3976
3977                 if ( bulk ) {
3978
3979                         // Bulk operations run against the entire set
3980                         if ( raw ) {
3981                                 fn.call( elems, value );
3982                                 fn = null;
3983
3984                         // ...except when executing function values
3985                         } else {
3986                                 bulk = fn;
3987                                 fn = function( elem, key, value ) {
3988                                         return bulk.call( jQuery( elem ), value );
3989                                 };
3990                         }
3991                 }
3992
3993                 if ( fn ) {
3994                         for ( ; i < len; i++ ) {
3995                                 fn(
3996                                         elems[ i ], key, raw ?
3997                                         value :
3998                                         value.call( elems[ i ], i, fn( elems[ i ], key ) )
3999                                 );
4000                         }
4001                 }
4002         }
4003
4004         if ( chainable ) {
4005                 return elems;
4006         }
4007
4008         // Gets
4009         if ( bulk ) {
4010                 return fn.call( elems );
4011         }
4012
4013         return len ? fn( elems[ 0 ], key ) : emptyGet;
4014 };
4015 var acceptData = function( owner ) {
4016
4017         // Accepts only:
4018         //  - Node
4019         //    - Node.ELEMENT_NODE
4020         //    - Node.DOCUMENT_NODE
4021         //  - Object
4022         //    - Any
4023         return owner.nodeType === 1 || owner.nodeType === 9 || !( +owner.nodeType );
4024 };
4025
4026
4027
4028
4029 function Data() {
4030         this.expando = jQuery.expando + Data.uid++;
4031 }
4032
4033 Data.uid = 1;
4034
4035 Data.prototype = {
4036
4037         cache: function( owner ) {
4038
4039                 // Check if the owner object already has a cache
4040                 var value = owner[ this.expando ];
4041
4042                 // If not, create one
4043                 if ( !value ) {
4044                         value = {};
4045
4046                         // We can accept data for non-element nodes in modern browsers,
4047                         // but we should not, see #8335.
4048                         // Always return an empty object.
4049                         if ( acceptData( owner ) ) {
4050
4051                                 // If it is a node unlikely to be stringify-ed or looped over
4052                                 // use plain assignment
4053                                 if ( owner.nodeType ) {
4054                                         owner[ this.expando ] = value;
4055
4056                                 // Otherwise secure it in a non-enumerable property
4057                                 // configurable must be true to allow the property to be
4058                                 // deleted when data is removed
4059                                 } else {
4060                                         Object.defineProperty( owner, this.expando, {
4061                                                 value: value,
4062                                                 configurable: true
4063                                         } );
4064                                 }
4065                         }
4066                 }
4067
4068                 return value;
4069         },
4070         set: function( owner, data, value ) {
4071                 var prop,
4072                         cache = this.cache( owner );
4073
4074                 // Handle: [ owner, key, value ] args
4075                 // Always use camelCase key (gh-2257)
4076                 if ( typeof data === "string" ) {
4077                         cache[ jQuery.camelCase( data ) ] = value;
4078
4079                 // Handle: [ owner, { properties } ] args
4080                 } else {
4081
4082                         // Copy the properties one-by-one to the cache object
4083                         for ( prop in data ) {
4084                                 cache[ jQuery.camelCase( prop ) ] = data[ prop ];
4085                         }
4086                 }
4087                 return cache;
4088         },
4089         get: function( owner, key ) {
4090                 return key === undefined ?
4091                         this.cache( owner ) :
4092
4093                         // Always use camelCase key (gh-2257)
4094                         owner[ this.expando ] && owner[ this.expando ][ jQuery.camelCase( key ) ];
4095         },
4096         access: function( owner, key, value ) {
4097
4098                 // In cases where either:
4099                 //
4100                 //   1. No key was specified
4101                 //   2. A string key was specified, but no value provided
4102                 //
4103                 // Take the "read" path and allow the get method to determine
4104                 // which value to return, respectively either:
4105                 //
4106                 //   1. The entire cache object
4107                 //   2. The data stored at the key
4108                 //
4109                 if ( key === undefined ||
4110                                 ( ( key && typeof key === "string" ) && value === undefined ) ) {
4111
4112                         return this.get( owner, key );
4113                 }
4114
4115                 // When the key is not a string, or both a key and value
4116                 // are specified, set or extend (existing objects) with either:
4117                 //
4118                 //   1. An object of properties
4119                 //   2. A key and value
4120                 //
4121                 this.set( owner, key, value );
4122
4123                 // Since the "set" path can have two possible entry points
4124                 // return the expected data based on which path was taken[*]
4125                 return value !== undefined ? value : key;
4126         },
4127         remove: function( owner, key ) {
4128                 var i,
4129                         cache = owner[ this.expando ];
4130
4131                 if ( cache === undefined ) {
4132                         return;
4133                 }
4134
4135                 if ( key !== undefined ) {
4136
4137                         // Support array or space separated string of keys
4138                         if ( Array.isArray( key ) ) {
4139
4140                                 // If key is an array of keys...
4141                                 // We always set camelCase keys, so remove that.
4142                                 key = key.map( jQuery.camelCase );
4143                         } else {
4144                                 key = jQuery.camelCase( key );
4145
4146                                 // If a key with the spaces exists, use it.
4147                                 // Otherwise, create an array by matching non-whitespace
4148                                 key = key in cache ?
4149                                         [ key ] :
4150                                         ( key.match( rnothtmlwhite ) || [] );
4151                         }
4152
4153                         i = key.length;
4154
4155                         while ( i-- ) {
4156                                 delete cache[ key[ i ] ];
4157                         }
4158                 }
4159
4160                 // Remove the expando if there's no more data
4161                 if ( key === undefined || jQuery.isEmptyObject( cache ) ) {
4162
4163                         // Support: Chrome <=35 - 45
4164                         // Webkit & Blink performance suffers when deleting properties
4165                         // from DOM nodes, so set to undefined instead
4166                         // https://bugs.chromium.org/p/chromium/issues/detail?id=378607 (bug restricted)
4167                         if ( owner.nodeType ) {
4168                                 owner[ this.expando ] = undefined;
4169                         } else {
4170                                 delete owner[ this.expando ];
4171                         }
4172                 }
4173         },
4174         hasData: function( owner ) {
4175                 var cache = owner[ this.expando ];
4176                 return cache !== undefined && !jQuery.isEmptyObject( cache );
4177         }
4178 };
4179 var dataPriv = new Data();
4180
4181 var dataUser = new Data();
4182
4183
4184
4185 //      Implementation Summary
4186 //
4187 //      1. Enforce API surface and semantic compatibility with 1.9.x branch
4188 //      2. Improve the module's maintainability by reducing the storage
4189 //              paths to a single mechanism.
4190 //      3. Use the same single mechanism to support "private" and "user" data.
4191 //      4. _Never_ expose "private" data to user code (TODO: Drop _data, _removeData)
4192 //      5. Avoid exposing implementation details on user objects (eg. expando properties)
4193 //      6. Provide a clear path for implementation upgrade to WeakMap in 2014
4194
4195 var rbrace = /^(?:\{[\w\W]*\}|\[[\w\W]*\])$/,
4196         rmultiDash = /[A-Z]/g;
4197
4198 function getData( data ) {
4199         if ( data === "true" ) {
4200                 return true;
4201         }
4202
4203         if ( data === "false" ) {
4204                 return false;
4205         }
4206
4207         if ( data === "null" ) {
4208                 return null;
4209         }
4210
4211         // Only convert to a number if it doesn't change the string
4212         if ( data === +data + "" ) {
4213                 return +data;
4214         }
4215
4216         if ( rbrace.test( data ) ) {
4217                 return JSON.parse( data );
4218         }
4219
4220         return data;
4221 }
4222
4223 function dataAttr( elem, key, data ) {
4224         var name;
4225
4226         // If nothing was found internally, try to fetch any
4227         // data from the HTML5 data-* attribute
4228         if ( data === undefined && elem.nodeType === 1 ) {
4229                 name = "data-" + key.replace( rmultiDash, "-$&" ).toLowerCase();
4230                 data = elem.getAttribute( name );
4231
4232                 if ( typeof data === "string" ) {
4233                         try {
4234                                 data = getData( data );
4235                         } catch ( e ) {}
4236
4237                         // Make sure we set the data so it isn't changed later
4238                         dataUser.set( elem, key, data );
4239                 } else {
4240                         data = undefined;
4241                 }
4242         }
4243         return data;
4244 }
4245
4246 jQuery.extend( {
4247         hasData: function( elem ) {
4248                 return dataUser.hasData( elem ) || dataPriv.hasData( elem );
4249         },
4250
4251         data: function( elem, name, data ) {
4252                 return dataUser.access( elem, name, data );
4253         },
4254
4255         removeData: function( elem, name ) {
4256                 dataUser.remove( elem, name );
4257         },
4258
4259         // TODO: Now that all calls to _data and _removeData have been replaced
4260         // with direct calls to dataPriv methods, these can be deprecated.
4261         _data: function( elem, name, data ) {
4262                 return dataPriv.access( elem, name, data );
4263         },
4264
4265         _removeData: function( elem, name ) {
4266                 dataPriv.remove( elem, name );
4267         }
4268 } );
4269
4270 jQuery.fn.extend( {
4271         data: function( key, value ) {
4272                 var i, name, data,
4273                         elem = this[ 0 ],
4274                         attrs = elem && elem.attributes;
4275
4276                 // Gets all values
4277                 if ( key === undefined ) {
4278                         if ( this.length ) {
4279                                 data = dataUser.get( elem );
4280
4281                                 if ( elem.nodeType === 1 && !dataPriv.get( elem, "hasDataAttrs" ) ) {
4282                                         i = attrs.length;
4283                                         while ( i-- ) {
4284
4285                                                 // Support: IE 11 only
4286                                                 // The attrs elements can be null (#14894)
4287                                                 if ( attrs[ i ] ) {
4288                                                         name = attrs[ i ].name;
4289                                                         if ( name.indexOf( "data-" ) === 0 ) {
4290                                                                 name = jQuery.camelCase( name.slice( 5 ) );
4291                                                                 dataAttr( elem, name, data[ name ] );
4292                                                         }
4293                                                 }
4294                                         }
4295                                         dataPriv.set( elem, "hasDataAttrs", true );
4296                                 }
4297                         }
4298
4299                         return data;
4300                 }
4301
4302                 // Sets multiple values
4303                 if ( typeof key === "object" ) {
4304                         return this.each( function() {
4305                                 dataUser.set( this, key );
4306                         } );
4307                 }
4308
4309                 return access( this, function( value ) {
4310                         var data;
4311
4312                         // The calling jQuery object (element matches) is not empty
4313                         // (and therefore has an element appears at this[ 0 ]) and the
4314                         // `value` parameter was not undefined. An empty jQuery object
4315                         // will result in `undefined` for elem = this[ 0 ] which will
4316                         // throw an exception if an attempt to read a data cache is made.
4317                         if ( elem && value === undefined ) {
4318
4319                                 // Attempt to get data from the cache
4320                                 // The key will always be camelCased in Data
4321                                 data = dataUser.get( elem, key );
4322                                 if ( data !== undefined ) {
4323                                         return data;
4324                                 }
4325
4326                                 // Attempt to "discover" the data in
4327                                 // HTML5 custom data-* attrs
4328                                 data = dataAttr( elem, key );
4329                                 if ( data !== undefined ) {
4330                                         return data;
4331                                 }
4332
4333                                 // We tried really hard, but the data doesn't exist.
4334                                 return;
4335                         }
4336
4337                         // Set the data...
4338                         this.each( function() {
4339
4340                                 // We always store the camelCased key
4341                                 dataUser.set( this, key, value );
4342                         } );
4343                 }, null, value, arguments.length > 1, null, true );
4344         },
4345
4346         removeData: function( key ) {
4347                 return this.each( function() {
4348                         dataUser.remove( this, key );
4349                 } );
4350         }
4351 } );
4352
4353
4354 jQuery.extend( {
4355         queue: function( elem, type, data ) {
4356                 var queue;
4357
4358                 if ( elem ) {
4359                         type = ( type || "fx" ) + "queue";
4360                         queue = dataPriv.get( elem, type );
4361
4362                         // Speed up dequeue by getting out quickly if this is just a lookup
4363                         if ( data ) {
4364                                 if ( !queue || Array.isArray( data ) ) {
4365                                         queue = dataPriv.access( elem, type, jQuery.makeArray( data ) );
4366                                 } else {
4367                                         queue.push( data );
4368                                 }
4369                         }
4370                         return queue || [];
4371                 }
4372         },
4373
4374         dequeue: function( elem, type ) {
4375                 type = type || "fx";
4376
4377                 var queue = jQuery.queue( elem, type ),
4378                         startLength = queue.length,
4379                         fn = queue.shift(),
4380                         hooks = jQuery._queueHooks( elem, type ),
4381                         next = function() {
4382                                 jQuery.dequeue( elem, type );
4383                         };
4384
4385                 // If the fx queue is dequeued, always remove the progress sentinel
4386                 if ( fn === "inprogress" ) {
4387                         fn = queue.shift();
4388                         startLength--;
4389                 }
4390
4391                 if ( fn ) {
4392
4393                         // Add a progress sentinel to prevent the fx queue from being
4394                         // automatically dequeued
4395                         if ( type === "fx" ) {
4396                                 queue.unshift( "inprogress" );
4397                         }
4398
4399                         // Clear up the last queue stop function
4400                         delete hooks.stop;
4401                         fn.call( elem, next, hooks );
4402                 }
4403
4404                 if ( !startLength && hooks ) {
4405                         hooks.empty.fire();
4406                 }
4407         },
4408
4409         // Not public - generate a queueHooks object, or return the current one
4410         _queueHooks: function( elem, type ) {
4411                 var key = type + "queueHooks";
4412                 return dataPriv.get( elem, key ) || dataPriv.access( elem, key, {
4413                         empty: jQuery.Callbacks( "once memory" ).add( function() {
4414                                 dataPriv.remove( elem, [ type + "queue", key ] );
4415                         } )
4416                 } );
4417         }
4418 } );
4419
4420 jQuery.fn.extend( {
4421         queue: function( type, data ) {
4422                 var setter = 2;
4423
4424                 if ( typeof type !== "string" ) {
4425                         data = type;
4426                         type = "fx";
4427                         setter--;
4428                 }
4429
4430                 if ( arguments.length < setter ) {
4431                         return jQuery.queue( this[ 0 ], type );
4432                 }
4433
4434                 return data === undefined ?
4435                         this :
4436                         this.each( function() {
4437                                 var queue = jQuery.queue( this, type, data );
4438
4439                                 // Ensure a hooks for this queue
4440                                 jQuery._queueHooks( this, type );
4441
4442                                 if ( type === "fx" && queue[ 0 ] !== "inprogress" ) {
4443                                         jQuery.dequeue( this, type );
4444                                 }
4445                         } );
4446         },
4447         dequeue: function( type ) {
4448                 return this.each( function() {
4449                         jQuery.dequeue( this, type );
4450                 } );
4451         },
4452         clearQueue: function( type ) {
4453                 return this.queue( type || "fx", [] );
4454         },
4455
4456         // Get a promise resolved when queues of a certain type
4457         // are emptied (fx is the type by default)
4458         promise: function( type, obj ) {
4459                 var tmp,
4460                         count = 1,
4461                         defer = jQuery.Deferred(),
4462                         elements = this,
4463                         i = this.length,
4464                         resolve = function() {
4465                                 if ( !( --count ) ) {
4466                                         defer.resolveWith( elements, [ elements ] );
4467                                 }
4468                         };
4469
4470                 if ( typeof type !== "string" ) {
4471                         obj = type;
4472                         type = undefined;
4473                 }
4474                 type = type || "fx";
4475
4476                 while ( i-- ) {
4477                         tmp = dataPriv.get( elements[ i ], type + "queueHooks" );
4478                         if ( tmp && tmp.empty ) {
4479                                 count++;
4480                                 tmp.empty.add( resolve );
4481                         }
4482                 }
4483                 resolve();
4484                 return defer.promise( obj );
4485         }
4486 } );
4487 var pnum = ( /[+-]?(?:\d*\.|)\d+(?:[eE][+-]?\d+|)/ ).source;
4488
4489 var rcssNum = new RegExp( "^(?:([+-])=|)(" + pnum + ")([a-z%]*)$", "i" );
4490
4491
4492 var cssExpand = [ "Top", "Right", "Bottom", "Left" ];
4493
4494 var isHiddenWithinTree = function( elem, el ) {
4495
4496                 // isHiddenWithinTree might be called from jQuery#filter function;
4497                 // in that case, element will be second argument
4498                 elem = el || elem;
4499
4500                 // Inline style trumps all
4501                 return elem.style.display === "none" ||
4502                         elem.style.display === "" &&
4503
4504                         // Otherwise, check computed style
4505                         // Support: Firefox <=43 - 45
4506                         // Disconnected elements can have computed display: none, so first confirm that elem is
4507                         // in the document.
4508                         jQuery.contains( elem.ownerDocument, elem ) &&
4509
4510                         jQuery.css( elem, "display" ) === "none";
4511         };
4512
4513 var swap = function( elem, options, callback, args ) {
4514         var ret, name,
4515                 old = {};
4516
4517         // Remember the old values, and insert the new ones
4518         for ( name in options ) {
4519                 old[ name ] = elem.style[ name ];
4520                 elem.style[ name ] = options[ name ];
4521         }
4522
4523         ret = callback.apply( elem, args || [] );
4524
4525         // Revert the old values
4526         for ( name in options ) {
4527                 elem.style[ name ] = old[ name ];
4528         }
4529
4530         return ret;
4531 };
4532
4533
4534
4535
4536 function adjustCSS( elem, prop, valueParts, tween ) {
4537         var adjusted,
4538                 scale = 1,
4539                 maxIterations = 20,
4540                 currentValue = tween ?
4541                         function() {
4542                                 return tween.cur();
4543                         } :
4544                         function() {
4545                                 return jQuery.css( elem, prop, "" );
4546                         },
4547                 initial = currentValue(),
4548                 unit = valueParts && valueParts[ 3 ] || ( jQuery.cssNumber[ prop ] ? "" : "px" ),
4549
4550                 // Starting value computation is required for potential unit mismatches
4551                 initialInUnit = ( jQuery.cssNumber[ prop ] || unit !== "px" && +initial ) &&
4552                         rcssNum.exec( jQuery.css( elem, prop ) );
4553
4554         if ( initialInUnit && initialInUnit[ 3 ] !== unit ) {
4555
4556                 // Trust units reported by jQuery.css
4557                 unit = unit || initialInUnit[ 3 ];
4558
4559                 // Make sure we update the tween properties later on
4560                 valueParts = valueParts || [];
4561
4562                 // Iteratively approximate from a nonzero starting point
4563                 initialInUnit = +initial || 1;
4564
4565                 do {
4566
4567                         // If previous iteration zeroed out, double until we get *something*.
4568                         // Use string for doubling so we don't accidentally see scale as unchanged below
4569                         scale = scale || ".5";
4570
4571                         // Adjust and apply
4572                         initialInUnit = initialInUnit / scale;
4573                         jQuery.style( elem, prop, initialInUnit + unit );
4574
4575                 // Update scale, tolerating zero or NaN from tween.cur()
4576                 // Break the loop if scale is unchanged or perfect, or if we've just had enough.
4577                 } while (
4578                         scale !== ( scale = currentValue() / initial ) && scale !== 1 && --maxIterations
4579                 );
4580         }
4581
4582         if ( valueParts ) {
4583                 initialInUnit = +initialInUnit || +initial || 0;
4584
4585                 // Apply relative offset (+=/-=) if specified
4586                 adjusted = valueParts[ 1 ] ?
4587                         initialInUnit + ( valueParts[ 1 ] + 1 ) * valueParts[ 2 ] :
4588                         +valueParts[ 2 ];
4589                 if ( tween ) {
4590                         tween.unit = unit;
4591                         tween.start = initialInUnit;
4592                         tween.end = adjusted;
4593                 }
4594         }
4595         return adjusted;
4596 }
4597
4598
4599 var defaultDisplayMap = {};
4600
4601 function getDefaultDisplay( elem ) {
4602         var temp,
4603                 doc = elem.ownerDocument,
4604                 nodeName = elem.nodeName,
4605                 display = defaultDisplayMap[ nodeName ];
4606
4607         if ( display ) {
4608                 return display;
4609         }
4610
4611         temp = doc.body.appendChild( doc.createElement( nodeName ) );
4612         display = jQuery.css( temp, "display" );
4613
4614         temp.parentNode.removeChild( temp );
4615
4616         if ( display === "none" ) {
4617                 display = "block";
4618         }
4619         defaultDisplayMap[ nodeName ] = display;
4620
4621         return display;
4622 }
4623
4624 function showHide( elements, show ) {
4625         var display, elem,
4626                 values = [],
4627                 index = 0,
4628                 length = elements.length;
4629
4630         // Determine new display value for elements that need to change
4631         for ( ; index < length; index++ ) {
4632                 elem = elements[ index ];
4633                 if ( !elem.style ) {
4634                         continue;
4635                 }
4636
4637                 display = elem.style.display;
4638                 if ( show ) {
4639
4640                         // Since we force visibility upon cascade-hidden elements, an immediate (and slow)
4641                         // check is required in this first loop unless we have a nonempty display value (either
4642                         // inline or about-to-be-restored)
4643                         if ( display === "none" ) {
4644                                 values[ index ] = dataPriv.get( elem, "display" ) || null;
4645                                 if ( !values[ index ] ) {
4646                                         elem.style.display = "";
4647                                 }
4648                         }
4649                         if ( elem.style.display === "" && isHiddenWithinTree( elem ) ) {
4650                                 values[ index ] = getDefaultDisplay( elem );
4651                         }
4652                 } else {
4653                         if ( display !== "none" ) {
4654                                 values[ index ] = "none";
4655
4656                                 // Remember what we're overwriting
4657                                 dataPriv.set( elem, "display", display );
4658                         }
4659                 }
4660         }
4661
4662         // Set the display of the elements in a second loop to avoid constant reflow
4663         for ( index = 0; index < length; index++ ) {
4664                 if ( values[ index ] != null ) {
4665                         elements[ index ].style.display = values[ index ];
4666                 }
4667         }
4668
4669         return elements;
4670 }
4671
4672 jQuery.fn.extend( {
4673         show: function() {
4674                 return showHide( this, true );
4675         },
4676         hide: function() {
4677                 return showHide( this );
4678         },
4679         toggle: function( state ) {
4680                 if ( typeof state === "boolean" ) {
4681                         return state ? this.show() : this.hide();
4682                 }
4683
4684                 return this.each( function() {
4685                         if ( isHiddenWithinTree( this ) ) {
4686                                 jQuery( this ).show();
4687                         } else {
4688                                 jQuery( this ).hide();
4689                         }
4690                 } );
4691         }
4692 } );
4693 var rcheckableType = ( /^(?:checkbox|radio)$/i );
4694
4695 var rtagName = ( /<([a-z][^\/\0>\x20\t\r\n\f]+)/i );
4696
4697 var rscriptType = ( /^$|\/(?:java|ecma)script/i );
4698
4699
4700
4701 // We have to close these tags to support XHTML (#13200)
4702 var wrapMap = {
4703
4704         // Support: IE <=9 only
4705         option: [ 1, "<select multiple='multiple'>", "</select>" ],
4706
4707         // XHTML parsers do not magically insert elements in the
4708         // same way that tag soup parsers do. So we cannot shorten
4709         // this by omitting <tbody> or other required elements.
4710         thead: [ 1, "<table>", "</table>" ],
4711         col: [ 2, "<table><colgroup>", "</colgroup></table>" ],
4712         tr: [ 2, "<table><tbody>", "</tbody></table>" ],
4713         td: [ 3, "<table><tbody><tr>", "</tr></tbody></table>" ],
4714
4715         _default: [ 0, "", "" ]
4716 };
4717
4718 // Support: IE <=9 only
4719 wrapMap.optgroup = wrapMap.option;
4720
4721 wrapMap.tbody = wrapMap.tfoot = wrapMap.colgroup = wrapMap.caption = wrapMap.thead;
4722 wrapMap.th = wrapMap.td;
4723
4724
4725 function getAll( context, tag ) {
4726
4727         // Support: IE <=9 - 11 only
4728         // Use typeof to avoid zero-argument method invocation on host objects (#15151)
4729         var ret;
4730
4731         if ( typeof context.getElementsByTagName !== "undefined" ) {
4732                 ret = context.getElementsByTagName( tag || "*" );
4733
4734         } else if ( typeof context.querySelectorAll !== "undefined" ) {
4735                 ret = context.querySelectorAll( tag || "*" );
4736
4737         } else {
4738                 ret = [];
4739         }
4740
4741         if ( tag === undefined || tag && nodeName( context, tag ) ) {
4742                 return jQuery.merge( [ context ], ret );
4743         }
4744
4745         return ret;
4746 }
4747
4748
4749 // Mark scripts as having already been evaluated
4750 function setGlobalEval( elems, refElements ) {
4751         var i = 0,
4752                 l = elems.length;
4753
4754         for ( ; i < l; i++ ) {
4755                 dataPriv.set(
4756                         elems[ i ],
4757                         "globalEval",
4758                         !refElements || dataPriv.get( refElements[ i ], "globalEval" )
4759                 );
4760         }
4761 }
4762
4763
4764 var rhtml = /<|&#?\w+;/;
4765
4766 function buildFragment( elems, context, scripts, selection, ignored ) {
4767         var elem, tmp, tag, wrap, contains, j,
4768                 fragment = context.createDocumentFragment(),
4769                 nodes = [],
4770                 i = 0,
4771                 l = elems.length;
4772
4773         for ( ; i < l; i++ ) {
4774                 elem = elems[ i ];
4775
4776                 if ( elem || elem === 0 ) {
4777
4778                         // Add nodes directly
4779                         if ( jQuery.type( elem ) === "object" ) {
4780
4781                                 // Support: Android <=4.0 only, PhantomJS 1 only
4782                                 // push.apply(_, arraylike) throws on ancient WebKit
4783                                 jQuery.merge( nodes, elem.nodeType ? [ elem ] : elem );
4784
4785                         // Convert non-html into a text node
4786                         } else if ( !rhtml.test( elem ) ) {
4787                                 nodes.push( context.createTextNode( elem ) );
4788
4789                         // Convert html into DOM nodes
4790                         } else {
4791                                 tmp = tmp || fragment.appendChild( context.createElement( "div" ) );
4792
4793                                 // Deserialize a standard representation
4794                                 tag = ( rtagName.exec( elem ) || [ "", "" ] )[ 1 ].toLowerCase();
4795                                 wrap = wrapMap[ tag ] || wrapMap._default;
4796                                 tmp.innerHTML = wrap[ 1 ] + jQuery.htmlPrefilter( elem ) + wrap[ 2 ];
4797
4798                                 // Descend through wrappers to the right content
4799                                 j = wrap[ 0 ];
4800                                 while ( j-- ) {
4801                                         tmp = tmp.lastChild;
4802                                 }
4803
4804                                 // Support: Android <=4.0 only, PhantomJS 1 only
4805                                 // push.apply(_, arraylike) throws on ancient WebKit
4806                                 jQuery.merge( nodes, tmp.childNodes );
4807
4808                                 // Remember the top-level container
4809                                 tmp = fragment.firstChild;
4810
4811                                 // Ensure the created nodes are orphaned (#12392)
4812                                 tmp.textContent = "";
4813                         }
4814                 }
4815         }
4816
4817         // Remove wrapper from fragment
4818         fragment.textContent = "";
4819
4820         i = 0;
4821         while ( ( elem = nodes[ i++ ] ) ) {
4822
4823                 // Skip elements already in the context collection (trac-4087)
4824                 if ( selection && jQuery.inArray( elem, selection ) > -1 ) {
4825                         if ( ignored ) {
4826                                 ignored.push( elem );
4827                         }
4828                         continue;
4829                 }
4830
4831                 contains = jQuery.contains( elem.ownerDocument, elem );
4832
4833                 // Append to fragment
4834                 tmp = getAll( fragment.appendChild( elem ), "script" );
4835
4836                 // Preserve script evaluation history
4837                 if ( contains ) {
4838                         setGlobalEval( tmp );
4839                 }
4840
4841                 // Capture executables
4842                 if ( scripts ) {
4843                         j = 0;
4844                         while ( ( elem = tmp[ j++ ] ) ) {
4845                                 if ( rscriptType.test( elem.type || "" ) ) {
4846                                         scripts.push( elem );
4847                                 }
4848                         }
4849                 }
4850         }
4851
4852         return fragment;
4853 }
4854
4855
4856 ( function() {
4857         var fragment = document.createDocumentFragment(),
4858                 div = fragment.appendChild( document.createElement( "div" ) ),
4859                 input = document.createElement( "input" );
4860
4861         // Support: Android 4.0 - 4.3 only
4862         // Check state lost if the name is set (#11217)
4863         // Support: Windows Web Apps (WWA)
4864         // `name` and `type` must use .setAttribute for WWA (#14901)
4865         input.setAttribute( "type", "radio" );
4866         input.setAttribute( "checked", "checked" );
4867         input.setAttribute( "name", "t" );
4868
4869         div.appendChild( input );
4870
4871         // Support: Android <=4.1 only
4872         // Older WebKit doesn't clone checked state correctly in fragments
4873         support.checkClone = div.cloneNode( true ).cloneNode( true ).lastChild.checked;
4874
4875         // Support: IE <=11 only
4876         // Make sure textarea (and checkbox) defaultValue is properly cloned
4877         div.innerHTML = "<textarea>x</textarea>";
4878         support.noCloneChecked = !!div.cloneNode( true ).lastChild.defaultValue;
4879 } )();
4880 var documentElement = document.documentElement;
4881
4882
4883
4884 var
4885         rkeyEvent = /^key/,
4886         rmouseEvent = /^(?:mouse|pointer|contextmenu|drag|drop)|click/,
4887         rtypenamespace = /^([^.]*)(?:\.(.+)|)/;
4888
4889 function returnTrue() {
4890         return true;
4891 }
4892
4893 function returnFalse() {
4894         return false;
4895 }
4896
4897 // Support: IE <=9 only
4898 // See #13393 for more info
4899 function safeActiveElement() {
4900         try {
4901                 return document.activeElement;
4902         } catch ( err ) { }
4903 }
4904
4905 function on( elem, types, selector, data, fn, one ) {
4906         var origFn, type;
4907
4908         // Types can be a map of types/handlers
4909         if ( typeof types === "object" ) {
4910
4911                 // ( types-Object, selector, data )
4912                 if ( typeof selector !== "string" ) {
4913
4914                         // ( types-Object, data )
4915                         data = data || selector;
4916                         selector = undefined;
4917                 }
4918                 for ( type in types ) {
4919                         on( elem, type, selector, data, types[ type ], one );
4920                 }
4921                 return elem;
4922         }
4923
4924         if ( data == null && fn == null ) {
4925
4926                 // ( types, fn )
4927                 fn = selector;
4928                 data = selector = undefined;
4929         } else if ( fn == null ) {
4930                 if ( typeof selector === "string" ) {
4931
4932                         // ( types, selector, fn )
4933                         fn = data;
4934                         data = undefined;
4935                 } else {
4936
4937                         // ( types, data, fn )
4938                         fn = data;
4939                         data = selector;
4940                         selector = undefined;
4941                 }
4942         }
4943         if ( fn === false ) {
4944                 fn = returnFalse;
4945         } else if ( !fn ) {
4946                 return elem;
4947         }
4948
4949         if ( one === 1 ) {
4950                 origFn = fn;
4951                 fn = function( event ) {
4952
4953                         // Can use an empty set, since event contains the info
4954                         jQuery().off( event );
4955                         return origFn.apply( this, arguments );
4956                 };
4957
4958                 // Use same guid so caller can remove using origFn
4959                 fn.guid = origFn.guid || ( origFn.guid = jQuery.guid++ );
4960         }
4961         return elem.each( function() {
4962                 jQuery.event.add( this, types, fn, data, selector );
4963         } );
4964 }
4965
4966 /*
4967  * Helper functions for managing events -- not part of the public interface.
4968  * Props to Dean Edwards' addEvent library for many of the ideas.
4969  */
4970 jQuery.event = {
4971
4972         global: {},
4973
4974         add: function( elem, types, handler, data, selector ) {
4975
4976                 var handleObjIn, eventHandle, tmp,
4977                         events, t, handleObj,
4978                         special, handlers, type, namespaces, origType,
4979                         elemData = dataPriv.get( elem );
4980
4981                 // Don't attach events to noData or text/comment nodes (but allow plain objects)
4982                 if ( !elemData ) {
4983                         return;
4984                 }
4985
4986                 // Caller can pass in an object of custom data in lieu of the handler
4987                 if ( handler.handler ) {
4988                         handleObjIn = handler;
4989                         handler = handleObjIn.handler;
4990                         selector = handleObjIn.selector;
4991                 }
4992
4993                 // Ensure that invalid selectors throw exceptions at attach time
4994                 // Evaluate against documentElement in case elem is a non-element node (e.g., document)
4995                 if ( selector ) {
4996                         jQuery.find.matchesSelector( documentElement, selector );
4997                 }
4998
4999                 // Make sure that the handler has a unique ID, used to find/remove it later
5000                 if ( !handler.guid ) {
5001                         handler.guid = jQuery.guid++;
5002                 }
5003
5004                 // Init the element's event structure and main handler, if this is the first
5005                 if ( !( events = elemData.events ) ) {
5006                         events = elemData.events = {};
5007                 }
5008                 if ( !( eventHandle = elemData.handle ) ) {
5009                         eventHandle = elemData.handle = function( e ) {
5010
5011                                 // Discard the second event of a jQuery.event.trigger() and
5012                                 // when an event is called after a page has unloaded
5013                                 return typeof jQuery !== "undefined" && jQuery.event.triggered !== e.type ?
5014                                         jQuery.event.dispatch.apply( elem, arguments ) : undefined;
5015                         };
5016                 }
5017
5018                 // Handle multiple events separated by a space
5019                 types = ( types || "" ).match( rnothtmlwhite ) || [ "" ];
5020                 t = types.length;
5021                 while ( t-- ) {
5022                         tmp = rtypenamespace.exec( types[ t ] ) || [];
5023                         type = origType = tmp[ 1 ];
5024                         namespaces = ( tmp[ 2 ] || "" ).split( "." ).sort();
5025
5026                         // There *must* be a type, no attaching namespace-only handlers
5027                         if ( !type ) {
5028                                 continue;
5029                         }
5030
5031                         // If event changes its type, use the special event handlers for the changed type
5032                         special = jQuery.event.special[ type ] || {};
5033
5034                         // If selector defined, determine special event api type, otherwise given type
5035                         type = ( selector ? special.delegateType : special.bindType ) || type;
5036
5037                         // Update special based on newly reset type
5038                         special = jQuery.event.special[ type ] || {};
5039
5040                         // handleObj is passed to all event handlers
5041                         handleObj = jQuery.extend( {
5042                                 type: type,
5043                                 origType: origType,
5044                                 data: data,
5045                                 handler: handler,
5046                                 guid: handler.guid,
5047                                 selector: selector,
5048                                 needsContext: selector && jQuery.expr.match.needsContext.test( selector ),
5049                                 namespace: namespaces.join( "." )
5050                         }, handleObjIn );
5051
5052                         // Init the event handler queue if we're the first
5053                         if ( !( handlers = events[ type ] ) ) {
5054                                 handlers = events[ type ] = [];
5055                                 handlers.delegateCount = 0;
5056
5057                                 // Only use addEventListener if the special events handler returns false
5058                                 if ( !special.setup ||
5059                                         special.setup.call( elem, data, namespaces, eventHandle ) === false ) {
5060
5061                                         if ( elem.addEventListener ) {
5062                                                 elem.addEventListener( type, eventHandle );
5063                                         }
5064                                 }
5065                         }
5066
5067                         if ( special.add ) {
5068                                 special.add.call( elem, handleObj );
5069
5070                                 if ( !handleObj.handler.guid ) {
5071                                         handleObj.handler.guid = handler.guid;
5072                                 }
5073                         }
5074
5075                         // Add to the element's handler list, delegates in front
5076                         if ( selector ) {
5077                                 handlers.splice( handlers.delegateCount++, 0, handleObj );
5078                         } else {
5079                                 handlers.push( handleObj );
5080                         }
5081
5082                         // Keep track of which events have ever been used, for event optimization
5083                         jQuery.event.global[ type ] = true;
5084                 }
5085
5086         },
5087
5088         // Detach an event or set of events from an element
5089         remove: function( elem, types, handler, selector, mappedTypes ) {
5090
5091                 var j, origCount, tmp,
5092                         events, t, handleObj,
5093                         special, handlers, type, namespaces, origType,
5094                         elemData = dataPriv.hasData( elem ) && dataPriv.get( elem );
5095
5096                 if ( !elemData || !( events = elemData.events ) ) {
5097                         return;
5098                 }
5099
5100                 // Once for each type.namespace in types; type may be omitted
5101                 types = ( types || "" ).match( rnothtmlwhite ) || [ "" ];
5102                 t = types.length;
5103                 while ( t-- ) {
5104                         tmp = rtypenamespace.exec( types[ t ] ) || [];
5105                         type = origType = tmp[ 1 ];
5106                         namespaces = ( tmp[ 2 ] || "" ).split( "." ).sort();
5107
5108                         // Unbind all events (on this namespace, if provided) for the element
5109                         if ( !type ) {
5110                                 for ( type in events ) {
5111                                         jQuery.event.remove( elem, type + types[ t ], handler, selector, true );
5112                                 }
5113                                 continue;
5114                         }
5115
5116                         special = jQuery.event.special[ type ] || {};
5117                         type = ( selector ? special.delegateType : special.bindType ) || type;
5118                         handlers = events[ type ] || [];
5119                         tmp = tmp[ 2 ] &&
5120                                 new RegExp( "(^|\\.)" + namespaces.join( "\\.(?:.*\\.|)" ) + "(\\.|$)" );
5121
5122                         // Remove matching events
5123                         origCount = j = handlers.length;
5124                         while ( j-- ) {
5125                                 handleObj = handlers[ j ];
5126
5127                                 if ( ( mappedTypes || origType === handleObj.origType ) &&
5128                                         ( !handler || handler.guid === handleObj.guid ) &&
5129                                         ( !tmp || tmp.test( handleObj.namespace ) ) &&
5130                                         ( !selector || selector === handleObj.selector ||
5131                                                 selector === "**" && handleObj.selector ) ) {
5132                                         handlers.splice( j, 1 );
5133
5134                                         if ( handleObj.selector ) {
5135                                                 handlers.delegateCount--;
5136                                         }
5137                                         if ( special.remove ) {
5138                                                 special.remove.call( elem, handleObj );
5139                                         }
5140                                 }
5141                         }
5142
5143                         // Remove generic event handler if we removed something and no more handlers exist
5144                         // (avoids potential for endless recursion during removal of special event handlers)
5145                         if ( origCount && !handlers.length ) {
5146                                 if ( !special.teardown ||
5147                                         special.teardown.call( elem, namespaces, elemData.handle ) === false ) {
5148
5149                                         jQuery.removeEvent( elem, type, elemData.handle );
5150                                 }
5151
5152                                 delete events[ type ];
5153                         }
5154                 }
5155
5156                 // Remove data and the expando if it's no longer used
5157                 if ( jQuery.isEmptyObject( events ) ) {
5158                         dataPriv.remove( elem, "handle events" );
5159                 }
5160         },
5161
5162         dispatch: function( nativeEvent ) {
5163
5164                 // Make a writable jQuery.Event from the native event object
5165                 var event = jQuery.event.fix( nativeEvent );
5166
5167                 var i, j, ret, matched, handleObj, handlerQueue,
5168                         args = new Array( arguments.length ),
5169                         handlers = ( dataPriv.get( this, "events" ) || {} )[ event.type ] || [],
5170                         special = jQuery.event.special[ event.type ] || {};
5171
5172                 // Use the fix-ed jQuery.Event rather than the (read-only) native event
5173                 args[ 0 ] = event;
5174
5175                 for ( i = 1; i < arguments.length; i++ ) {
5176                         args[ i ] = arguments[ i ];
5177                 }
5178
5179                 event.delegateTarget = this;
5180
5181                 // Call the preDispatch hook for the mapped type, and let it bail if desired
5182                 if ( special.preDispatch && special.preDispatch.call( this, event ) === false ) {
5183                         return;
5184                 }
5185
5186                 // Determine handlers
5187                 handlerQueue = jQuery.event.handlers.call( this, event, handlers );
5188
5189                 // Run delegates first; they may want to stop propagation beneath us
5190                 i = 0;
5191                 while ( ( matched = handlerQueue[ i++ ] ) && !event.isPropagationStopped() ) {
5192                         event.currentTarget = matched.elem;
5193
5194                         j = 0;
5195                         while ( ( handleObj = matched.handlers[ j++ ] ) &&
5196                                 !event.isImmediatePropagationStopped() ) {
5197
5198                                 // Triggered event must either 1) have no namespace, or 2) have namespace(s)
5199                                 // a subset or equal to those in the bound event (both can have no namespace).
5200                                 if ( !event.rnamespace || event.rnamespace.test( handleObj.namespace ) ) {
5201
5202                                         event.handleObj = handleObj;
5203                                         event.data = handleObj.data;
5204
5205                                         ret = ( ( jQuery.event.special[ handleObj.origType ] || {} ).handle ||
5206                                                 handleObj.handler ).apply( matched.elem, args );
5207
5208                                         if ( ret !== undefined ) {
5209                                                 if ( ( event.result = ret ) === false ) {
5210                                                         event.preventDefault();
5211                                                         event.stopPropagation();
5212                                                 }
5213                                         }
5214                                 }
5215                         }
5216                 }
5217
5218                 // Call the postDispatch hook for the mapped type
5219                 if ( special.postDispatch ) {
5220                         special.postDispatch.call( this, event );
5221                 }
5222
5223                 return event.result;
5224         },
5225
5226         handlers: function( event, handlers ) {
5227                 var i, handleObj, sel, matchedHandlers, matchedSelectors,
5228                         handlerQueue = [],
5229                         delegateCount = handlers.delegateCount,
5230                         cur = event.target;
5231
5232                 // Find delegate handlers
5233                 if ( delegateCount &&
5234
5235                         // Support: IE <=9
5236                         // Black-hole SVG <use> instance trees (trac-13180)
5237                         cur.nodeType &&
5238
5239                         // Support: Firefox <=42
5240                         // Suppress spec-violating clicks indicating a non-primary pointer button (trac-3861)
5241                         // https://www.w3.org/TR/DOM-Level-3-Events/#event-type-click
5242                         // Support: IE 11 only
5243                         // ...but not arrow key "clicks" of radio inputs, which can have `button` -1 (gh-2343)
5244                         !( event.type === "click" && event.button >= 1 ) ) {
5245
5246                         for ( ; cur !== this; cur = cur.parentNode || this ) {
5247
5248                                 // Don't check non-elements (#13208)
5249                                 // Don't process clicks on disabled elements (#6911, #8165, #11382, #11764)
5250                                 if ( cur.nodeType === 1 && !( event.type === "click" && cur.disabled === true ) ) {
5251                                         matchedHandlers = [];
5252                                         matchedSelectors = {};
5253                                         for ( i = 0; i < delegateCount; i++ ) {
5254                                                 handleObj = handlers[ i ];
5255
5256                                                 // Don't conflict with Object.prototype properties (#13203)
5257                                                 sel = handleObj.selector + " ";
5258
5259                                                 if ( matchedSelectors[ sel ] === undefined ) {
5260                                                         matchedSelectors[ sel ] = handleObj.needsContext ?
5261                                                                 jQuery( sel, this ).index( cur ) > -1 :
5262                                                                 jQuery.find( sel, this, null, [ cur ] ).length;
5263                                                 }
5264                                                 if ( matchedSelectors[ sel ] ) {
5265                                                         matchedHandlers.push( handleObj );
5266                                                 }
5267                                         }
5268                                         if ( matchedHandlers.length ) {
5269                                                 handlerQueue.push( { elem: cur, handlers: matchedHandlers } );
5270                                         }
5271                                 }
5272                         }
5273                 }
5274
5275                 // Add the remaining (directly-bound) handlers
5276                 cur = this;
5277                 if ( delegateCount < handlers.length ) {
5278                         handlerQueue.push( { elem: cur, handlers: handlers.slice( delegateCount ) } );
5279                 }
5280
5281                 return handlerQueue;
5282         },
5283
5284         addProp: function( name, hook ) {
5285                 Object.defineProperty( jQuery.Event.prototype, name, {
5286                         enumerable: true,
5287                         configurable: true,
5288
5289                         get: jQuery.isFunction( hook ) ?
5290                                 function() {
5291                                         if ( this.originalEvent ) {
5292                                                         return hook( this.originalEvent );
5293                                         }
5294                                 } :
5295                                 function() {
5296                                         if ( this.originalEvent ) {
5297                                                         return this.originalEvent[ name ];
5298                                         }
5299                                 },
5300
5301                         set: function( value ) {
5302                                 Object.defineProperty( this, name, {
5303                                         enumerable: true,
5304                                         configurable: true,
5305                                         writable: true,
5306                                         value: value
5307                                 } );
5308                         }
5309                 } );
5310         },
5311
5312         fix: function( originalEvent ) {
5313                 return originalEvent[ jQuery.expando ] ?
5314                         originalEvent :
5315                         new jQuery.Event( originalEvent );
5316         },
5317
5318         special: {
5319                 load: {
5320
5321                         // Prevent triggered image.load events from bubbling to window.load
5322                         noBubble: true
5323                 },
5324                 focus: {
5325
5326                         // Fire native event if possible so blur/focus sequence is correct
5327                         trigger: function() {
5328                                 if ( this !== safeActiveElement() && this.focus ) {
5329                                         this.focus();
5330                                         return false;
5331                                 }
5332                         },
5333                         delegateType: "focusin"
5334                 },
5335                 blur: {
5336                         trigger: function() {
5337                                 if ( this === safeActiveElement() && this.blur ) {
5338                                         this.blur();
5339                                         return false;
5340                                 }
5341                         },
5342                         delegateType: "focusout"
5343                 },
5344                 click: {
5345
5346                         // For checkbox, fire native event so checked state will be right
5347                         trigger: function() {
5348                                 if ( this.type === "checkbox" && this.click && nodeName( this, "input" ) ) {
5349                                         this.click();
5350                                         return false;
5351                                 }
5352                         },
5353
5354                         // For cross-browser consistency, don't fire native .click() on links
5355                         _default: function( event ) {
5356                                 return nodeName( event.target, "a" );
5357                         }
5358                 },
5359
5360                 beforeunload: {
5361                         postDispatch: function( event ) {
5362
5363                                 // Support: Firefox 20+
5364                                 // Firefox doesn't alert if the returnValue field is not set.
5365                                 if ( event.result !== undefined && event.originalEvent ) {
5366                                         event.originalEvent.returnValue = event.result;
5367                                 }
5368                         }
5369                 }
5370         }
5371 };
5372
5373 jQuery.removeEvent = function( elem, type, handle ) {
5374
5375         // This "if" is needed for plain objects
5376         if ( elem.removeEventListener ) {
5377                 elem.removeEventListener( type, handle );
5378         }
5379 };
5380
5381 jQuery.Event = function( src, props ) {
5382
5383         // Allow instantiation without the 'new' keyword
5384         if ( !( this instanceof jQuery.Event ) ) {
5385                 return new jQuery.Event( src, props );
5386         }
5387
5388         // Event object
5389         if ( src && src.type ) {
5390                 this.originalEvent = src;
5391                 this.type = src.type;
5392
5393                 // Events bubbling up the document may have been marked as prevented
5394                 // by a handler lower down the tree; reflect the correct value.
5395                 this.isDefaultPrevented = src.defaultPrevented ||
5396                                 src.defaultPrevented === undefined &&
5397
5398                                 // Support: Android <=2.3 only
5399                                 src.returnValue === false ?
5400                         returnTrue :
5401                         returnFalse;
5402
5403                 // Create target properties
5404                 // Support: Safari <=6 - 7 only
5405                 // Target should not be a text node (#504, #13143)
5406                 this.target = ( src.target && src.target.nodeType === 3 ) ?
5407                         src.target.parentNode :
5408                         src.target;
5409
5410                 this.currentTarget = src.currentTarget;
5411                 this.relatedTarget = src.relatedTarget;
5412
5413         // Event type
5414         } else {
5415                 this.type = src;
5416         }
5417
5418         // Put explicitly provided properties onto the event object
5419         if ( props ) {
5420                 jQuery.extend( this, props );
5421         }
5422
5423         // Create a timestamp if incoming event doesn't have one
5424         this.timeStamp = src && src.timeStamp || jQuery.now();
5425
5426         // Mark it as fixed
5427         this[ jQuery.expando ] = true;
5428 };
5429
5430 // jQuery.Event is based on DOM3 Events as specified by the ECMAScript Language Binding
5431 // https://www.w3.org/TR/2003/WD-DOM-Level-3-Events-20030331/ecma-script-binding.html
5432 jQuery.Event.prototype = {
5433         constructor: jQuery.Event,
5434         isDefaultPrevented: returnFalse,
5435         isPropagationStopped: returnFalse,
5436         isImmediatePropagationStopped: returnFalse,
5437         isSimulated: false,
5438
5439         preventDefault: function() {
5440                 var e = this.originalEvent;
5441
5442                 this.isDefaultPrevented = returnTrue;
5443
5444                 if ( e && !this.isSimulated ) {
5445                         e.preventDefault();
5446                 }
5447         },
5448         stopPropagation: function() {
5449                 var e = this.originalEvent;
5450
5451                 this.isPropagationStopped = returnTrue;
5452
5453                 if ( e && !this.isSimulated ) {
5454                         e.stopPropagation();
5455                 }
5456         },
5457         stopImmediatePropagation: function() {
5458                 var e = this.originalEvent;
5459
5460                 this.isImmediatePropagationStopped = returnTrue;
5461
5462                 if ( e && !this.isSimulated ) {
5463                         e.stopImmediatePropagation();
5464                 }
5465
5466                 this.stopPropagation();
5467         }
5468 };
5469
5470 // Includes all common event props including KeyEvent and MouseEvent specific props
5471 jQuery.each( {
5472         altKey: true,
5473         bubbles: true,
5474         cancelable: true,
5475         changedTouches: true,
5476         ctrlKey: true,
5477         detail: true,
5478         eventPhase: true,
5479         metaKey: true,
5480         pageX: true,
5481         pageY: true,
5482         shiftKey: true,
5483         view: true,
5484         "char": true,
5485         charCode: true,
5486         key: true,
5487         keyCode: true,
5488         button: true,
5489         buttons: true,
5490         clientX: true,
5491         clientY: true,
5492         offsetX: true,
5493         offsetY: true,
5494         pointerId: true,
5495         pointerType: true,
5496         screenX: true,
5497         screenY: true,
5498         targetTouches: true,
5499         toElement: true,
5500         touches: true,
5501
5502         which: function( event ) {
5503                 var button = event.button;
5504
5505                 // Add which for key events
5506                 if ( event.which == null && rkeyEvent.test( event.type ) ) {
5507                         return event.charCode != null ? event.charCode : event.keyCode;
5508                 }
5509
5510                 // Add which for click: 1 === left; 2 === middle; 3 === right
5511                 if ( !event.which && button !== undefined && rmouseEvent.test( event.type ) ) {
5512                         if ( button & 1 ) {
5513                                 return 1;
5514                         }
5515
5516                         if ( button & 2 ) {
5517                                 return 3;
5518                         }
5519
5520                         if ( button & 4 ) {
5521                                 return 2;
5522                         }
5523
5524                         return 0;
5525                 }
5526
5527                 return event.which;
5528         }
5529 }, jQuery.event.addProp );
5530
5531 // Create mouseenter/leave events using mouseover/out and event-time checks
5532 // so that event delegation works in jQuery.
5533 // Do the same for pointerenter/pointerleave and pointerover/pointerout
5534 //
5535 // Support: Safari 7 only
5536 // Safari sends mouseenter too often; see:
5537 // https://bugs.chromium.org/p/chromium/issues/detail?id=470258
5538 // for the description of the bug (it existed in older Chrome versions as well).
5539 jQuery.each( {
5540         mouseenter: "mouseover",
5541         mouseleave: "mouseout",
5542         pointerenter: "pointerover",
5543         pointerleave: "pointerout"
5544 }, function( orig, fix ) {
5545         jQuery.event.special[ orig ] = {
5546                 delegateType: fix,
5547                 bindType: fix,
5548
5549                 handle: function( event ) {
5550                         var ret,
5551                                 target = this,
5552                                 related = event.relatedTarget,
5553                                 handleObj = event.handleObj;
5554
5555                         // For mouseenter/leave call the handler if related is outside the target.
5556                         // NB: No relatedTarget if the mouse left/entered the browser window
5557                         if ( !related || ( related !== target && !jQuery.contains( target, related ) ) ) {
5558                                 event.type = handleObj.origType;
5559                                 ret = handleObj.handler.apply( this, arguments );
5560                                 event.type = fix;
5561                         }
5562                         return ret;
5563                 }
5564         };
5565 } );
5566
5567 jQuery.fn.extend( {
5568
5569         on: function( types, selector, data, fn ) {
5570                 return on( this, types, selector, data, fn );
5571         },
5572         one: function( types, selector, data, fn ) {
5573                 return on( this, types, selector, data, fn, 1 );
5574         },
5575         off: function( types, selector, fn ) {
5576                 var handleObj, type;
5577                 if ( types && types.preventDefault && types.handleObj ) {
5578
5579                         // ( event )  dispatched jQuery.Event
5580                         handleObj = types.handleObj;
5581                         jQuery( types.delegateTarget ).off(
5582                                 handleObj.namespace ?
5583                                         handleObj.origType + "." + handleObj.namespace :
5584                                         handleObj.origType,
5585                                 handleObj.selector,
5586                                 handleObj.handler
5587                         );
5588                         return this;
5589                 }
5590                 if ( typeof types === "object" ) {
5591
5592                         // ( types-object [, selector] )
5593                         for ( type in types ) {
5594                                 this.off( type, selector, types[ type ] );
5595                         }
5596                         return this;
5597                 }
5598                 if ( selector === false || typeof selector === "function" ) {
5599
5600                         // ( types [, fn] )
5601                         fn = selector;
5602                         selector = undefined;
5603                 }
5604                 if ( fn === false ) {
5605                         fn = returnFalse;
5606                 }
5607                 return this.each( function() {
5608                         jQuery.event.remove( this, types, fn, selector );
5609                 } );
5610         }
5611 } );
5612
5613
5614 var
5615
5616         /* eslint-disable max-len */
5617
5618         // See https://github.com/eslint/eslint/issues/3229
5619         rxhtmlTag = /<(?!area|br|col|embed|hr|img|input|link|meta|param)(([a-z][^\/\0>\x20\t\r\n\f]*)[^>]*)\/>/gi,
5620
5621         /* eslint-enable */
5622
5623         // Support: IE <=10 - 11, Edge 12 - 13
5624         // In IE/Edge using regex groups here causes severe slowdowns.
5625         // See https://connect.microsoft.com/IE/feedback/details/1736512/
5626         rnoInnerhtml = /<script|<style|<link/i,
5627
5628         // checked="checked" or checked
5629         rchecked = /checked\s*(?:[^=]|=\s*.checked.)/i,
5630         rscriptTypeMasked = /^true\/(.*)/,
5631         rcleanScript = /^\s*<!(?:\[CDATA\[|--)|(?:\]\]|--)>\s*$/g;
5632
5633 // Prefer a tbody over its parent table for containing new rows
5634 function manipulationTarget( elem, content ) {
5635         if ( nodeName( elem, "table" ) &&
5636                 nodeName( content.nodeType !== 11 ? content : content.firstChild, "tr" ) ) {
5637
5638                 return jQuery( ">tbody", elem )[ 0 ] || elem;
5639         }
5640
5641         return elem;
5642 }
5643
5644 // Replace/restore the type attribute of script elements for safe DOM manipulation
5645 function disableScript( elem ) {
5646         elem.type = ( elem.getAttribute( "type" ) !== null ) + "/" + elem.type;
5647         return elem;
5648 }
5649 function restoreScript( elem ) {
5650         var match = rscriptTypeMasked.exec( elem.type );
5651
5652         if ( match ) {
5653                 elem.type = match[ 1 ];
5654         } else {
5655                 elem.removeAttribute( "type" );
5656         }
5657
5658         return elem;
5659 }
5660
5661 function cloneCopyEvent( src, dest ) {
5662         var i, l, type, pdataOld, pdataCur, udataOld, udataCur, events;
5663
5664         if ( dest.nodeType !== 1 ) {
5665                 return;
5666         }
5667
5668         // 1. Copy private data: events, handlers, etc.
5669         if ( dataPriv.hasData( src ) ) {
5670                 pdataOld = dataPriv.access( src );
5671                 pdataCur = dataPriv.set( dest, pdataOld );
5672                 events = pdataOld.events;
5673
5674                 if ( events ) {
5675                         delete pdataCur.handle;
5676                         pdataCur.events = {};
5677
5678                         for ( type in events ) {
5679                                 for ( i = 0, l = events[ type ].length; i < l; i++ ) {
5680                                         jQuery.event.add( dest, type, events[ type ][ i ] );
5681                                 }
5682                         }
5683                 }
5684         }
5685
5686         // 2. Copy user data
5687         if ( dataUser.hasData( src ) ) {
5688                 udataOld = dataUser.access( src );
5689                 udataCur = jQuery.extend( {}, udataOld );
5690
5691                 dataUser.set( dest, udataCur );
5692         }
5693 }
5694
5695 // Fix IE bugs, see support tests
5696 function fixInput( src, dest ) {
5697         var nodeName = dest.nodeName.toLowerCase();
5698
5699         // Fails to persist the checked state of a cloned checkbox or radio button.
5700         if ( nodeName === "input" && rcheckableType.test( src.type ) ) {
5701                 dest.checked = src.checked;
5702
5703         // Fails to return the selected option to the default selected state when cloning options
5704         } else if ( nodeName === "input" || nodeName === "textarea" ) {
5705                 dest.defaultValue = src.defaultValue;
5706         }
5707 }
5708
5709 function domManip( collection, args, callback, ignored ) {
5710
5711         // Flatten any nested arrays
5712         args = concat.apply( [], args );
5713
5714         var fragment, first, scripts, hasScripts, node, doc,
5715                 i = 0,
5716                 l = collection.length,
5717                 iNoClone = l - 1,
5718                 value = args[ 0 ],
5719                 isFunction = jQuery.isFunction( value );
5720
5721         // We can't cloneNode fragments that contain checked, in WebKit
5722         if ( isFunction ||
5723                         ( l > 1 && typeof value === "string" &&
5724                                 !support.checkClone && rchecked.test( value ) ) ) {
5725                 return collection.each( function( index ) {
5726                         var self = collection.eq( index );
5727                         if ( isFunction ) {
5728                                 args[ 0 ] = value.call( this, index, self.html() );
5729                         }
5730                         domManip( self, args, callback, ignored );
5731                 } );
5732         }
5733
5734         if ( l ) {
5735                 fragment = buildFragment( args, collection[ 0 ].ownerDocument, false, collection, ignored );
5736                 first = fragment.firstChild;
5737
5738                 if ( fragment.childNodes.length === 1 ) {
5739                         fragment = first;
5740                 }
5741
5742                 // Require either new content or an interest in ignored elements to invoke the callback
5743                 if ( first || ignored ) {
5744                         scripts = jQuery.map( getAll( fragment, "script" ), disableScript );
5745                         hasScripts = scripts.length;
5746
5747                         // Use the original fragment for the last item
5748                         // instead of the first because it can end up
5749                         // being emptied incorrectly in certain situations (#8070).
5750                         for ( ; i < l; i++ ) {
5751                                 node = fragment;
5752
5753                                 if ( i !== iNoClone ) {
5754                                         node = jQuery.clone( node, true, true );
5755
5756                                         // Keep references to cloned scripts for later restoration
5757                                         if ( hasScripts ) {
5758
5759                                                 // Support: Android <=4.0 only, PhantomJS 1 only
5760                                                 // push.apply(_, arraylike) throws on ancient WebKit
5761                                                 jQuery.merge( scripts, getAll( node, "script" ) );
5762                                         }
5763                                 }
5764
5765                                 callback.call( collection[ i ], node, i );
5766                         }
5767
5768                         if ( hasScripts ) {
5769                                 doc = scripts[ scripts.length - 1 ].ownerDocument;
5770
5771                                 // Reenable scripts
5772                                 jQuery.map( scripts, restoreScript );
5773
5774                                 // Evaluate executable scripts on first document insertion
5775                                 for ( i = 0; i < hasScripts; i++ ) {
5776                                         node = scripts[ i ];
5777                                         if ( rscriptType.test( node.type || "" ) &&
5778                                                 !dataPriv.access( node, "globalEval" ) &&
5779                                                 jQuery.contains( doc, node ) ) {
5780
5781                                                 if ( node.src ) {
5782
5783                                                         // Optional AJAX dependency, but won't run scripts if not present
5784                                                         if ( jQuery._evalUrl ) {
5785                                                                 jQuery._evalUrl( node.src );
5786                                                         }
5787                                                 } else {
5788                                                         DOMEval( node.textContent.replace( rcleanScript, "" ), doc );
5789                                                 }
5790                                         }
5791                                 }
5792                         }
5793                 }
5794         }
5795
5796         return collection;
5797 }
5798
5799 function remove( elem, selector, keepData ) {
5800         var node,
5801                 nodes = selector ? jQuery.filter( selector, elem ) : elem,
5802                 i = 0;
5803
5804         for ( ; ( node = nodes[ i ] ) != null; i++ ) {
5805                 if ( !keepData && node.nodeType === 1 ) {
5806                         jQuery.cleanData( getAll( node ) );
5807                 }
5808
5809                 if ( node.parentNode ) {
5810                         if ( keepData && jQuery.contains( node.ownerDocument, node ) ) {
5811                                 setGlobalEval( getAll( node, "script" ) );
5812                         }
5813                         node.parentNode.removeChild( node );
5814                 }
5815         }
5816
5817         return elem;
5818 }
5819
5820 jQuery.extend( {
5821         htmlPrefilter: function( html ) {
5822                 return html.replace( rxhtmlTag, "<$1></$2>" );
5823         },
5824
5825         clone: function( elem, dataAndEvents, deepDataAndEvents ) {
5826                 var i, l, srcElements, destElements,
5827                         clone = elem.cloneNode( true ),
5828                         inPage = jQuery.contains( elem.ownerDocument, elem );
5829
5830                 // Fix IE cloning issues
5831                 if ( !support.noCloneChecked && ( elem.nodeType === 1 || elem.nodeType === 11 ) &&
5832                                 !jQuery.isXMLDoc( elem ) ) {
5833
5834                         // We eschew Sizzle here for performance reasons: https://jsperf.com/getall-vs-sizzle/2
5835                         destElements = getAll( clone );
5836                         srcElements = getAll( elem );
5837
5838                         for ( i = 0, l = srcElements.length; i < l; i++ ) {
5839                                 fixInput( srcElements[ i ], destElements[ i ] );
5840                         }
5841                 }
5842
5843                 // Copy the events from the original to the clone
5844                 if ( dataAndEvents ) {
5845                         if ( deepDataAndEvents ) {
5846                                 srcElements = srcElements || getAll( elem );
5847                                 destElements = destElements || getAll( clone );
5848
5849                                 for ( i = 0, l = srcElements.length; i < l; i++ ) {
5850                                         cloneCopyEvent( srcElements[ i ], destElements[ i ] );
5851                                 }
5852                         } else {
5853                                 cloneCopyEvent( elem, clone );
5854                         }
5855                 }
5856
5857                 // Preserve script evaluation history
5858                 destElements = getAll( clone, "script" );
5859                 if ( destElements.length > 0 ) {
5860                         setGlobalEval( destElements, !inPage && getAll( elem, "script" ) );
5861                 }
5862
5863                 // Return the cloned set
5864                 return clone;
5865         },
5866
5867         cleanData: function( elems ) {
5868                 var data, elem, type,
5869                         special = jQuery.event.special,
5870                         i = 0;
5871
5872                 for ( ; ( elem = elems[ i ] ) !== undefined; i++ ) {
5873                         if ( acceptData( elem ) ) {
5874                                 if ( ( data = elem[ dataPriv.expando ] ) ) {
5875                                         if ( data.events ) {
5876                                                 for ( type in data.events ) {
5877                                                         if ( special[ type ] ) {
5878                                                                 jQuery.event.remove( elem, type );
5879
5880                                                         // This is a shortcut to avoid jQuery.event.remove's overhead
5881                                                         } else {
5882                                                                 jQuery.removeEvent( elem, type, data.handle );
5883                                                         }
5884                                                 }
5885                                         }
5886
5887                                         // Support: Chrome <=35 - 45+
5888                                         // Assign undefined instead of using delete, see Data#remove
5889                                         elem[ dataPriv.expando ] = undefined;
5890                                 }
5891                                 if ( elem[ dataUser.expando ] ) {
5892
5893                                         // Support: Chrome <=35 - 45+
5894                                         // Assign undefined instead of using delete, see Data#remove
5895                                         elem[ dataUser.expando ] = undefined;
5896                                 }
5897                         }
5898                 }
5899         }
5900 } );
5901
5902 jQuery.fn.extend( {
5903         detach: function( selector ) {
5904                 return remove( this, selector, true );
5905         },
5906
5907         remove: function( selector ) {
5908                 return remove( this, selector );
5909         },
5910
5911         text: function( value ) {
5912                 return access( this, function( value ) {
5913                         return value === undefined ?
5914                                 jQuery.text( this ) :
5915                                 this.empty().each( function() {
5916                                         if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
5917                                                 this.textContent = value;
5918                                         }
5919                                 } );
5920                 }, null, value, arguments.length );
5921         },
5922
5923         append: function() {
5924                 return domManip( this, arguments, function( elem ) {
5925                         if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
5926                                 var target = manipulationTarget( this, elem );
5927                                 target.appendChild( elem );
5928                         }
5929                 } );
5930         },
5931
5932         prepend: function() {
5933                 return domManip( this, arguments, function( elem ) {
5934                         if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
5935                                 var target = manipulationTarget( this, elem );
5936                                 target.insertBefore( elem, target.firstChild );
5937                         }
5938                 } );
5939         },
5940
5941         before: function() {
5942                 return domManip( this, arguments, function( elem ) {
5943                         if ( this.parentNode ) {
5944                                 this.parentNode.insertBefore( elem, this );
5945                         }
5946                 } );
5947         },
5948
5949         after: function() {
5950                 return domManip( this, arguments, function( elem ) {
5951                         if ( this.parentNode ) {
5952                                 this.parentNode.insertBefore( elem, this.nextSibling );
5953                         }
5954                 } );
5955         },
5956
5957         empty: function() {
5958                 var elem,
5959                         i = 0;
5960
5961                 for ( ; ( elem = this[ i ] ) != null; i++ ) {
5962                         if ( elem.nodeType === 1 ) {
5963
5964                                 // Prevent memory leaks
5965                                 jQuery.cleanData( getAll( elem, false ) );
5966
5967                                 // Remove any remaining nodes
5968                                 elem.textContent = "";
5969                         }
5970                 }
5971
5972                 return this;
5973         },
5974
5975         clone: function( dataAndEvents, deepDataAndEvents ) {
5976                 dataAndEvents = dataAndEvents == null ? false : dataAndEvents;
5977                 deepDataAndEvents = deepDataAndEvents == null ? dataAndEvents : deepDataAndEvents;
5978
5979                 return this.map( function() {
5980                         return jQuery.clone( this, dataAndEvents, deepDataAndEvents );
5981                 } );
5982         },
5983
5984         html: function( value ) {
5985                 return access( this, function( value ) {
5986                         var elem = this[ 0 ] || {},
5987                                 i = 0,
5988                                 l = this.length;
5989
5990                         if ( value === undefined && elem.nodeType === 1 ) {
5991                                 return elem.innerHTML;
5992                         }
5993
5994                         // See if we can take a shortcut and just use innerHTML
5995                         if ( typeof value === "string" && !rnoInnerhtml.test( value ) &&
5996                                 !wrapMap[ ( rtagName.exec( value ) || [ "", "" ] )[ 1 ].toLowerCase() ] ) {
5997
5998                                 value = jQuery.htmlPrefilter( value );
5999
6000                                 try {
6001                                         for ( ; i < l; i++ ) {
6002                                                 elem = this[ i ] || {};
6003
6004                                                 // Remove element nodes and prevent memory leaks
6005                                                 if ( elem.nodeType === 1 ) {
6006                                                         jQuery.cleanData( getAll( elem, false ) );
6007                                                         elem.innerHTML = value;
6008                                                 }
6009                                         }
6010
6011                                         elem = 0;
6012
6013                                 // If using innerHTML throws an exception, use the fallback method
6014                                 } catch ( e ) {}
6015                         }
6016
6017                         if ( elem ) {
6018                                 this.empty().append( value );
6019                         }
6020                 }, null, value, arguments.length );
6021         },
6022
6023         replaceWith: function() {
6024                 var ignored = [];
6025
6026                 // Make the changes, replacing each non-ignored context element with the new content
6027                 return domManip( this, arguments, function( elem ) {
6028                         var parent = this.parentNode;
6029
6030                         if ( jQuery.inArray( this, ignored ) < 0 ) {
6031                                 jQuery.cleanData( getAll( this ) );
6032                                 if ( parent ) {
6033                                         parent.replaceChild( elem, this );
6034                                 }
6035                         }
6036
6037                 // Force callback invocation
6038                 }, ignored );
6039         }
6040 } );
6041
6042 jQuery.each( {
6043         appendTo: "append",
6044         prependTo: "prepend",
6045         insertBefore: "before",
6046         insertAfter: "after",
6047         replaceAll: "replaceWith"
6048 }, function( name, original ) {
6049         jQuery.fn[ name ] = function( selector ) {
6050                 var elems,
6051                         ret = [],
6052                         insert = jQuery( selector ),
6053                         last = insert.length - 1,
6054                         i = 0;
6055
6056                 for ( ; i <= last; i++ ) {
6057                         elems = i === last ? this : this.clone( true );
6058                         jQuery( insert[ i ] )[ original ]( elems );
6059
6060                         // Support: Android <=4.0 only, PhantomJS 1 only
6061                         // .get() because push.apply(_, arraylike) throws on ancient WebKit
6062                         push.apply( ret, elems.get() );
6063                 }
6064
6065                 return this.pushStack( ret );
6066         };
6067 } );
6068 var rmargin = ( /^margin/ );
6069
6070 var rnumnonpx = new RegExp( "^(" + pnum + ")(?!px)[a-z%]+$", "i" );
6071
6072 var getStyles = function( elem ) {
6073
6074                 // Support: IE <=11 only, Firefox <=30 (#15098, #14150)
6075                 // IE throws on elements created in popups
6076                 // FF meanwhile throws on frame elements through "defaultView.getComputedStyle"
6077                 var view = elem.ownerDocument.defaultView;
6078
6079                 if ( !view || !view.opener ) {
6080                         view = window;
6081                 }
6082
6083                 return view.getComputedStyle( elem );
6084         };
6085
6086
6087
6088 ( function() {
6089
6090         // Executing both pixelPosition & boxSizingReliable tests require only one layout
6091         // so they're executed at the same time to save the second computation.
6092         function computeStyleTests() {
6093
6094                 // This is a singleton, we need to execute it only once
6095                 if ( !div ) {
6096                         return;
6097                 }
6098
6099                 div.style.cssText =
6100                         "box-sizing:border-box;" +
6101                         "position:relative;display:block;" +
6102                         "margin:auto;border:1px;padding:1px;" +
6103                         "top:1%;width:50%";
6104                 div.innerHTML = "";
6105                 documentElement.appendChild( container );
6106
6107                 var divStyle = window.getComputedStyle( div );
6108                 pixelPositionVal = divStyle.top !== "1%";
6109
6110                 // Support: Android 4.0 - 4.3 only, Firefox <=3 - 44
6111                 reliableMarginLeftVal = divStyle.marginLeft === "2px";
6112                 boxSizingReliableVal = divStyle.width === "4px";
6113
6114                 // Support: Android 4.0 - 4.3 only
6115                 // Some styles come back with percentage values, even though they shouldn't
6116                 div.style.marginRight = "50%";
6117                 pixelMarginRightVal = divStyle.marginRight === "4px";
6118
6119                 documentElement.removeChild( container );
6120
6121                 // Nullify the div so it wouldn't be stored in the memory and
6122                 // it will also be a sign that checks already performed
6123                 div = null;
6124         }
6125
6126         var pixelPositionVal, boxSizingReliableVal, pixelMarginRightVal, reliableMarginLeftVal,
6127                 container = document.createElement( "div" ),
6128                 div = document.createElement( "div" );
6129
6130         // Finish early in limited (non-browser) environments
6131         if ( !div.style ) {
6132                 return;
6133         }
6134
6135         // Support: IE <=9 - 11 only
6136         // Style of cloned element affects source element cloned (#8908)
6137         div.style.backgroundClip = "content-box";
6138         div.cloneNode( true ).style.backgroundClip = "";
6139         support.clearCloneStyle = div.style.backgroundClip === "content-box";
6140
6141         container.style.cssText = "border:0;width:8px;height:0;top:0;left:-9999px;" +
6142                 "padding:0;margin-top:1px;position:absolute";
6143         container.appendChild( div );
6144
6145         jQuery.extend( support, {
6146                 pixelPosition: function() {
6147                         computeStyleTests();
6148                         return pixelPositionVal;
6149                 },
6150                 boxSizingReliable: function() {
6151                         computeStyleTests();
6152                         return boxSizingReliableVal;
6153                 },
6154                 pixelMarginRight: function() {
6155                         computeStyleTests();
6156                         return pixelMarginRightVal;
6157                 },
6158                 reliableMarginLeft: function() {
6159                         computeStyleTests();
6160                         return reliableMarginLeftVal;
6161                 }
6162         } );
6163 } )();
6164
6165
6166 function curCSS( elem, name, computed ) {
6167         var width, minWidth, maxWidth, ret,
6168
6169                 // Support: Firefox 51+
6170                 // Retrieving style before computed somehow
6171                 // fixes an issue with getting wrong values
6172                 // on detached elements
6173                 style = elem.style;
6174
6175         computed = computed || getStyles( elem );
6176
6177         // getPropertyValue is needed for:
6178         //   .css('filter') (IE 9 only, #12537)
6179         //   .css('--customProperty) (#3144)
6180         if ( computed ) {
6181                 ret = computed.getPropertyValue( name ) || computed[ name ];
6182
6183                 if ( ret === "" && !jQuery.contains( elem.ownerDocument, elem ) ) {
6184                         ret = jQuery.style( elem, name );
6185                 }
6186
6187                 // A tribute to the "awesome hack by Dean Edwards"
6188                 // Android Browser returns percentage for some values,
6189                 // but width seems to be reliably pixels.
6190                 // This is against the CSSOM draft spec:
6191                 // https://drafts.csswg.org/cssom/#resolved-values
6192                 if ( !support.pixelMarginRight() && rnumnonpx.test( ret ) && rmargin.test( name ) ) {
6193
6194                         // Remember the original values
6195                         width = style.width;
6196                         minWidth = style.minWidth;
6197                         maxWidth = style.maxWidth;
6198
6199                         // Put in the new values to get a computed value out
6200                         style.minWidth = style.maxWidth = style.width = ret;
6201                         ret = computed.width;
6202
6203                         // Revert the changed values
6204                         style.width = width;
6205                         style.minWidth = minWidth;
6206                         style.maxWidth = maxWidth;
6207                 }
6208         }
6209
6210         return ret !== undefined ?
6211
6212                 // Support: IE <=9 - 11 only
6213                 // IE returns zIndex value as an integer.
6214                 ret + "" :
6215                 ret;
6216 }
6217
6218
6219 function addGetHookIf( conditionFn, hookFn ) {
6220
6221         // Define the hook, we'll check on the first run if it's really needed.
6222         return {
6223                 get: function() {
6224                         if ( conditionFn() ) {
6225
6226                                 // Hook not needed (or it's not possible to use it due
6227                                 // to missing dependency), remove it.
6228                                 delete this.get;
6229                                 return;
6230                         }
6231
6232                         // Hook needed; redefine it so that the support test is not executed again.
6233                         return ( this.get = hookFn ).apply( this, arguments );
6234                 }
6235         };
6236 }
6237
6238
6239 var
6240
6241         // Swappable if display is none or starts with table
6242         // except "table", "table-cell", or "table-caption"
6243         // See here for display values: https://developer.mozilla.org/en-US/docs/CSS/display
6244         rdisplayswap = /^(none|table(?!-c[ea]).+)/,
6245         rcustomProp = /^--/,
6246         cssShow = { position: "absolute", visibility: "hidden", display: "block" },
6247         cssNormalTransform = {
6248                 letterSpacing: "0",
6249                 fontWeight: "400"
6250         },
6251
6252         cssPrefixes = [ "Webkit", "Moz", "ms" ],
6253         emptyStyle = document.createElement( "div" ).style;
6254
6255 // Return a css property mapped to a potentially vendor prefixed property
6256 function vendorPropName( name ) {
6257
6258         // Shortcut for names that are not vendor prefixed
6259         if ( name in emptyStyle ) {
6260                 return name;
6261         }
6262
6263         // Check for vendor prefixed names
6264         var capName = name[ 0 ].toUpperCase() + name.slice( 1 ),
6265                 i = cssPrefixes.length;
6266
6267         while ( i-- ) {
6268                 name = cssPrefixes[ i ] + capName;
6269                 if ( name in emptyStyle ) {
6270                         return name;
6271                 }
6272         }
6273 }
6274
6275 // Return a property mapped along what jQuery.cssProps suggests or to
6276 // a vendor prefixed property.
6277 function finalPropName( name ) {
6278         var ret = jQuery.cssProps[ name ];
6279         if ( !ret ) {
6280                 ret = jQuery.cssProps[ name ] = vendorPropName( name ) || name;
6281         }
6282         return ret;
6283 }
6284
6285 function setPositiveNumber( elem, value, subtract ) {
6286
6287         // Any relative (+/-) values have already been
6288         // normalized at this point
6289         var matches = rcssNum.exec( value );
6290         return matches ?
6291
6292                 // Guard against undefined "subtract", e.g., when used as in cssHooks
6293                 Math.max( 0, matches[ 2 ] - ( subtract || 0 ) ) + ( matches[ 3 ] || "px" ) :
6294                 value;
6295 }
6296
6297 function augmentWidthOrHeight( elem, name, extra, isBorderBox, styles ) {
6298         var i,
6299                 val = 0;
6300
6301         // If we already have the right measurement, avoid augmentation
6302         if ( extra === ( isBorderBox ? "border" : "content" ) ) {
6303                 i = 4;
6304
6305         // Otherwise initialize for horizontal or vertical properties
6306         } else {
6307                 i = name === "width" ? 1 : 0;
6308         }
6309
6310         for ( ; i < 4; i += 2 ) {
6311
6312                 // Both box models exclude margin, so add it if we want it
6313                 if ( extra === "margin" ) {
6314                         val += jQuery.css( elem, extra + cssExpand[ i ], true, styles );
6315                 }
6316
6317                 if ( isBorderBox ) {
6318
6319                         // border-box includes padding, so remove it if we want content
6320                         if ( extra === "content" ) {
6321                                 val -= jQuery.css( elem, "padding" + cssExpand[ i ], true, styles );
6322                         }
6323
6324                         // At this point, extra isn't border nor margin, so remove border
6325                         if ( extra !== "margin" ) {
6326                                 val -= jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );
6327                         }
6328                 } else {
6329
6330                         // At this point, extra isn't content, so add padding
6331                         val += jQuery.css( elem, "padding" + cssExpand[ i ], true, styles );
6332
6333                         // At this point, extra isn't content nor padding, so add border
6334                         if ( extra !== "padding" ) {
6335                                 val += jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );
6336                         }
6337                 }
6338         }
6339
6340         return val;
6341 }
6342
6343 function getWidthOrHeight( elem, name, extra ) {
6344
6345         // Start with computed style
6346         var valueIsBorderBox,
6347                 styles = getStyles( elem ),
6348                 val = curCSS( elem, name, styles ),
6349                 isBorderBox = jQuery.css( elem, "boxSizing", false, styles ) === "border-box";
6350
6351         // Computed unit is not pixels. Stop here and return.
6352         if ( rnumnonpx.test( val ) ) {
6353                 return val;
6354         }
6355
6356         // Check for style in case a browser which returns unreliable values
6357         // for getComputedStyle silently falls back to the reliable elem.style
6358         valueIsBorderBox = isBorderBox &&
6359                 ( support.boxSizingReliable() || val === elem.style[ name ] );
6360
6361         // Fall back to offsetWidth/Height when value is "auto"
6362         // This happens for inline elements with no explicit setting (gh-3571)
6363         if ( val === "auto" ) {
6364                 val = elem[ "offset" + name[ 0 ].toUpperCase() + name.slice( 1 ) ];
6365         }
6366
6367         // Normalize "", auto, and prepare for extra
6368         val = parseFloat( val ) || 0;
6369
6370         // Use the active box-sizing model to add/subtract irrelevant styles
6371         return ( val +
6372                 augmentWidthOrHeight(
6373                         elem,
6374                         name,
6375                         extra || ( isBorderBox ? "border" : "content" ),
6376                         valueIsBorderBox,
6377                         styles
6378                 )
6379         ) + "px";
6380 }
6381
6382 jQuery.extend( {
6383
6384         // Add in style property hooks for overriding the default
6385         // behavior of getting and setting a style property
6386         cssHooks: {
6387                 opacity: {
6388                         get: function( elem, computed ) {
6389                                 if ( computed ) {
6390
6391                                         // We should always get a number back from opacity
6392                                         var ret = curCSS( elem, "opacity" );
6393                                         return ret === "" ? "1" : ret;
6394                                 }
6395                         }
6396                 }
6397         },
6398
6399         // Don't automatically add "px" to these possibly-unitless properties
6400         cssNumber: {
6401                 "animationIterationCount": true,
6402                 "columnCount": true,
6403                 "fillOpacity": true,
6404                 "flexGrow": true,
6405                 "flexShrink": true,
6406                 "fontWeight": true,
6407                 "lineHeight": true,
6408                 "opacity": true,
6409                 "order": true,
6410                 "orphans": true,
6411                 "widows": true,
6412                 "zIndex": true,
6413                 "zoom": true
6414         },
6415
6416         // Add in properties whose names you wish to fix before
6417         // setting or getting the value
6418         cssProps: {
6419                 "float": "cssFloat"
6420         },
6421
6422         // Get and set the style property on a DOM Node
6423         style: function( elem, name, value, extra ) {
6424
6425                 // Don't set styles on text and comment nodes
6426                 if ( !elem || elem.nodeType === 3 || elem.nodeType === 8 || !elem.style ) {
6427                         return;
6428                 }
6429
6430                 // Make sure that we're working with the right name
6431                 var ret, type, hooks,
6432                         origName = jQuery.camelCase( name ),
6433                         isCustomProp = rcustomProp.test( name ),
6434                         style = elem.style;
6435
6436                 // Make sure that we're working with the right name. We don't
6437                 // want to query the value if it is a CSS custom property
6438                 // since they are user-defined.
6439                 if ( !isCustomProp ) {
6440                         name = finalPropName( origName );
6441                 }
6442
6443                 // Gets hook for the prefixed version, then unprefixed version
6444                 hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ];
6445
6446                 // Check if we're setting a value
6447                 if ( value !== undefined ) {
6448                         type = typeof value;
6449
6450                         // Convert "+=" or "-=" to relative numbers (#7345)
6451                         if ( type === "string" && ( ret = rcssNum.exec( value ) ) && ret[ 1 ] ) {
6452                                 value = adjustCSS( elem, name, ret );
6453
6454                                 // Fixes bug #9237
6455                                 type = "number";
6456                         }
6457
6458                         // Make sure that null and NaN values aren't set (#7116)
6459                         if ( value == null || value !== value ) {
6460                                 return;
6461                         }
6462
6463                         // If a number was passed in, add the unit (except for certain CSS properties)
6464                         if ( type === "number" ) {
6465                                 value += ret && ret[ 3 ] || ( jQuery.cssNumber[ origName ] ? "" : "px" );
6466                         }
6467
6468                         // background-* props affect original clone's values
6469                         if ( !support.clearCloneStyle && value === "" && name.indexOf( "background" ) === 0 ) {
6470                                 style[ name ] = "inherit";
6471                         }
6472
6473                         // If a hook was provided, use that value, otherwise just set the specified value
6474                         if ( !hooks || !( "set" in hooks ) ||
6475                                 ( value = hooks.set( elem, value, extra ) ) !== undefined ) {
6476
6477                                 if ( isCustomProp ) {
6478                                         style.setProperty( name, value );
6479                                 } else {
6480                                         style[ name ] = value;
6481                                 }
6482                         }
6483
6484                 } else {
6485
6486                         // If a hook was provided get the non-computed value from there
6487                         if ( hooks && "get" in hooks &&
6488                                 ( ret = hooks.get( elem, false, extra ) ) !== undefined ) {
6489
6490                                 return ret;
6491                         }
6492
6493                         // Otherwise just get the value from the style object
6494                         return style[ name ];
6495                 }
6496         },
6497
6498         css: function( elem, name, extra, styles ) {
6499                 var val, num, hooks,
6500                         origName = jQuery.camelCase( name ),
6501                         isCustomProp = rcustomProp.test( name );
6502
6503                 // Make sure that we're working with the right name. We don't
6504                 // want to modify the value if it is a CSS custom property
6505                 // since they are user-defined.
6506                 if ( !isCustomProp ) {
6507                         name = finalPropName( origName );
6508                 }
6509
6510                 // Try prefixed name followed by the unprefixed name
6511                 hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ];
6512
6513                 // If a hook was provided get the computed value from there
6514                 if ( hooks && "get" in hooks ) {
6515                         val = hooks.get( elem, true, extra );
6516                 }
6517
6518                 // Otherwise, if a way to get the computed value exists, use that
6519                 if ( val === undefined ) {
6520                         val = curCSS( elem, name, styles );
6521                 }
6522
6523                 // Convert "normal" to computed value
6524                 if ( val === "normal" && name in cssNormalTransform ) {
6525                         val = cssNormalTransform[ name ];
6526                 }
6527
6528                 // Make numeric if forced or a qualifier was provided and val looks numeric
6529                 if ( extra === "" || extra ) {
6530                         num = parseFloat( val );
6531                         return extra === true || isFinite( num ) ? num || 0 : val;
6532                 }
6533
6534                 return val;
6535         }
6536 } );
6537
6538 jQuery.each( [ "height", "width" ], function( i, name ) {
6539         jQuery.cssHooks[ name ] = {
6540                 get: function( elem, computed, extra ) {
6541                         if ( computed ) {
6542
6543                                 // Certain elements can have dimension info if we invisibly show them
6544                                 // but it must have a current display style that would benefit
6545                                 return rdisplayswap.test( jQuery.css( elem, "display" ) ) &&
6546
6547                                         // Support: Safari 8+
6548                                         // Table columns in Safari have non-zero offsetWidth & zero
6549                                         // getBoundingClientRect().width unless display is changed.
6550                                         // Support: IE <=11 only
6551                                         // Running getBoundingClientRect on a disconnected node
6552                                         // in IE throws an error.
6553                                         ( !elem.getClientRects().length || !elem.getBoundingClientRect().width ) ?
6554                                                 swap( elem, cssShow, function() {
6555                                                         return getWidthOrHeight( elem, name, extra );
6556                                                 } ) :
6557                                                 getWidthOrHeight( elem, name, extra );
6558                         }
6559                 },
6560
6561                 set: function( elem, value, extra ) {
6562                         var matches,
6563                                 styles = extra && getStyles( elem ),
6564                                 subtract = extra && augmentWidthOrHeight(
6565                                         elem,
6566                                         name,
6567                                         extra,
6568                                         jQuery.css( elem, "boxSizing", false, styles ) === "border-box",
6569                                         styles
6570                                 );
6571
6572                         // Convert to pixels if value adjustment is needed
6573                         if ( subtract && ( matches = rcssNum.exec( value ) ) &&
6574                                 ( matches[ 3 ] || "px" ) !== "px" ) {
6575
6576                                 elem.style[ name ] = value;
6577                                 value = jQuery.css( elem, name );
6578                         }
6579
6580                         return setPositiveNumber( elem, value, subtract );
6581                 }
6582         };
6583 } );
6584
6585 jQuery.cssHooks.marginLeft = addGetHookIf( support.reliableMarginLeft,
6586         function( elem, computed ) {
6587                 if ( computed ) {
6588                         return ( parseFloat( curCSS( elem, "marginLeft" ) ) ||
6589                                 elem.getBoundingClientRect().left -
6590                                         swap( elem, { marginLeft: 0 }, function() {
6591                                                 return elem.getBoundingClientRect().left;
6592                                         } )
6593                                 ) + "px";
6594                 }
6595         }
6596 );
6597
6598 // These hooks are used by animate to expand properties
6599 jQuery.each( {
6600         margin: "",
6601         padding: "",
6602         border: "Width"
6603 }, function( prefix, suffix ) {
6604         jQuery.cssHooks[ prefix + suffix ] = {
6605                 expand: function( value ) {
6606                         var i = 0,
6607                                 expanded = {},
6608
6609                                 // Assumes a single number if not a string
6610                                 parts = typeof value === "string" ? value.split( " " ) : [ value ];
6611
6612                         for ( ; i < 4; i++ ) {
6613                                 expanded[ prefix + cssExpand[ i ] + suffix ] =
6614                                         parts[ i ] || parts[ i - 2 ] || parts[ 0 ];
6615                         }
6616
6617                         return expanded;
6618                 }
6619         };
6620
6621         if ( !rmargin.test( prefix ) ) {
6622                 jQuery.cssHooks[ prefix + suffix ].set = setPositiveNumber;
6623         }
6624 } );
6625
6626 jQuery.fn.extend( {
6627         css: function( name, value ) {
6628                 return access( this, function( elem, name, value ) {
6629                         var styles, len,
6630                                 map = {},
6631                                 i = 0;
6632
6633                         if ( Array.isArray( name ) ) {
6634                                 styles = getStyles( elem );
6635                                 len = name.length;
6636
6637                                 for ( ; i < len; i++ ) {
6638                                         map[ name[ i ] ] = jQuery.css( elem, name[ i ], false, styles );
6639                                 }
6640
6641                                 return map;
6642                         }
6643
6644                         return value !== undefined ?
6645                                 jQuery.style( elem, name, value ) :
6646                                 jQuery.css( elem, name );
6647                 }, name, value, arguments.length > 1 );
6648         }
6649 } );
6650
6651
6652 function Tween( elem, options, prop, end, easing ) {
6653         return new Tween.prototype.init( elem, options, prop, end, easing );
6654 }
6655 jQuery.Tween = Tween;
6656
6657 Tween.prototype = {
6658         constructor: Tween,
6659         init: function( elem, options, prop, end, easing, unit ) {
6660                 this.elem = elem;
6661                 this.prop = prop;
6662                 this.easing = easing || jQuery.easing._default;
6663                 this.options = options;
6664                 this.start = this.now = this.cur();
6665                 this.end = end;
6666                 this.unit = unit || ( jQuery.cssNumber[ prop ] ? "" : "px" );
6667         },
6668         cur: function() {
6669                 var hooks = Tween.propHooks[ this.prop ];
6670
6671                 return hooks && hooks.get ?
6672                         hooks.get( this ) :
6673                         Tween.propHooks._default.get( this );
6674         },
6675         run: function( percent ) {
6676                 var eased,
6677                         hooks = Tween.propHooks[ this.prop ];
6678
6679                 if ( this.options.duration ) {
6680                         this.pos = eased = jQuery.easing[ this.easing ](
6681                                 percent, this.options.duration * percent, 0, 1, this.options.duration
6682                         );
6683                 } else {
6684                         this.pos = eased = percent;
6685                 }
6686                 this.now = ( this.end - this.start ) * eased + this.start;
6687
6688                 if ( this.options.step ) {
6689                         this.options.step.call( this.elem, this.now, this );
6690                 }
6691
6692                 if ( hooks && hooks.set ) {
6693                         hooks.set( this );
6694                 } else {
6695                         Tween.propHooks._default.set( this );
6696                 }
6697                 return this;
6698         }
6699 };
6700
6701 Tween.prototype.init.prototype = Tween.prototype;
6702
6703 Tween.propHooks = {
6704         _default: {
6705                 get: function( tween ) {
6706                         var result;
6707
6708                         // Use a property on the element directly when it is not a DOM element,
6709                         // or when there is no matching style property that exists.
6710                         if ( tween.elem.nodeType !== 1 ||
6711                                 tween.elem[ tween.prop ] != null && tween.elem.style[ tween.prop ] == null ) {
6712                                 return tween.elem[ tween.prop ];
6713                         }
6714
6715                         // Passing an empty string as a 3rd parameter to .css will automatically
6716                         // attempt a parseFloat and fallback to a string if the parse fails.
6717                         // Simple values such as "10px" are parsed to Float;
6718                         // complex values such as "rotate(1rad)" are returned as-is.
6719                         result = jQuery.css( tween.elem, tween.prop, "" );
6720
6721                         // Empty strings, null, undefined and "auto" are converted to 0.
6722                         return !result || result === "auto" ? 0 : result;
6723                 },
6724                 set: function( tween ) {
6725
6726                         // Use step hook for back compat.
6727                         // Use cssHook if its there.
6728                         // Use .style if available and use plain properties where available.
6729                         if ( jQuery.fx.step[ tween.prop ] ) {
6730                                 jQuery.fx.step[ tween.prop ]( tween );
6731                         } else if ( tween.elem.nodeType === 1 &&
6732                                 ( tween.elem.style[ jQuery.cssProps[ tween.prop ] ] != null ||
6733                                         jQuery.cssHooks[ tween.prop ] ) ) {
6734                                 jQuery.style( tween.elem, tween.prop, tween.now + tween.unit );
6735                         } else {
6736                                 tween.elem[ tween.prop ] = tween.now;
6737                         }
6738                 }
6739         }
6740 };
6741
6742 // Support: IE <=9 only
6743 // Panic based approach to setting things on disconnected nodes
6744 Tween.propHooks.scrollTop = Tween.propHooks.scrollLeft = {
6745         set: function( tween ) {
6746                 if ( tween.elem.nodeType && tween.elem.parentNode ) {
6747                         tween.elem[ tween.prop ] = tween.now;
6748                 }
6749         }
6750 };
6751
6752 jQuery.easing = {
6753         linear: function( p ) {
6754                 return p;
6755         },
6756         swing: function( p ) {
6757                 return 0.5 - Math.cos( p * Math.PI ) / 2;
6758         },
6759         _default: "swing"
6760 };
6761
6762 jQuery.fx = Tween.prototype.init;
6763
6764 // Back compat <1.8 extension point
6765 jQuery.fx.step = {};
6766
6767
6768
6769
6770 var
6771         fxNow, inProgress,
6772         rfxtypes = /^(?:toggle|show|hide)$/,
6773         rrun = /queueHooks$/;
6774
6775 function schedule() {
6776         if ( inProgress ) {
6777                 if ( document.hidden === false && window.requestAnimationFrame ) {
6778                         window.requestAnimationFrame( schedule );
6779                 } else {
6780                         window.setTimeout( schedule, jQuery.fx.interval );
6781                 }
6782
6783                 jQuery.fx.tick();
6784         }
6785 }
6786
6787 // Animations created synchronously will run synchronously
6788 function createFxNow() {
6789         window.setTimeout( function() {
6790                 fxNow = undefined;
6791         } );
6792         return ( fxNow = jQuery.now() );
6793 }
6794
6795 // Generate parameters to create a standard animation
6796 function genFx( type, includeWidth ) {
6797         var which,
6798                 i = 0,
6799                 attrs = { height: type };
6800
6801         // If we include width, step value is 1 to do all cssExpand values,
6802         // otherwise step value is 2 to skip over Left and Right
6803         includeWidth = includeWidth ? 1 : 0;
6804         for ( ; i < 4; i += 2 - includeWidth ) {
6805                 which = cssExpand[ i ];
6806                 attrs[ "margin" + which ] = attrs[ "padding" + which ] = type;
6807         }
6808
6809         if ( includeWidth ) {
6810                 attrs.opacity = attrs.width = type;
6811         }
6812
6813         return attrs;
6814 }
6815
6816 function createTween( value, prop, animation ) {
6817         var tween,
6818                 collection = ( Animation.tweeners[ prop ] || [] ).concat( Animation.tweeners[ "*" ] ),
6819                 index = 0,
6820                 length = collection.length;
6821         for ( ; index < length; index++ ) {
6822                 if ( ( tween = collection[ index ].call( animation, prop, value ) ) ) {
6823
6824                         // We're done with this property
6825                         return tween;
6826                 }
6827         }
6828 }
6829
6830 function defaultPrefilter( elem, props, opts ) {
6831         var prop, value, toggle, hooks, oldfire, propTween, restoreDisplay, display,
6832                 isBox = "width" in props || "height" in props,
6833                 anim = this,
6834                 orig = {},
6835                 style = elem.style,
6836                 hidden = elem.nodeType && isHiddenWithinTree( elem ),
6837                 dataShow = dataPriv.get( elem, "fxshow" );
6838
6839         // Queue-skipping animations hijack the fx hooks
6840         if ( !opts.queue ) {
6841                 hooks = jQuery._queueHooks( elem, "fx" );
6842                 if ( hooks.unqueued == null ) {
6843                         hooks.unqueued = 0;
6844                         oldfire = hooks.empty.fire;
6845                         hooks.empty.fire = function() {
6846                                 if ( !hooks.unqueued ) {
6847                                         oldfire();
6848                                 }
6849                         };
6850                 }
6851                 hooks.unqueued++;
6852
6853                 anim.always( function() {
6854
6855                         // Ensure the complete handler is called before this completes
6856                         anim.always( function() {
6857                                 hooks.unqueued--;
6858                                 if ( !jQuery.queue( elem, "fx" ).length ) {
6859                                         hooks.empty.fire();
6860                                 }
6861                         } );
6862                 } );
6863         }
6864
6865         // Detect show/hide animations
6866         for ( prop in props ) {
6867                 value = props[ prop ];
6868                 if ( rfxtypes.test( value ) ) {
6869                         delete props[ prop ];
6870                         toggle = toggle || value === "toggle";
6871                         if ( value === ( hidden ? "hide" : "show" ) ) {
6872
6873                                 // Pretend to be hidden if this is a "show" and
6874                                 // there is still data from a stopped show/hide
6875                                 if ( value === "show" && dataShow && dataShow[ prop ] !== undefined ) {
6876                                         hidden = true;
6877
6878                                 // Ignore all other no-op show/hide data
6879                                 } else {
6880                                         continue;
6881                                 }
6882                         }
6883                         orig[ prop ] = dataShow && dataShow[ prop ] || jQuery.style( elem, prop );
6884                 }
6885         }
6886
6887         // Bail out if this is a no-op like .hide().hide()
6888         propTween = !jQuery.isEmptyObject( props );
6889         if ( !propTween && jQuery.isEmptyObject( orig ) ) {
6890                 return;
6891         }
6892
6893         // Restrict "overflow" and "display" styles during box animations
6894         if ( isBox && elem.nodeType === 1 ) {
6895
6896                 // Support: IE <=9 - 11, Edge 12 - 13
6897                 // Record all 3 overflow attributes because IE does not infer the shorthand
6898                 // from identically-valued overflowX and overflowY
6899                 opts.overflow = [ style.overflow, style.overflowX, style.overflowY ];
6900
6901                 // Identify a display type, preferring old show/hide data over the CSS cascade
6902                 restoreDisplay = dataShow && dataShow.display;
6903                 if ( restoreDisplay == null ) {
6904                         restoreDisplay = dataPriv.get( elem, "display" );
6905                 }
6906                 display = jQuery.css( elem, "display" );
6907                 if ( display === "none" ) {
6908                         if ( restoreDisplay ) {
6909                                 display = restoreDisplay;
6910                         } else {
6911
6912                                 // Get nonempty value(s) by temporarily forcing visibility
6913                                 showHide( [ elem ], true );
6914                                 restoreDisplay = elem.style.display || restoreDisplay;
6915                                 display = jQuery.css( elem, "display" );
6916                                 showHide( [ elem ] );
6917                         }
6918                 }
6919
6920                 // Animate inline elements as inline-block
6921                 if ( display === "inline" || display === "inline-block" && restoreDisplay != null ) {
6922                         if ( jQuery.css( elem, "float" ) === "none" ) {
6923
6924                                 // Restore the original display value at the end of pure show/hide animations
6925                                 if ( !propTween ) {
6926                                         anim.done( function() {
6927                                                 style.display = restoreDisplay;
6928                                         } );
6929                                         if ( restoreDisplay == null ) {
6930                                                 display = style.display;
6931                                                 restoreDisplay = display === "none" ? "" : display;
6932                                         }
6933                                 }
6934                                 style.display = "inline-block";
6935                         }
6936                 }
6937         }
6938
6939         if ( opts.overflow ) {
6940                 style.overflow = "hidden";
6941                 anim.always( function() {
6942                         style.overflow = opts.overflow[ 0 ];
6943                         style.overflowX = opts.overflow[ 1 ];
6944                         style.overflowY = opts.overflow[ 2 ];
6945                 } );
6946         }
6947
6948         // Implement show/hide animations
6949         propTween = false;
6950         for ( prop in orig ) {
6951
6952                 // General show/hide setup for this element animation
6953                 if ( !propTween ) {
6954                         if ( dataShow ) {
6955                                 if ( "hidden" in dataShow ) {
6956                                         hidden = dataShow.hidden;
6957                                 }
6958                         } else {
6959                                 dataShow = dataPriv.access( elem, "fxshow", { display: restoreDisplay } );
6960                         }
6961
6962                         // Store hidden/visible for toggle so `.stop().toggle()` "reverses"
6963                         if ( toggle ) {
6964                                 dataShow.hidden = !hidden;
6965                         }
6966
6967                         // Show elements before animating them
6968                         if ( hidden ) {
6969                                 showHide( [ elem ], true );
6970                         }
6971
6972                         /* eslint-disable no-loop-func */
6973
6974                         anim.done( function() {
6975
6976                         /* eslint-enable no-loop-func */
6977
6978                                 // The final step of a "hide" animation is actually hiding the element
6979                                 if ( !hidden ) {
6980                                         showHide( [ elem ] );
6981                                 }
6982                                 dataPriv.remove( elem, "fxshow" );
6983                                 for ( prop in orig ) {
6984                                         jQuery.style( elem, prop, orig[ prop ] );
6985                                 }
6986                         } );
6987                 }
6988
6989                 // Per-property setup
6990                 propTween = createTween( hidden ? dataShow[ prop ] : 0, prop, anim );
6991                 if ( !( prop in dataShow ) ) {
6992                         dataShow[ prop ] = propTween.start;
6993                         if ( hidden ) {
6994                                 propTween.end = propTween.start;
6995                                 propTween.start = 0;
6996                         }
6997                 }
6998         }
6999 }
7000
7001 function propFilter( props, specialEasing ) {
7002         var index, name, easing, value, hooks;
7003
7004         // camelCase, specialEasing and expand cssHook pass
7005         for ( index in props ) {
7006                 name = jQuery.camelCase( index );
7007                 easing = specialEasing[ name ];
7008                 value = props[ index ];
7009                 if ( Array.isArray( value ) ) {
7010                         easing = value[ 1 ];
7011                         value = props[ index ] = value[ 0 ];
7012                 }
7013
7014                 if ( index !== name ) {
7015                         props[ name ] = value;
7016                         delete props[ index ];
7017                 }
7018
7019                 hooks = jQuery.cssHooks[ name ];
7020                 if ( hooks && "expand" in hooks ) {
7021                         value = hooks.expand( value );
7022                         delete props[ name ];
7023
7024                         // Not quite $.extend, this won't overwrite existing keys.
7025                         // Reusing 'index' because we have the correct "name"
7026                         for ( index in value ) {
7027                                 if ( !( index in props ) ) {
7028                                         props[ index ] = value[ index ];
7029                                         specialEasing[ index ] = easing;
7030                                 }
7031                         }
7032                 } else {
7033                         specialEasing[ name ] = easing;
7034                 }
7035         }
7036 }
7037
7038 function Animation( elem, properties, options ) {
7039         var result,
7040                 stopped,
7041                 index = 0,
7042                 length = Animation.prefilters.length,
7043                 deferred = jQuery.Deferred().always( function() {
7044
7045                         // Don't match elem in the :animated selector
7046                         delete tick.elem;
7047                 } ),
7048                 tick = function() {
7049                         if ( stopped ) {
7050                                 return false;
7051                         }
7052                         var currentTime = fxNow || createFxNow(),
7053                                 remaining = Math.max( 0, animation.startTime + animation.duration - currentTime ),
7054
7055                                 // Support: Android 2.3 only
7056                                 // Archaic crash bug won't allow us to use `1 - ( 0.5 || 0 )` (#12497)
7057                                 temp = remaining / animation.duration || 0,
7058                                 percent = 1 - temp,
7059                                 index = 0,
7060                                 length = animation.tweens.length;
7061
7062                         for ( ; index < length; index++ ) {
7063                                 animation.tweens[ index ].run( percent );
7064                         }
7065
7066                         deferred.notifyWith( elem, [ animation, percent, remaining ] );
7067
7068                         // If there's more to do, yield
7069                         if ( percent < 1 && length ) {
7070                                 return remaining;
7071                         }
7072
7073                         // If this was an empty animation, synthesize a final progress notification
7074                         if ( !length ) {
7075                                 deferred.notifyWith( elem, [ animation, 1, 0 ] );
7076                         }
7077
7078                         // Resolve the animation and report its conclusion
7079                         deferred.resolveWith( elem, [ animation ] );
7080                         return false;
7081                 },
7082                 animation = deferred.promise( {
7083                         elem: elem,
7084                         props: jQuery.extend( {}, properties ),
7085                         opts: jQuery.extend( true, {
7086                                 specialEasing: {},
7087                                 easing: jQuery.easing._default
7088                         }, options ),
7089                         originalProperties: properties,
7090                         originalOptions: options,
7091                         startTime: fxNow || createFxNow(),
7092                         duration: options.duration,
7093                         tweens: [],
7094                         createTween: function( prop, end ) {
7095                                 var tween = jQuery.Tween( elem, animation.opts, prop, end,
7096                                                 animation.opts.specialEasing[ prop ] || animation.opts.easing );
7097                                 animation.tweens.push( tween );
7098                                 return tween;
7099                         },
7100                         stop: function( gotoEnd ) {
7101                                 var index = 0,
7102
7103                                         // If we are going to the end, we want to run all the tweens
7104                                         // otherwise we skip this part
7105                                         length = gotoEnd ? animation.tweens.length : 0;
7106                                 if ( stopped ) {
7107                                         return this;
7108                                 }
7109                                 stopped = true;
7110                                 for ( ; index < length; index++ ) {
7111                                         animation.tweens[ index ].run( 1 );
7112                                 }
7113
7114                                 // Resolve when we played the last frame; otherwise, reject
7115                                 if ( gotoEnd ) {
7116                                         deferred.notifyWith( elem, [ animation, 1, 0 ] );
7117                                         deferred.resolveWith( elem, [ animation, gotoEnd ] );
7118                                 } else {
7119                                         deferred.rejectWith( elem, [ animation, gotoEnd ] );
7120                                 }
7121                                 return this;
7122                         }
7123                 } ),
7124                 props = animation.props;
7125
7126         propFilter( props, animation.opts.specialEasing );
7127
7128         for ( ; index < length; index++ ) {
7129                 result = Animation.prefilters[ index ].call( animation, elem, props, animation.opts );
7130                 if ( result ) {
7131                         if ( jQuery.isFunction( result.stop ) ) {
7132                                 jQuery._queueHooks( animation.elem, animation.opts.queue ).stop =
7133                                         jQuery.proxy( result.stop, result );
7134                         }
7135                         return result;
7136                 }
7137         }
7138
7139         jQuery.map( props, createTween, animation );
7140
7141         if ( jQuery.isFunction( animation.opts.start ) ) {
7142                 animation.opts.start.call( elem, animation );
7143         }
7144
7145         // Attach callbacks from options
7146         animation
7147                 .progress( animation.opts.progress )
7148                 .done( animation.opts.done, animation.opts.complete )
7149                 .fail( animation.opts.fail )
7150                 .always( animation.opts.always );
7151
7152         jQuery.fx.timer(
7153                 jQuery.extend( tick, {
7154                         elem: elem,
7155                         anim: animation,
7156                         queue: animation.opts.queue
7157                 } )
7158         );
7159
7160         return animation;
7161 }
7162
7163 jQuery.Animation = jQuery.extend( Animation, {
7164
7165         tweeners: {
7166                 "*": [ function( prop, value ) {
7167                         var tween = this.createTween( prop, value );
7168                         adjustCSS( tween.elem, prop, rcssNum.exec( value ), tween );
7169                         return tween;
7170                 } ]
7171         },
7172
7173         tweener: function( props, callback ) {
7174                 if ( jQuery.isFunction( props ) ) {
7175                         callback = props;
7176                         props = [ "*" ];
7177                 } else {
7178                         props = props.match( rnothtmlwhite );
7179                 }
7180
7181                 var prop,
7182                         index = 0,
7183                         length = props.length;
7184
7185                 for ( ; index < length; index++ ) {
7186                         prop = props[ index ];
7187                         Animation.tweeners[ prop ] = Animation.tweeners[ prop ] || [];
7188                         Animation.tweeners[ prop ].unshift( callback );
7189                 }
7190         },
7191
7192         prefilters: [ defaultPrefilter ],
7193
7194         prefilter: function( callback, prepend ) {
7195                 if ( prepend ) {
7196                         Animation.prefilters.unshift( callback );
7197                 } else {
7198                         Animation.prefilters.push( callback );
7199                 }
7200         }
7201 } );
7202
7203 jQuery.speed = function( speed, easing, fn ) {
7204         var opt = speed && typeof speed === "object" ? jQuery.extend( {}, speed ) : {
7205                 complete: fn || !fn && easing ||
7206                         jQuery.isFunction( speed ) && speed,
7207                 duration: speed,
7208                 easing: fn && easing || easing && !jQuery.isFunction( easing ) && easing
7209         };
7210
7211         // Go to the end state if fx are off
7212         if ( jQuery.fx.off ) {
7213                 opt.duration = 0;
7214
7215         } else {
7216                 if ( typeof opt.duration !== "number" ) {
7217                         if ( opt.duration in jQuery.fx.speeds ) {
7218                                 opt.duration = jQuery.fx.speeds[ opt.duration ];
7219
7220                         } else {
7221                                 opt.duration = jQuery.fx.speeds._default;
7222                         }
7223                 }
7224         }
7225
7226         // Normalize opt.queue - true/undefined/null -> "fx"
7227         if ( opt.queue == null || opt.queue === true ) {
7228                 opt.queue = "fx";
7229         }
7230
7231         // Queueing
7232         opt.old = opt.complete;
7233
7234         opt.complete = function() {
7235                 if ( jQuery.isFunction( opt.old ) ) {
7236                         opt.old.call( this );
7237                 }
7238
7239                 if ( opt.queue ) {
7240                         jQuery.dequeue( this, opt.queue );
7241                 }
7242         };
7243
7244         return opt;
7245 };
7246
7247 jQuery.fn.extend( {
7248         fadeTo: function( speed, to, easing, callback ) {
7249
7250                 // Show any hidden elements after setting opacity to 0
7251                 return this.filter( isHiddenWithinTree ).css( "opacity", 0 ).show()
7252
7253                         // Animate to the value specified
7254                         .end().animate( { opacity: to }, speed, easing, callback );
7255         },
7256         animate: function( prop, speed, easing, callback ) {
7257                 var empty = jQuery.isEmptyObject( prop ),
7258                         optall = jQuery.speed( speed, easing, callback ),
7259                         doAnimation = function() {
7260
7261                                 // Operate on a copy of prop so per-property easing won't be lost
7262                                 var anim = Animation( this, jQuery.extend( {}, prop ), optall );
7263
7264                                 // Empty animations, or finishing resolves immediately
7265                                 if ( empty || dataPriv.get( this, "finish" ) ) {
7266                                         anim.stop( true );
7267                                 }
7268                         };
7269                         doAnimation.finish = doAnimation;
7270
7271                 return empty || optall.queue === false ?
7272                         this.each( doAnimation ) :
7273                         this.queue( optall.queue, doAnimation );
7274         },
7275         stop: function( type, clearQueue, gotoEnd ) {
7276                 var stopQueue = function( hooks ) {
7277                         var stop = hooks.stop;
7278                         delete hooks.stop;
7279                         stop( gotoEnd );
7280                 };
7281
7282                 if ( typeof type !== "string" ) {
7283                         gotoEnd = clearQueue;
7284                         clearQueue = type;
7285                         type = undefined;
7286                 }
7287                 if ( clearQueue && type !== false ) {
7288                         this.queue( type || "fx", [] );
7289                 }
7290
7291                 return this.each( function() {
7292                         var dequeue = true,
7293                                 index = type != null && type + "queueHooks",
7294                                 timers = jQuery.timers,
7295                                 data = dataPriv.get( this );
7296
7297                         if ( index ) {
7298                                 if ( data[ index ] && data[ index ].stop ) {
7299                                         stopQueue( data[ index ] );
7300                                 }
7301                         } else {
7302                                 for ( index in data ) {
7303                                         if ( data[ index ] && data[ index ].stop && rrun.test( index ) ) {
7304                                                 stopQueue( data[ index ] );
7305                                         }
7306                                 }
7307                         }
7308
7309                         for ( index = timers.length; index--; ) {
7310                                 if ( timers[ index ].elem === this &&
7311                                         ( type == null || timers[ index ].queue === type ) ) {
7312
7313                                         timers[ index ].anim.stop( gotoEnd );
7314                                         dequeue = false;
7315                                         timers.splice( index, 1 );
7316                                 }
7317                         }
7318
7319                         // Start the next in the queue if the last step wasn't forced.
7320                         // Timers currently will call their complete callbacks, which
7321                         // will dequeue but only if they were gotoEnd.
7322                         if ( dequeue || !gotoEnd ) {
7323                                 jQuery.dequeue( this, type );
7324                         }
7325                 } );
7326         },
7327         finish: function( type ) {
7328                 if ( type !== false ) {
7329                         type = type || "fx";
7330                 }
7331                 return this.each( function() {
7332                         var index,
7333                                 data = dataPriv.get( this ),
7334                                 queue = data[ type + "queue" ],
7335                                 hooks = data[ type + "queueHooks" ],
7336                                 timers = jQuery.timers,
7337                                 length = queue ? queue.length : 0;
7338
7339                         // Enable finishing flag on private data
7340                         data.finish = true;
7341
7342                         // Empty the queue first
7343                         jQuery.queue( this, type, [] );
7344
7345                         if ( hooks && hooks.stop ) {
7346                                 hooks.stop.call( this, true );
7347                         }
7348
7349                         // Look for any active animations, and finish them
7350                         for ( index = timers.length; index--; ) {
7351                                 if ( timers[ index ].elem === this && timers[ index ].queue === type ) {
7352                                         timers[ index ].anim.stop( true );
7353                                         timers.splice( index, 1 );
7354                                 }
7355                         }
7356
7357                         // Look for any animations in the old queue and finish them
7358                         for ( index = 0; index < length; index++ ) {
7359                                 if ( queue[ index ] && queue[ index ].finish ) {
7360                                         queue[ index ].finish.call( this );
7361                                 }
7362                         }
7363
7364                         // Turn off finishing flag
7365                         delete data.finish;
7366                 } );
7367         }
7368 } );
7369
7370 jQuery.each( [ "toggle", "show", "hide" ], function( i, name ) {
7371         var cssFn = jQuery.fn[ name ];
7372         jQuery.fn[ name ] = function( speed, easing, callback ) {
7373                 return speed == null || typeof speed === "boolean" ?
7374                         cssFn.apply( this, arguments ) :
7375                         this.animate( genFx( name, true ), speed, easing, callback );
7376         };
7377 } );
7378
7379 // Generate shortcuts for custom animations
7380 jQuery.each( {
7381         slideDown: genFx( "show" ),
7382         slideUp: genFx( "hide" ),
7383         slideToggle: genFx( "toggle" ),
7384         fadeIn: { opacity: "show" },
7385         fadeOut: { opacity: "hide" },
7386         fadeToggle: { opacity: "toggle" }
7387 }, function( name, props ) {
7388         jQuery.fn[ name ] = function( speed, easing, callback ) {
7389                 return this.animate( props, speed, easing, callback );
7390         };
7391 } );
7392
7393 jQuery.timers = [];
7394 jQuery.fx.tick = function() {
7395         var timer,
7396                 i = 0,
7397                 timers = jQuery.timers;
7398
7399         fxNow = jQuery.now();
7400
7401         for ( ; i < timers.length; i++ ) {
7402                 timer = timers[ i ];
7403
7404                 // Run the timer and safely remove it when done (allowing for external removal)
7405                 if ( !timer() && timers[ i ] === timer ) {
7406                         timers.splice( i--, 1 );
7407                 }
7408         }
7409
7410         if ( !timers.length ) {
7411                 jQuery.fx.stop();
7412         }
7413         fxNow = undefined;
7414 };
7415
7416 jQuery.fx.timer = function( timer ) {
7417         jQuery.timers.push( timer );
7418         jQuery.fx.start();
7419 };
7420
7421 jQuery.fx.interval = 13;
7422 jQuery.fx.start = function() {
7423         if ( inProgress ) {
7424                 return;
7425         }
7426
7427         inProgress = true;
7428         schedule();
7429 };
7430
7431 jQuery.fx.stop = function() {
7432         inProgress = null;
7433 };
7434
7435 jQuery.fx.speeds = {
7436         slow: 600,
7437         fast: 200,
7438
7439         // Default speed
7440         _default: 400
7441 };
7442
7443
7444 // Based off of the plugin by Clint Helfers, with permission.
7445 // https://web.archive.org/web/20100324014747/http://blindsignals.com/index.php/2009/07/jquery-delay/
7446 jQuery.fn.delay = function( time, type ) {
7447         time = jQuery.fx ? jQuery.fx.speeds[ time ] || time : time;
7448         type = type || "fx";
7449
7450         return this.queue( type, function( next, hooks ) {
7451                 var timeout = window.setTimeout( next, time );
7452                 hooks.stop = function() {
7453                         window.clearTimeout( timeout );
7454                 };
7455         } );
7456 };
7457
7458
7459 ( function() {
7460         var input = document.createElement( "input" ),
7461                 select = document.createElement( "select" ),
7462                 opt = select.appendChild( document.createElement( "option" ) );
7463
7464         input.type = "checkbox";
7465
7466         // Support: Android <=4.3 only
7467         // Default value for a checkbox should be "on"
7468         support.checkOn = input.value !== "";
7469
7470         // Support: IE <=11 only
7471         // Must access selectedIndex to make default options select
7472         support.optSelected = opt.selected;
7473
7474         // Support: IE <=11 only
7475         // An input loses its value after becoming a radio
7476         input = document.createElement( "input" );
7477         input.value = "t";
7478         input.type = "radio";
7479         support.radioValue = input.value === "t";
7480 } )();
7481
7482
7483 var boolHook,
7484         attrHandle = jQuery.expr.attrHandle;
7485
7486 jQuery.fn.extend( {
7487         attr: function( name, value ) {
7488                 return access( this, jQuery.attr, name, value, arguments.length > 1 );
7489         },
7490
7491         removeAttr: function( name ) {
7492                 return this.each( function() {
7493                         jQuery.removeAttr( this, name );
7494                 } );
7495         }
7496 } );
7497
7498 jQuery.extend( {
7499         attr: function( elem, name, value ) {
7500                 var ret, hooks,
7501                         nType = elem.nodeType;
7502
7503                 // Don't get/set attributes on text, comment and attribute nodes
7504                 if ( nType === 3 || nType === 8 || nType === 2 ) {
7505                         return;
7506                 }
7507
7508                 // Fallback to prop when attributes are not supported
7509                 if ( typeof elem.getAttribute === "undefined" ) {
7510                         return jQuery.prop( elem, name, value );
7511                 }
7512
7513                 // Attribute hooks are determined by the lowercase version
7514                 // Grab necessary hook if one is defined
7515                 if ( nType !== 1 || !jQuery.isXMLDoc( elem ) ) {
7516                         hooks = jQuery.attrHooks[ name.toLowerCase() ] ||
7517                                 ( jQuery.expr.match.bool.test( name ) ? boolHook : undefined );
7518                 }
7519
7520                 if ( value !== undefined ) {
7521                         if ( value === null ) {
7522                                 jQuery.removeAttr( elem, name );
7523                                 return;
7524                         }
7525
7526                         if ( hooks && "set" in hooks &&
7527                                 ( ret = hooks.set( elem, value, name ) ) !== undefined ) {
7528                                 return ret;
7529                         }
7530
7531                         elem.setAttribute( name, value + "" );
7532                         return value;
7533                 }
7534
7535                 if ( hooks && "get" in hooks && ( ret = hooks.get( elem, name ) ) !== null ) {
7536                         return ret;
7537                 }
7538
7539                 ret = jQuery.find.attr( elem, name );
7540
7541                 // Non-existent attributes return null, we normalize to undefined
7542                 return ret == null ? undefined : ret;
7543         },
7544
7545         attrHooks: {
7546                 type: {
7547                         set: function( elem, value ) {
7548                                 if ( !support.radioValue && value === "radio" &&
7549                                         nodeName( elem, "input" ) ) {
7550                                         var val = elem.value;
7551                                         elem.setAttribute( "type", value );
7552                                         if ( val ) {
7553                                                 elem.value = val;
7554                                         }
7555                                         return value;
7556                                 }
7557                         }
7558                 }
7559         },
7560
7561         removeAttr: function( elem, value ) {
7562                 var name,
7563                         i = 0,
7564
7565                         // Attribute names can contain non-HTML whitespace characters
7566                         // https://html.spec.whatwg.org/multipage/syntax.html#attributes-2
7567                         attrNames = value && value.match( rnothtmlwhite );
7568
7569                 if ( attrNames && elem.nodeType === 1 ) {
7570                         while ( ( name = attrNames[ i++ ] ) ) {
7571                                 elem.removeAttribute( name );
7572                         }
7573                 }
7574         }
7575 } );
7576
7577 // Hooks for boolean attributes
7578 boolHook = {
7579         set: function( elem, value, name ) {
7580                 if ( value === false ) {
7581
7582                         // Remove boolean attributes when set to false
7583                         jQuery.removeAttr( elem, name );
7584                 } else {
7585                         elem.setAttribute( name, name );
7586                 }
7587                 return name;
7588         }
7589 };
7590
7591 jQuery.each( jQuery.expr.match.bool.source.match( /\w+/g ), function( i, name ) {
7592         var getter = attrHandle[ name ] || jQuery.find.attr;
7593
7594         attrHandle[ name ] = function( elem, name, isXML ) {
7595                 var ret, handle,
7596                         lowercaseName = name.toLowerCase();
7597
7598                 if ( !isXML ) {
7599
7600                         // Avoid an infinite loop by temporarily removing this function from the getter
7601                         handle = attrHandle[ lowercaseName ];
7602                         attrHandle[ lowercaseName ] = ret;
7603                         ret = getter( elem, name, isXML ) != null ?
7604                                 lowercaseName :
7605                                 null;
7606                         attrHandle[ lowercaseName ] = handle;
7607                 }
7608                 return ret;
7609         };
7610 } );
7611
7612
7613
7614
7615 var rfocusable = /^(?:input|select|textarea|button)$/i,
7616         rclickable = /^(?:a|area)$/i;
7617
7618 jQuery.fn.extend( {
7619         prop: function( name, value ) {
7620                 return access( this, jQuery.prop, name, value, arguments.length > 1 );
7621         },
7622
7623         removeProp: function( name ) {
7624                 return this.each( function() {
7625                         delete this[ jQuery.propFix[ name ] || name ];
7626                 } );
7627         }
7628 } );
7629
7630 jQuery.extend( {
7631         prop: function( elem, name, value ) {
7632                 var ret, hooks,
7633                         nType = elem.nodeType;
7634
7635                 // Don't get/set properties on text, comment and attribute nodes
7636                 if ( nType === 3 || nType === 8 || nType === 2 ) {
7637                         return;
7638                 }
7639
7640                 if ( nType !== 1 || !jQuery.isXMLDoc( elem ) ) {
7641
7642                         // Fix name and attach hooks
7643                         name = jQuery.propFix[ name ] || name;
7644                         hooks = jQuery.propHooks[ name ];
7645                 }
7646
7647                 if ( value !== undefined ) {
7648                         if ( hooks && "set" in hooks &&
7649                                 ( ret = hooks.set( elem, value, name ) ) !== undefined ) {
7650                                 return ret;
7651                         }
7652
7653                         return ( elem[ name ] = value );
7654                 }
7655
7656                 if ( hooks && "get" in hooks && ( ret = hooks.get( elem, name ) ) !== null ) {
7657                         return ret;
7658                 }
7659
7660                 return elem[ name ];
7661         },
7662
7663         propHooks: {
7664                 tabIndex: {
7665                         get: function( elem ) {
7666
7667                                 // Support: IE <=9 - 11 only
7668                                 // elem.tabIndex doesn't always return the
7669                                 // correct value when it hasn't been explicitly set
7670                                 // https://web.archive.org/web/20141116233347/http://fluidproject.org/blog/2008/01/09/getting-setting-and-removing-tabindex-values-with-javascript/
7671                                 // Use proper attribute retrieval(#12072)
7672                                 var tabindex = jQuery.find.attr( elem, "tabindex" );
7673
7674                                 if ( tabindex ) {
7675                                         return parseInt( tabindex, 10 );
7676                                 }
7677
7678                                 if (
7679                                         rfocusable.test( elem.nodeName ) ||
7680                                         rclickable.test( elem.nodeName ) &&
7681                                         elem.href
7682                                 ) {
7683                                         return 0;
7684                                 }
7685
7686                                 return -1;
7687                         }
7688                 }
7689         },
7690
7691         propFix: {
7692                 "for": "htmlFor",
7693                 "class": "className"
7694         }
7695 } );
7696
7697 // Support: IE <=11 only
7698 // Accessing the selectedIndex property
7699 // forces the browser to respect setting selected
7700 // on the option
7701 // The getter ensures a default option is selected
7702 // when in an optgroup
7703 // eslint rule "no-unused-expressions" is disabled for this code
7704 // since it considers such accessions noop
7705 if ( !support.optSelected ) {
7706         jQuery.propHooks.selected = {
7707                 get: function( elem ) {
7708
7709                         /* eslint no-unused-expressions: "off" */
7710
7711                         var parent = elem.parentNode;
7712                         if ( parent && parent.parentNode ) {
7713                                 parent.parentNode.selectedIndex;
7714                         }
7715                         return null;
7716                 },
7717                 set: function( elem ) {
7718
7719                         /* eslint no-unused-expressions: "off" */
7720
7721                         var parent = elem.parentNode;
7722                         if ( parent ) {
7723                                 parent.selectedIndex;
7724
7725                                 if ( parent.parentNode ) {
7726                                         parent.parentNode.selectedIndex;
7727                                 }
7728                         }
7729                 }
7730         };
7731 }
7732
7733 jQuery.each( [
7734         "tabIndex",
7735         "readOnly",
7736         "maxLength",
7737         "cellSpacing",
7738         "cellPadding",
7739         "rowSpan",
7740         "colSpan",
7741         "useMap",
7742         "frameBorder",
7743         "contentEditable"
7744 ], function() {
7745         jQuery.propFix[ this.toLowerCase() ] = this;
7746 } );
7747
7748
7749
7750
7751         // Strip and collapse whitespace according to HTML spec
7752         // https://html.spec.whatwg.org/multipage/infrastructure.html#strip-and-collapse-whitespace
7753         function stripAndCollapse( value ) {
7754                 var tokens = value.match( rnothtmlwhite ) || [];
7755                 return tokens.join( " " );
7756         }
7757
7758
7759 function getClass( elem ) {
7760         return elem.getAttribute && elem.getAttribute( "class" ) || "";
7761 }
7762
7763 jQuery.fn.extend( {
7764         addClass: function( value ) {
7765                 var classes, elem, cur, curValue, clazz, j, finalValue,
7766                         i = 0;
7767
7768                 if ( jQuery.isFunction( value ) ) {
7769                         return this.each( function( j ) {
7770                                 jQuery( this ).addClass( value.call( this, j, getClass( this ) ) );
7771                         } );
7772                 }
7773
7774                 if ( typeof value === "string" && value ) {
7775                         classes = value.match( rnothtmlwhite ) || [];
7776
7777                         while ( ( elem = this[ i++ ] ) ) {
7778                                 curValue = getClass( elem );
7779                                 cur = elem.nodeType === 1 && ( " " + stripAndCollapse( curValue ) + " " );
7780
7781                                 if ( cur ) {
7782                                         j = 0;
7783                                         while ( ( clazz = classes[ j++ ] ) ) {
7784                                                 if ( cur.indexOf( " " + clazz + " " ) < 0 ) {
7785                                                         cur += clazz + " ";
7786                                                 }
7787                                         }
7788
7789                                         // Only assign if different to avoid unneeded rendering.
7790                                         finalValue = stripAndCollapse( cur );
7791                                         if ( curValue !== finalValue ) {
7792                                                 elem.setAttribute( "class", finalValue );
7793                                         }
7794                                 }
7795                         }
7796                 }
7797
7798                 return this;
7799         },
7800
7801         removeClass: function( value ) {
7802                 var classes, elem, cur, curValue, clazz, j, finalValue,
7803                         i = 0;
7804
7805                 if ( jQuery.isFunction( value ) ) {
7806                         return this.each( function( j ) {
7807                                 jQuery( this ).removeClass( value.call( this, j, getClass( this ) ) );
7808                         } );
7809                 }
7810
7811                 if ( !arguments.length ) {
7812                         return this.attr( "class", "" );
7813                 }
7814
7815                 if ( typeof value === "string" && value ) {
7816                         classes = value.match( rnothtmlwhite ) || [];
7817
7818                         while ( ( elem = this[ i++ ] ) ) {
7819                                 curValue = getClass( elem );
7820
7821                                 // This expression is here for better compressibility (see addClass)
7822                                 cur = elem.nodeType === 1 && ( " " + stripAndCollapse( curValue ) + " " );
7823
7824                                 if ( cur ) {
7825                                         j = 0;
7826                                         while ( ( clazz = classes[ j++ ] ) ) {
7827
7828                                                 // Remove *all* instances
7829                                                 while ( cur.indexOf( " " + clazz + " " ) > -1 ) {
7830                                                         cur = cur.replace( " " + clazz + " ", " " );
7831                                                 }
7832                                         }
7833
7834                                         // Only assign if different to avoid unneeded rendering.
7835                                         finalValue = stripAndCollapse( cur );
7836                                         if ( curValue !== finalValue ) {
7837                                                 elem.setAttribute( "class", finalValue );
7838                                         }
7839                                 }
7840                         }
7841                 }
7842
7843                 return this;
7844         },
7845
7846         toggleClass: function( value, stateVal ) {
7847                 var type = typeof value;
7848
7849                 if ( typeof stateVal === "boolean" && type === "string" ) {
7850                         return stateVal ? this.addClass( value ) : this.removeClass( value );
7851                 }
7852
7853                 if ( jQuery.isFunction( value ) ) {
7854                         return this.each( function( i ) {
7855                                 jQuery( this ).toggleClass(
7856                                         value.call( this, i, getClass( this ), stateVal ),
7857                                         stateVal
7858                                 );
7859                         } );
7860                 }
7861
7862                 return this.each( function() {
7863                         var className, i, self, classNames;
7864
7865                         if ( type === "string" ) {
7866
7867                                 // Toggle individual class names
7868                                 i = 0;
7869                                 self = jQuery( this );
7870                                 classNames = value.match( rnothtmlwhite ) || [];
7871
7872                                 while ( ( className = classNames[ i++ ] ) ) {
7873
7874                                         // Check each className given, space separated list
7875                                         if ( self.hasClass( className ) ) {
7876                                                 self.removeClass( className );
7877                                         } else {
7878                                                 self.addClass( className );
7879                                         }
7880                                 }
7881
7882                         // Toggle whole class name
7883                         } else if ( value === undefined || type === "boolean" ) {
7884                                 className = getClass( this );
7885                                 if ( className ) {
7886
7887                                         // Store className if set
7888                                         dataPriv.set( this, "__className__", className );
7889                                 }
7890
7891                                 // If the element has a class name or if we're passed `false`,
7892                                 // then remove the whole classname (if there was one, the above saved it).
7893                                 // Otherwise bring back whatever was previously saved (if anything),
7894                                 // falling back to the empty string if nothing was stored.
7895                                 if ( this.setAttribute ) {
7896                                         this.setAttribute( "class",
7897                                                 className || value === false ?
7898                                                 "" :
7899                                                 dataPriv.get( this, "__className__" ) || ""
7900                                         );
7901                                 }
7902                         }
7903                 } );
7904         },
7905
7906         hasClass: function( selector ) {
7907                 var className, elem,
7908                         i = 0;
7909
7910                 className = " " + selector + " ";
7911                 while ( ( elem = this[ i++ ] ) ) {
7912                         if ( elem.nodeType === 1 &&
7913                                 ( " " + stripAndCollapse( getClass( elem ) ) + " " ).indexOf( className ) > -1 ) {
7914                                         return true;
7915                         }
7916                 }
7917
7918                 return false;
7919         }
7920 } );
7921
7922
7923
7924
7925 var rreturn = /\r/g;
7926
7927 jQuery.fn.extend( {
7928         val: function( value ) {
7929                 var hooks, ret, isFunction,
7930                         elem = this[ 0 ];
7931
7932                 if ( !arguments.length ) {
7933                         if ( elem ) {
7934                                 hooks = jQuery.valHooks[ elem.type ] ||
7935                                         jQuery.valHooks[ elem.nodeName.toLowerCase() ];
7936
7937                                 if ( hooks &&
7938                                         "get" in hooks &&
7939                                         ( ret = hooks.get( elem, "value" ) ) !== undefined
7940                                 ) {
7941                                         return ret;
7942                                 }
7943
7944                                 ret = elem.value;
7945
7946                                 // Handle most common string cases
7947                                 if ( typeof ret === "string" ) {
7948                                         return ret.replace( rreturn, "" );
7949                                 }
7950
7951                                 // Handle cases where value is null/undef or number
7952                                 return ret == null ? "" : ret;
7953                         }
7954
7955                         return;
7956                 }
7957
7958                 isFunction = jQuery.isFunction( value );
7959
7960                 return this.each( function( i ) {
7961                         var val;
7962
7963                         if ( this.nodeType !== 1 ) {
7964                                 return;
7965                         }
7966
7967                         if ( isFunction ) {
7968                                 val = value.call( this, i, jQuery( this ).val() );
7969                         } else {
7970                                 val = value;
7971                         }
7972
7973                         // Treat null/undefined as ""; convert numbers to string
7974                         if ( val == null ) {
7975                                 val = "";
7976
7977                         } else if ( typeof val === "number" ) {
7978                                 val += "";
7979
7980                         } else if ( Array.isArray( val ) ) {
7981                                 val = jQuery.map( val, function( value ) {
7982                                         return value == null ? "" : value + "";
7983                                 } );
7984                         }
7985
7986                         hooks = jQuery.valHooks[ this.type ] || jQuery.valHooks[ this.nodeName.toLowerCase() ];
7987
7988                         // If set returns undefined, fall back to normal setting
7989                         if ( !hooks || !( "set" in hooks ) || hooks.set( this, val, "value" ) === undefined ) {
7990                                 this.value = val;
7991                         }
7992                 } );
7993         }
7994 } );
7995
7996 jQuery.extend( {
7997         valHooks: {
7998                 option: {
7999                         get: function( elem ) {
8000
8001                                 var val = jQuery.find.attr( elem, "value" );
8002                                 return val != null ?
8003                                         val :
8004
8005                                         // Support: IE <=10 - 11 only
8006                                         // option.text throws exceptions (#14686, #14858)
8007                                         // Strip and collapse whitespace
8008                                         // https://html.spec.whatwg.org/#strip-and-collapse-whitespace
8009                                         stripAndCollapse( jQuery.text( elem ) );
8010                         }
8011                 },
8012                 select: {
8013                         get: function( elem ) {
8014                                 var value, option, i,
8015                                         options = elem.options,
8016                                         index = elem.selectedIndex,
8017                                         one = elem.type === "select-one",
8018                                         values = one ? null : [],
8019                                         max = one ? index + 1 : options.length;
8020
8021                                 if ( index < 0 ) {
8022                                         i = max;
8023
8024                                 } else {
8025                                         i = one ? index : 0;
8026                                 }
8027
8028                                 // Loop through all the selected options
8029                                 for ( ; i < max; i++ ) {
8030                                         option = options[ i ];
8031
8032                                         // Support: IE <=9 only
8033                                         // IE8-9 doesn't update selected after form reset (#2551)
8034                                         if ( ( option.selected || i === index ) &&
8035
8036                                                         // Don't return options that are disabled or in a disabled optgroup
8037                                                         !option.disabled &&
8038                                                         ( !option.parentNode.disabled ||
8039                                                                 !nodeName( option.parentNode, "optgroup" ) ) ) {
8040
8041                                                 // Get the specific value for the option
8042                                                 value = jQuery( option ).val();
8043
8044                                                 // We don't need an array for one selects
8045                                                 if ( one ) {
8046                                                         return value;
8047                                                 }
8048
8049                                                 // Multi-Selects return an array
8050                                                 values.push( value );
8051                                         }
8052                                 }
8053
8054                                 return values;
8055                         },
8056
8057                         set: function( elem, value ) {
8058                                 var optionSet, option,
8059                                         options = elem.options,
8060                                         values = jQuery.makeArray( value ),
8061                                         i = options.length;
8062
8063                                 while ( i-- ) {
8064                                         option = options[ i ];
8065
8066                                         /* eslint-disable no-cond-assign */
8067
8068                                         if ( option.selected =
8069                                                 jQuery.inArray( jQuery.valHooks.option.get( option ), values ) > -1
8070                                         ) {
8071                                                 optionSet = true;
8072                                         }
8073
8074                                         /* eslint-enable no-cond-assign */
8075                                 }
8076
8077                                 // Force browsers to behave consistently when non-matching value is set
8078                                 if ( !optionSet ) {
8079                                         elem.selectedIndex = -1;
8080                                 }
8081                                 return values;
8082                         }
8083                 }
8084         }
8085 } );
8086
8087 // Radios and checkboxes getter/setter
8088 jQuery.each( [ "radio", "checkbox" ], function() {
8089         jQuery.valHooks[ this ] = {
8090                 set: function( elem, value ) {
8091                         if ( Array.isArray( value ) ) {
8092                                 return ( elem.checked = jQuery.inArray( jQuery( elem ).val(), value ) > -1 );
8093                         }
8094                 }
8095         };
8096         if ( !support.checkOn ) {
8097                 jQuery.valHooks[ this ].get = function( elem ) {
8098                         return elem.getAttribute( "value" ) === null ? "on" : elem.value;
8099                 };
8100         }
8101 } );
8102
8103
8104
8105
8106 // Return jQuery for attributes-only inclusion
8107
8108
8109 var rfocusMorph = /^(?:focusinfocus|focusoutblur)$/;
8110
8111 jQuery.extend( jQuery.event, {
8112
8113         trigger: function( event, data, elem, onlyHandlers ) {
8114
8115                 var i, cur, tmp, bubbleType, ontype, handle, special,
8116                         eventPath = [ elem || document ],
8117                         type = hasOwn.call( event, "type" ) ? event.type : event,
8118                         namespaces = hasOwn.call( event, "namespace" ) ? event.namespace.split( "." ) : [];
8119
8120                 cur = tmp = elem = elem || document;
8121
8122                 // Don't do events on text and comment nodes
8123                 if ( elem.nodeType === 3 || elem.nodeType === 8 ) {
8124                         return;
8125                 }
8126
8127                 // focus/blur morphs to focusin/out; ensure we're not firing them right now
8128                 if ( rfocusMorph.test( type + jQuery.event.triggered ) ) {
8129                         return;
8130                 }
8131
8132                 if ( type.indexOf( "." ) > -1 ) {
8133
8134                         // Namespaced trigger; create a regexp to match event type in handle()
8135                         namespaces = type.split( "." );
8136                         type = namespaces.shift();
8137                         namespaces.sort();
8138                 }
8139                 ontype = type.indexOf( ":" ) < 0 && "on" + type;
8140
8141                 // Caller can pass in a jQuery.Event object, Object, or just an event type string
8142                 event = event[ jQuery.expando ] ?
8143                         event :
8144                         new jQuery.Event( type, typeof event === "object" && event );
8145
8146                 // Trigger bitmask: & 1 for native handlers; & 2 for jQuery (always true)
8147                 event.isTrigger = onlyHandlers ? 2 : 3;
8148                 event.namespace = namespaces.join( "." );
8149                 event.rnamespace = event.namespace ?
8150                         new RegExp( "(^|\\.)" + namespaces.join( "\\.(?:.*\\.|)" ) + "(\\.|$)" ) :
8151                         null;
8152
8153                 // Clean up the event in case it is being reused
8154                 event.result = undefined;
8155                 if ( !event.target ) {
8156                         event.target = elem;
8157                 }
8158
8159                 // Clone any incoming data and prepend the event, creating the handler arg list
8160                 data = data == null ?
8161                         [ event ] :
8162                         jQuery.makeArray( data, [ event ] );
8163
8164                 // Allow special events to draw outside the lines
8165                 special = jQuery.event.special[ type ] || {};
8166                 if ( !onlyHandlers && special.trigger && special.trigger.apply( elem, data ) === false ) {
8167                         return;
8168                 }
8169
8170                 // Determine event propagation path in advance, per W3C events spec (#9951)
8171                 // Bubble up to document, then to window; watch for a global ownerDocument var (#9724)
8172                 if ( !onlyHandlers && !special.noBubble && !jQuery.isWindow( elem ) ) {
8173
8174                         bubbleType = special.delegateType || type;
8175                         if ( !rfocusMorph.test( bubbleType + type ) ) {
8176                                 cur = cur.parentNode;
8177                         }
8178                         for ( ; cur; cur = cur.parentNode ) {
8179                                 eventPath.push( cur );
8180                                 tmp = cur;
8181                         }
8182
8183                         // Only add window if we got to document (e.g., not plain obj or detached DOM)
8184                         if ( tmp === ( elem.ownerDocument || document ) ) {
8185                                 eventPath.push( tmp.defaultView || tmp.parentWindow || window );
8186                         }
8187                 }
8188
8189                 // Fire handlers on the event path
8190                 i = 0;
8191                 while ( ( cur = eventPath[ i++ ] ) && !event.isPropagationStopped() ) {
8192
8193                         event.type = i > 1 ?
8194                                 bubbleType :
8195                                 special.bindType || type;
8196
8197                         // jQuery handler
8198                         handle = ( dataPriv.get( cur, "events" ) || {} )[ event.type ] &&
8199                                 dataPriv.get( cur, "handle" );
8200                         if ( handle ) {
8201                                 handle.apply( cur, data );
8202                         }
8203
8204                         // Native handler
8205                         handle = ontype && cur[ ontype ];
8206                         if ( handle && handle.apply && acceptData( cur ) ) {
8207                                 event.result = handle.apply( cur, data );
8208                                 if ( event.result === false ) {
8209                                         event.preventDefault();
8210                                 }
8211                         }
8212                 }
8213                 event.type = type;
8214
8215                 // If nobody prevented the default action, do it now
8216                 if ( !onlyHandlers && !event.isDefaultPrevented() ) {
8217
8218                         if ( ( !special._default ||
8219                                 special._default.apply( eventPath.pop(), data ) === false ) &&
8220                                 acceptData( elem ) ) {
8221
8222                                 // Call a native DOM method on the target with the same name as the event.
8223                                 // Don't do default actions on window, that's where global variables be (#6170)
8224                                 if ( ontype && jQuery.isFunction( elem[ type ] ) && !jQuery.isWindow( elem ) ) {
8225
8226                                         // Don't re-trigger an onFOO event when we call its FOO() method
8227                                         tmp = elem[ ontype ];
8228
8229                                         if ( tmp ) {
8230                                                 elem[ ontype ] = null;
8231                                         }
8232
8233                                         // Prevent re-triggering of the same event, since we already bubbled it above
8234                                         jQuery.event.triggered = type;
8235                                         elem[ type ]();
8236                                         jQuery.event.triggered = undefined;
8237
8238                                         if ( tmp ) {
8239                                                 elem[ ontype ] = tmp;
8240                                         }
8241                                 }
8242                         }
8243                 }
8244
8245                 return event.result;
8246         },
8247
8248         // Piggyback on a donor event to simulate a different one
8249         // Used only for `focus(in | out)` events
8250         simulate: function( type, elem, event ) {
8251                 var e = jQuery.extend(
8252                         new jQuery.Event(),
8253                         event,
8254                         {
8255                                 type: type,
8256                                 isSimulated: true
8257                         }
8258                 );
8259
8260                 jQuery.event.trigger( e, null, elem );
8261         }
8262
8263 } );
8264
8265 jQuery.fn.extend( {
8266
8267         trigger: function( type, data ) {
8268                 return this.each( function() {
8269                         jQuery.event.trigger( type, data, this );
8270                 } );
8271         },
8272         triggerHandler: function( type, data ) {
8273                 var elem = this[ 0 ];
8274                 if ( elem ) {
8275                         return jQuery.event.trigger( type, data, elem, true );
8276                 }
8277         }
8278 } );
8279
8280
8281 jQuery.each( ( "blur focus focusin focusout resize scroll click dblclick " +
8282         "mousedown mouseup mousemove mouseover mouseout mouseenter mouseleave " +
8283         "change select submit keydown keypress keyup contextmenu" ).split( " " ),
8284         function( i, name ) {
8285
8286         // Handle event binding
8287         jQuery.fn[ name ] = function( data, fn ) {
8288                 return arguments.length > 0 ?
8289                         this.on( name, null, data, fn ) :
8290                         this.trigger( name );
8291         };
8292 } );
8293
8294 jQuery.fn.extend( {
8295         hover: function( fnOver, fnOut ) {
8296                 return this.mouseenter( fnOver ).mouseleave( fnOut || fnOver );
8297         }
8298 } );
8299
8300
8301
8302
8303 support.focusin = "onfocusin" in window;
8304
8305
8306 // Support: Firefox <=44
8307 // Firefox doesn't have focus(in | out) events
8308 // Related ticket - https://bugzilla.mozilla.org/show_bug.cgi?id=687787
8309 //
8310 // Support: Chrome <=48 - 49, Safari <=9.0 - 9.1
8311 // focus(in | out) events fire after focus & blur events,
8312 // which is spec violation - http://www.w3.org/TR/DOM-Level-3-Events/#events-focusevent-event-order
8313 // Related ticket - https://bugs.chromium.org/p/chromium/issues/detail?id=449857
8314 if ( !support.focusin ) {
8315         jQuery.each( { focus: "focusin", blur: "focusout" }, function( orig, fix ) {
8316
8317                 // Attach a single capturing handler on the document while someone wants focusin/focusout
8318                 var handler = function( event ) {
8319                         jQuery.event.simulate( fix, event.target, jQuery.event.fix( event ) );
8320                 };
8321
8322                 jQuery.event.special[ fix ] = {
8323                         setup: function() {
8324                                 var doc = this.ownerDocument || this,
8325                                         attaches = dataPriv.access( doc, fix );
8326
8327                                 if ( !attaches ) {
8328                                         doc.addEventListener( orig, handler, true );
8329                                 }
8330                                 dataPriv.access( doc, fix, ( attaches || 0 ) + 1 );
8331                         },
8332                         teardown: function() {
8333                                 var doc = this.ownerDocument || this,
8334                                         attaches = dataPriv.access( doc, fix ) - 1;
8335
8336                                 if ( !attaches ) {
8337                                         doc.removeEventListener( orig, handler, true );
8338                                         dataPriv.remove( doc, fix );
8339
8340                                 } else {
8341                                         dataPriv.access( doc, fix, attaches );
8342                                 }
8343                         }
8344                 };
8345         } );
8346 }
8347 var location = window.location;
8348
8349 var nonce = jQuery.now();
8350
8351 var rquery = ( /\?/ );
8352
8353
8354
8355 // Cross-browser xml parsing
8356 jQuery.parseXML = function( data ) {
8357         var xml;
8358         if ( !data || typeof data !== "string" ) {
8359                 return null;
8360         }
8361
8362         // Support: IE 9 - 11 only
8363         // IE throws on parseFromString with invalid input.
8364         try {
8365                 xml = ( new window.DOMParser() ).parseFromString( data, "text/xml" );
8366         } catch ( e ) {
8367                 xml = undefined;
8368         }
8369
8370         if ( !xml || xml.getElementsByTagName( "parsererror" ).length ) {
8371                 jQuery.error( "Invalid XML: " + data );
8372         }
8373         return xml;
8374 };
8375
8376
8377 var
8378         rbracket = /\[\]$/,
8379         rCRLF = /\r?\n/g,
8380         rsubmitterTypes = /^(?:submit|button|image|reset|file)$/i,
8381         rsubmittable = /^(?:input|select|textarea|keygen)/i;
8382
8383 function buildParams( prefix, obj, traditional, add ) {
8384         var name;
8385
8386         if ( Array.isArray( obj ) ) {
8387
8388                 // Serialize array item.
8389                 jQuery.each( obj, function( i, v ) {
8390                         if ( traditional || rbracket.test( prefix ) ) {
8391
8392                                 // Treat each array item as a scalar.
8393                                 add( prefix, v );
8394
8395                         } else {
8396
8397                                 // Item is non-scalar (array or object), encode its numeric index.
8398                                 buildParams(
8399                                         prefix + "[" + ( typeof v === "object" && v != null ? i : "" ) + "]",
8400                                         v,
8401                                         traditional,
8402                                         add
8403                                 );
8404                         }
8405                 } );
8406
8407         } else if ( !traditional && jQuery.type( obj ) === "object" ) {
8408
8409                 // Serialize object item.
8410                 for ( name in obj ) {
8411                         buildParams( prefix + "[" + name + "]", obj[ name ], traditional, add );
8412                 }
8413
8414         } else {
8415
8416                 // Serialize scalar item.
8417                 add( prefix, obj );
8418         }
8419 }
8420
8421 // Serialize an array of form elements or a set of
8422 // key/values into a query string
8423 jQuery.param = function( a, traditional ) {
8424         var prefix,
8425                 s = [],
8426                 add = function( key, valueOrFunction ) {
8427
8428                         // If value is a function, invoke it and use its return value
8429                         var value = jQuery.isFunction( valueOrFunction ) ?
8430                                 valueOrFunction() :
8431                                 valueOrFunction;
8432
8433                         s[ s.length ] = encodeURIComponent( key ) + "=" +
8434                                 encodeURIComponent( value == null ? "" : value );
8435                 };
8436
8437         // If an array was passed in, assume that it is an array of form elements.
8438         if ( Array.isArray( a ) || ( a.jquery && !jQuery.isPlainObject( a ) ) ) {
8439
8440                 // Serialize the form elements
8441                 jQuery.each( a, function() {
8442                         add( this.name, this.value );
8443                 } );
8444
8445         } else {
8446
8447                 // If traditional, encode the "old" way (the way 1.3.2 or older
8448                 // did it), otherwise encode params recursively.
8449                 for ( prefix in a ) {
8450                         buildParams( prefix, a[ prefix ], traditional, add );
8451                 }
8452         }
8453
8454         // Return the resulting serialization
8455         return s.join( "&" );
8456 };
8457
8458 jQuery.fn.extend( {
8459         serialize: function() {
8460                 return jQuery.param( this.serializeArray() );
8461         },
8462         serializeArray: function() {
8463                 return this.map( function() {
8464
8465                         // Can add propHook for "elements" to filter or add form elements
8466                         var elements = jQuery.prop( this, "elements" );
8467                         return elements ? jQuery.makeArray( elements ) : this;
8468                 } )
8469                 .filter( function() {
8470                         var type = this.type;
8471
8472                         // Use .is( ":disabled" ) so that fieldset[disabled] works
8473                         return this.name && !jQuery( this ).is( ":disabled" ) &&
8474                                 rsubmittable.test( this.nodeName ) && !rsubmitterTypes.test( type ) &&
8475                                 ( this.checked || !rcheckableType.test( type ) );
8476                 } )
8477                 .map( function( i, elem ) {
8478                         var val = jQuery( this ).val();
8479
8480                         if ( val == null ) {
8481                                 return null;
8482                         }
8483
8484                         if ( Array.isArray( val ) ) {
8485                                 return jQuery.map( val, function( val ) {
8486                                         return { name: elem.name, value: val.replace( rCRLF, "\r\n" ) };
8487                                 } );
8488                         }
8489
8490                         return { name: elem.name, value: val.replace( rCRLF, "\r\n" ) };
8491                 } ).get();
8492         }
8493 } );
8494
8495
8496 var
8497         r20 = /%20/g,
8498         rhash = /#.*$/,
8499         rantiCache = /([?&])_=[^&]*/,
8500         rheaders = /^(.*?):[ \t]*([^\r\n]*)$/mg,
8501
8502         // #7653, #8125, #8152: local protocol detection
8503         rlocalProtocol = /^(?:about|app|app-storage|.+-extension|file|res|widget):$/,
8504         rnoContent = /^(?:GET|HEAD)$/,
8505         rprotocol = /^\/\//,
8506
8507         /* Prefilters
8508          * 1) They are useful to introduce custom dataTypes (see ajax/jsonp.js for an example)
8509          * 2) These are called:
8510          *    - BEFORE asking for a transport
8511          *    - AFTER param serialization (s.data is a string if s.processData is true)
8512          * 3) key is the dataType
8513          * 4) the catchall symbol "*" can be used
8514          * 5) execution will start with transport dataType and THEN continue down to "*" if needed
8515          */
8516         prefilters = {},
8517
8518         /* Transports bindings
8519          * 1) key is the dataType
8520          * 2) the catchall symbol "*" can be used
8521          * 3) selection will start with transport dataType and THEN go to "*" if needed
8522          */
8523         transports = {},
8524
8525         // Avoid comment-prolog char sequence (#10098); must appease lint and evade compression
8526         allTypes = "*/".concat( "*" ),
8527
8528         // Anchor tag for parsing the document origin
8529         originAnchor = document.createElement( "a" );
8530         originAnchor.href = location.href;
8531
8532 // Base "constructor" for jQuery.ajaxPrefilter and jQuery.ajaxTransport
8533 function addToPrefiltersOrTransports( structure ) {
8534
8535         // dataTypeExpression is optional and defaults to "*"
8536         return function( dataTypeExpression, func ) {
8537
8538                 if ( typeof dataTypeExpression !== "string" ) {
8539                         func = dataTypeExpression;
8540                         dataTypeExpression = "*";
8541                 }
8542
8543                 var dataType,
8544                         i = 0,
8545                         dataTypes = dataTypeExpression.toLowerCase().match( rnothtmlwhite ) || [];
8546
8547                 if ( jQuery.isFunction( func ) ) {
8548
8549                         // For each dataType in the dataTypeExpression
8550                         while ( ( dataType = dataTypes[ i++ ] ) ) {
8551
8552                                 // Prepend if requested
8553                                 if ( dataType[ 0 ] === "+" ) {
8554                                         dataType = dataType.slice( 1 ) || "*";
8555                                         ( structure[ dataType ] = structure[ dataType ] || [] ).unshift( func );
8556
8557                                 // Otherwise append
8558                                 } else {
8559                                         ( structure[ dataType ] = structure[ dataType ] || [] ).push( func );
8560                                 }
8561                         }
8562                 }
8563         };
8564 }
8565
8566 // Base inspection function for prefilters and transports
8567 function inspectPrefiltersOrTransports( structure, options, originalOptions, jqXHR ) {
8568
8569         var inspected = {},
8570                 seekingTransport = ( structure === transports );
8571
8572         function inspect( dataType ) {
8573                 var selected;
8574                 inspected[ dataType ] = true;
8575                 jQuery.each( structure[ dataType ] || [], function( _, prefilterOrFactory ) {
8576                         var dataTypeOrTransport = prefilterOrFactory( options, originalOptions, jqXHR );
8577                         if ( typeof dataTypeOrTransport === "string" &&
8578                                 !seekingTransport && !inspected[ dataTypeOrTransport ] ) {
8579
8580                                 options.dataTypes.unshift( dataTypeOrTransport );
8581                                 inspect( dataTypeOrTransport );
8582                                 return false;
8583                         } else if ( seekingTransport ) {
8584                                 return !( selected = dataTypeOrTransport );
8585                         }
8586                 } );
8587                 return selected;
8588         }
8589
8590         return inspect( options.dataTypes[ 0 ] ) || !inspected[ "*" ] && inspect( "*" );
8591 }
8592
8593 // A special extend for ajax options
8594 // that takes "flat" options (not to be deep extended)
8595 // Fixes #9887
8596 function ajaxExtend( target, src ) {
8597         var key, deep,
8598                 flatOptions = jQuery.ajaxSettings.flatOptions || {};
8599
8600         for ( key in src ) {
8601                 if ( src[ key ] !== undefined ) {
8602                         ( flatOptions[ key ] ? target : ( deep || ( deep = {} ) ) )[ key ] = src[ key ];
8603                 }
8604         }
8605         if ( deep ) {
8606                 jQuery.extend( true, target, deep );
8607         }
8608
8609         return target;
8610 }
8611
8612 /* Handles responses to an ajax request:
8613  * - finds the right dataType (mediates between content-type and expected dataType)
8614  * - returns the corresponding response
8615  */
8616 function ajaxHandleResponses( s, jqXHR, responses ) {
8617
8618         var ct, type, finalDataType, firstDataType,
8619                 contents = s.contents,
8620                 dataTypes = s.dataTypes;
8621
8622         // Remove auto dataType and get content-type in the process
8623         while ( dataTypes[ 0 ] === "*" ) {
8624                 dataTypes.shift();
8625                 if ( ct === undefined ) {
8626                         ct = s.mimeType || jqXHR.getResponseHeader( "Content-Type" );
8627                 }
8628         }
8629
8630         // Check if we're dealing with a known content-type
8631         if ( ct ) {
8632                 for ( type in contents ) {
8633                         if ( contents[ type ] && contents[ type ].test( ct ) ) {
8634                                 dataTypes.unshift( type );
8635                                 break;
8636                         }
8637                 }
8638         }
8639
8640         // Check to see if we have a response for the expected dataType
8641         if ( dataTypes[ 0 ] in responses ) {
8642                 finalDataType = dataTypes[ 0 ];
8643         } else {
8644
8645                 // Try convertible dataTypes
8646                 for ( type in responses ) {
8647                         if ( !dataTypes[ 0 ] || s.converters[ type + " " + dataTypes[ 0 ] ] ) {
8648                                 finalDataType = type;
8649                                 break;
8650                         }
8651                         if ( !firstDataType ) {
8652                                 firstDataType = type;
8653                         }
8654                 }
8655
8656                 // Or just use first one
8657                 finalDataType = finalDataType || firstDataType;
8658         }
8659
8660         // If we found a dataType
8661         // We add the dataType to the list if needed
8662         // and return the corresponding response
8663         if ( finalDataType ) {
8664                 if ( finalDataType !== dataTypes[ 0 ] ) {
8665                         dataTypes.unshift( finalDataType );
8666                 }
8667                 return responses[ finalDataType ];
8668         }
8669 }
8670
8671 /* Chain conversions given the request and the original response
8672  * Also sets the responseXXX fields on the jqXHR instance
8673  */
8674 function ajaxConvert( s, response, jqXHR, isSuccess ) {
8675         var conv2, current, conv, tmp, prev,
8676                 converters = {},
8677
8678                 // Work with a copy of dataTypes in case we need to modify it for conversion
8679                 dataTypes = s.dataTypes.slice();
8680
8681         // Create converters map with lowercased keys
8682         if ( dataTypes[ 1 ] ) {
8683                 for ( conv in s.converters ) {
8684                         converters[ conv.toLowerCase() ] = s.converters[ conv ];
8685                 }
8686         }
8687
8688         current = dataTypes.shift();
8689
8690         // Convert to each sequential dataType
8691         while ( current ) {
8692
8693                 if ( s.responseFields[ current ] ) {
8694                         jqXHR[ s.responseFields[ current ] ] = response;
8695                 }
8696
8697                 // Apply the dataFilter if provided
8698                 if ( !prev && isSuccess && s.dataFilter ) {
8699                         response = s.dataFilter( response, s.dataType );
8700                 }
8701
8702                 prev = current;
8703                 current = dataTypes.shift();
8704
8705                 if ( current ) {
8706
8707                         // There's only work to do if current dataType is non-auto
8708                         if ( current === "*" ) {
8709
8710                                 current = prev;
8711
8712                         // Convert response if prev dataType is non-auto and differs from current
8713                         } else if ( prev !== "*" && prev !== current ) {
8714
8715                                 // Seek a direct converter
8716                                 conv = converters[ prev + " " + current ] || converters[ "* " + current ];
8717
8718                                 // If none found, seek a pair
8719                                 if ( !conv ) {
8720                                         for ( conv2 in converters ) {
8721
8722                                                 // If conv2 outputs current
8723                                                 tmp = conv2.split( " " );
8724                                                 if ( tmp[ 1 ] === current ) {
8725
8726                                                         // If prev can be converted to accepted input
8727                                                         conv = converters[ prev + " " + tmp[ 0 ] ] ||
8728                                                                 converters[ "* " + tmp[ 0 ] ];
8729                                                         if ( conv ) {
8730
8731                                                                 // Condense equivalence converters
8732                                                                 if ( conv === true ) {
8733                                                                         conv = converters[ conv2 ];
8734
8735                                                                 // Otherwise, insert the intermediate dataType
8736                                                                 } else if ( converters[ conv2 ] !== true ) {
8737                                                                         current = tmp[ 0 ];
8738                                                                         dataTypes.unshift( tmp[ 1 ] );
8739                                                                 }
8740                                                                 break;
8741                                                         }
8742                                                 }
8743                                         }
8744                                 }
8745
8746                                 // Apply converter (if not an equivalence)
8747                                 if ( conv !== true ) {
8748
8749                                         // Unless errors are allowed to bubble, catch and return them
8750                                         if ( conv && s.throws ) {
8751                                                 response = conv( response );
8752                                         } else {
8753                                                 try {
8754                                                         response = conv( response );
8755                                                 } catch ( e ) {
8756                                                         return {
8757                                                                 state: "parsererror",
8758                                                                 error: conv ? e : "No conversion from " + prev + " to " + current
8759                                                         };
8760                                                 }
8761                                         }
8762                                 }
8763                         }
8764                 }
8765         }
8766
8767         return { state: "success", data: response };
8768 }
8769
8770 jQuery.extend( {
8771
8772         // Counter for holding the number of active queries
8773         active: 0,
8774
8775         // Last-Modified header cache for next request
8776         lastModified: {},
8777         etag: {},
8778
8779         ajaxSettings: {
8780                 url: location.href,
8781                 type: "GET",
8782                 isLocal: rlocalProtocol.test( location.protocol ),
8783                 global: true,
8784                 processData: true,
8785                 async: true,
8786                 contentType: "application/x-www-form-urlencoded; charset=UTF-8",
8787
8788                 /*
8789                 timeout: 0,
8790                 data: null,
8791                 dataType: null,
8792                 username: null,
8793                 password: null,
8794                 cache: null,
8795                 throws: false,
8796                 traditional: false,
8797                 headers: {},
8798                 */
8799
8800                 accepts: {
8801                         "*": allTypes,
8802                         text: "text/plain",
8803                         html: "text/html",
8804                         xml: "application/xml, text/xml",
8805                         json: "application/json, text/javascript"
8806                 },
8807
8808                 contents: {
8809                         xml: /\bxml\b/,
8810                         html: /\bhtml/,
8811                         json: /\bjson\b/
8812                 },
8813
8814                 responseFields: {
8815                         xml: "responseXML",
8816                         text: "responseText",
8817                         json: "responseJSON"
8818                 },
8819
8820                 // Data converters
8821                 // Keys separate source (or catchall "*") and destination types with a single space
8822                 converters: {
8823
8824                         // Convert anything to text
8825                         "* text": String,
8826
8827                         // Text to html (true = no transformation)
8828                         "text html": true,
8829
8830                         // Evaluate text as a json expression
8831                         "text json": JSON.parse,
8832
8833                         // Parse text as xml
8834                         "text xml": jQuery.parseXML
8835                 },
8836
8837                 // For options that shouldn't be deep extended:
8838                 // you can add your own custom options here if
8839                 // and when you create one that shouldn't be
8840                 // deep extended (see ajaxExtend)
8841                 flatOptions: {
8842                         url: true,
8843                         context: true
8844                 }
8845         },
8846
8847         // Creates a full fledged settings object into target
8848         // with both ajaxSettings and settings fields.
8849         // If target is omitted, writes into ajaxSettings.
8850         ajaxSetup: function( target, settings ) {
8851                 return settings ?
8852
8853                         // Building a settings object
8854                         ajaxExtend( ajaxExtend( target, jQuery.ajaxSettings ), settings ) :
8855
8856                         // Extending ajaxSettings
8857                         ajaxExtend( jQuery.ajaxSettings, target );
8858         },
8859
8860         ajaxPrefilter: addToPrefiltersOrTransports( prefilters ),
8861         ajaxTransport: addToPrefiltersOrTransports( transports ),
8862
8863         // Main method
8864         ajax: function( url, options ) {
8865
8866                 // If url is an object, simulate pre-1.5 signature
8867                 if ( typeof url === "object" ) {
8868                         options = url;
8869                         url = undefined;
8870                 }
8871
8872                 // Force options to be an object
8873                 options = options || {};
8874
8875                 var transport,
8876
8877                         // URL without anti-cache param
8878                         cacheURL,
8879
8880                         // Response headers
8881                         responseHeadersString,
8882                         responseHeaders,
8883
8884                         // timeout handle
8885                         timeoutTimer,
8886
8887                         // Url cleanup var
8888                         urlAnchor,
8889
8890                         // Request state (becomes false upon send and true upon completion)
8891                         completed,
8892
8893                         // To know if global events are to be dispatched
8894                         fireGlobals,
8895
8896                         // Loop variable
8897                         i,
8898
8899                         // uncached part of the url
8900                         uncached,
8901
8902                         // Create the final options object
8903                         s = jQuery.ajaxSetup( {}, options ),
8904
8905                         // Callbacks context
8906                         callbackContext = s.context || s,
8907
8908                         // Context for global events is callbackContext if it is a DOM node or jQuery collection
8909                         globalEventContext = s.context &&
8910                                 ( callbackContext.nodeType || callbackContext.jquery ) ?
8911                                         jQuery( callbackContext ) :
8912                                         jQuery.event,
8913
8914                         // Deferreds
8915                         deferred = jQuery.Deferred(),
8916                         completeDeferred = jQuery.Callbacks( "once memory" ),
8917
8918                         // Status-dependent callbacks
8919                         statusCode = s.statusCode || {},
8920
8921                         // Headers (they are sent all at once)
8922                         requestHeaders = {},
8923                         requestHeadersNames = {},
8924
8925                         // Default abort message
8926                         strAbort = "canceled",
8927
8928                         // Fake xhr
8929                         jqXHR = {
8930                                 readyState: 0,
8931
8932                                 // Builds headers hashtable if needed
8933                                 getResponseHeader: function( key ) {
8934                                         var match;
8935                                         if ( completed ) {
8936                                                 if ( !responseHeaders ) {
8937                                                         responseHeaders = {};
8938                                                         while ( ( match = rheaders.exec( responseHeadersString ) ) ) {
8939                                                                 responseHeaders[ match[ 1 ].toLowerCase() ] = match[ 2 ];
8940                                                         }
8941                                                 }
8942                                                 match = responseHeaders[ key.toLowerCase() ];
8943                                         }
8944                                         return match == null ? null : match;
8945                                 },
8946
8947                                 // Raw string
8948                                 getAllResponseHeaders: function() {
8949                                         return completed ? responseHeadersString : null;
8950                                 },
8951
8952                                 // Caches the header
8953                                 setRequestHeader: function( name, value ) {
8954                                         if ( completed == null ) {
8955                                                 name = requestHeadersNames[ name.toLowerCase() ] =
8956                                                         requestHeadersNames[ name.toLowerCase() ] || name;
8957                                                 requestHeaders[ name ] = value;
8958                                         }
8959                                         return this;
8960                                 },
8961
8962                                 // Overrides response content-type header
8963                                 overrideMimeType: function( type ) {
8964                                         if ( completed == null ) {
8965                                                 s.mimeType = type;
8966                                         }
8967                                         return this;
8968                                 },
8969
8970                                 // Status-dependent callbacks
8971                                 statusCode: function( map ) {
8972                                         var code;
8973                                         if ( map ) {
8974                                                 if ( completed ) {
8975
8976                                                         // Execute the appropriate callbacks
8977                                                         jqXHR.always( map[ jqXHR.status ] );
8978                                                 } else {
8979
8980                                                         // Lazy-add the new callbacks in a way that preserves old ones
8981                                                         for ( code in map ) {
8982                                                                 statusCode[ code ] = [ statusCode[ code ], map[ code ] ];
8983                                                         }
8984                                                 }
8985                                         }
8986                                         return this;
8987                                 },
8988
8989                                 // Cancel the request
8990                                 abort: function( statusText ) {
8991                                         var finalText = statusText || strAbort;
8992                                         if ( transport ) {
8993                                                 transport.abort( finalText );
8994                                         }
8995                                         done( 0, finalText );
8996                                         return this;
8997                                 }
8998                         };
8999
9000                 // Attach deferreds
9001                 deferred.promise( jqXHR );
9002
9003                 // Add protocol if not provided (prefilters might expect it)
9004                 // Handle falsy url in the settings object (#10093: consistency with old signature)
9005                 // We also use the url parameter if available
9006                 s.url = ( ( url || s.url || location.href ) + "" )
9007                         .replace( rprotocol, location.protocol + "//" );
9008
9009                 // Alias method option to type as per ticket #12004
9010                 s.type = options.method || options.type || s.method || s.type;
9011
9012                 // Extract dataTypes list
9013                 s.dataTypes = ( s.dataType || "*" ).toLowerCase().match( rnothtmlwhite ) || [ "" ];
9014
9015                 // A cross-domain request is in order when the origin doesn't match the current origin.
9016                 if ( s.crossDomain == null ) {
9017                         urlAnchor = document.createElement( "a" );
9018
9019                         // Support: IE <=8 - 11, Edge 12 - 13
9020                         // IE throws exception on accessing the href property if url is malformed,
9021                         // e.g. http://example.com:80x/
9022                         try {
9023                                 urlAnchor.href = s.url;
9024
9025                                 // Support: IE <=8 - 11 only
9026                                 // Anchor's host property isn't correctly set when s.url is relative
9027                                 urlAnchor.href = urlAnchor.href;
9028                                 s.crossDomain = originAnchor.protocol + "//" + originAnchor.host !==
9029                                         urlAnchor.protocol + "//" + urlAnchor.host;
9030                         } catch ( e ) {
9031
9032                                 // If there is an error parsing the URL, assume it is crossDomain,
9033                                 // it can be rejected by the transport if it is invalid
9034                                 s.crossDomain = true;
9035                         }
9036                 }
9037
9038                 // Convert data if not already a string
9039                 if ( s.data && s.processData && typeof s.data !== "string" ) {
9040                         s.data = jQuery.param( s.data, s.traditional );
9041                 }
9042
9043                 // Apply prefilters
9044                 inspectPrefiltersOrTransports( prefilters, s, options, jqXHR );
9045
9046                 // If request was aborted inside a prefilter, stop there
9047                 if ( completed ) {
9048                         return jqXHR;
9049                 }
9050
9051                 // We can fire global events as of now if asked to
9052                 // Don't fire events if jQuery.event is undefined in an AMD-usage scenario (#15118)
9053                 fireGlobals = jQuery.event && s.global;
9054
9055                 // Watch for a new set of requests
9056                 if ( fireGlobals && jQuery.active++ === 0 ) {
9057                         jQuery.event.trigger( "ajaxStart" );
9058                 }
9059
9060                 // Uppercase the type
9061                 s.type = s.type.toUpperCase();
9062
9063                 // Determine if request has content
9064                 s.hasContent = !rnoContent.test( s.type );
9065
9066                 // Save the URL in case we're toying with the If-Modified-Since
9067                 // and/or If-None-Match header later on
9068                 // Remove hash to simplify url manipulation
9069                 cacheURL = s.url.replace( rhash, "" );
9070
9071                 // More options handling for requests with no content
9072                 if ( !s.hasContent ) {
9073
9074                         // Remember the hash so we can put it back
9075                         uncached = s.url.slice( cacheURL.length );
9076
9077                         // If data is available, append data to url
9078                         if ( s.data ) {
9079                                 cacheURL += ( rquery.test( cacheURL ) ? "&" : "?" ) + s.data;
9080
9081                                 // #9682: remove data so that it's not used in an eventual retry
9082                                 delete s.data;
9083                         }
9084
9085                         // Add or update anti-cache param if needed
9086                         if ( s.cache === false ) {
9087                                 cacheURL = cacheURL.replace( rantiCache, "$1" );
9088                                 uncached = ( rquery.test( cacheURL ) ? "&" : "?" ) + "_=" + ( nonce++ ) + uncached;
9089                         }
9090
9091                         // Put hash and anti-cache on the URL that will be requested (gh-1732)
9092                         s.url = cacheURL + uncached;
9093
9094                 // Change '%20' to '+' if this is encoded form body content (gh-2658)
9095                 } else if ( s.data && s.processData &&
9096                         ( s.contentType || "" ).indexOf( "application/x-www-form-urlencoded" ) === 0 ) {
9097                         s.data = s.data.replace( r20, "+" );
9098                 }
9099
9100                 // Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
9101                 if ( s.ifModified ) {
9102                         if ( jQuery.lastModified[ cacheURL ] ) {
9103                                 jqXHR.setRequestHeader( "If-Modified-Since", jQuery.lastModified[ cacheURL ] );
9104                         }
9105                         if ( jQuery.etag[ cacheURL ] ) {
9106                                 jqXHR.setRequestHeader( "If-None-Match", jQuery.etag[ cacheURL ] );
9107                         }
9108                 }
9109
9110                 // Set the correct header, if data is being sent
9111                 if ( s.data && s.hasContent && s.contentType !== false || options.contentType ) {
9112                         jqXHR.setRequestHeader( "Content-Type", s.contentType );
9113                 }
9114
9115                 // Set the Accepts header for the server, depending on the dataType
9116                 jqXHR.setRequestHeader(
9117                         "Accept",
9118                         s.dataTypes[ 0 ] && s.accepts[ s.dataTypes[ 0 ] ] ?
9119                                 s.accepts[ s.dataTypes[ 0 ] ] +
9120                                         ( s.dataTypes[ 0 ] !== "*" ? ", " + allTypes + "; q=0.01" : "" ) :
9121                                 s.accepts[ "*" ]
9122                 );
9123
9124                 // Check for headers option
9125                 for ( i in s.headers ) {
9126                         jqXHR.setRequestHeader( i, s.headers[ i ] );
9127                 }
9128
9129                 // Allow custom headers/mimetypes and early abort
9130                 if ( s.beforeSend &&
9131                         ( s.beforeSend.call( callbackContext, jqXHR, s ) === false || completed ) ) {
9132
9133                         // Abort if not done already and return
9134                         return jqXHR.abort();
9135                 }
9136
9137                 // Aborting is no longer a cancellation
9138                 strAbort = "abort";
9139
9140                 // Install callbacks on deferreds
9141                 completeDeferred.add( s.complete );
9142                 jqXHR.done( s.success );
9143                 jqXHR.fail( s.error );
9144
9145                 // Get transport
9146                 transport = inspectPrefiltersOrTransports( transports, s, options, jqXHR );
9147
9148                 // If no transport, we auto-abort
9149                 if ( !transport ) {
9150                         done( -1, "No Transport" );
9151                 } else {
9152                         jqXHR.readyState = 1;
9153
9154                         // Send global event
9155                         if ( fireGlobals ) {
9156                                 globalEventContext.trigger( "ajaxSend", [ jqXHR, s ] );
9157                         }
9158
9159                         // If request was aborted inside ajaxSend, stop there
9160                         if ( completed ) {
9161                                 return jqXHR;
9162                         }
9163
9164                         // Timeout
9165                         if ( s.async && s.timeout > 0 ) {
9166                                 timeoutTimer = window.setTimeout( function() {
9167                                         jqXHR.abort( "timeout" );
9168                                 }, s.timeout );
9169                         }
9170
9171                         try {
9172                                 completed = false;
9173                                 transport.send( requestHeaders, done );
9174                         } catch ( e ) {
9175
9176                                 // Rethrow post-completion exceptions
9177                                 if ( completed ) {
9178                                         throw e;
9179                                 }
9180
9181                                 // Propagate others as results
9182                                 done( -1, e );
9183                         }
9184                 }
9185
9186                 // Callback for when everything is done
9187                 function done( status, nativeStatusText, responses, headers ) {
9188                         var isSuccess, success, error, response, modified,
9189                                 statusText = nativeStatusText;
9190
9191                         // Ignore repeat invocations
9192                         if ( completed ) {
9193                                 return;
9194                         }
9195
9196                         completed = true;
9197
9198                         // Clear timeout if it exists
9199                         if ( timeoutTimer ) {
9200                                 window.clearTimeout( timeoutTimer );
9201                         }
9202
9203                         // Dereference transport for early garbage collection
9204                         // (no matter how long the jqXHR object will be used)
9205                         transport = undefined;
9206
9207                         // Cache response headers
9208                         responseHeadersString = headers || "";
9209
9210                         // Set readyState
9211                         jqXHR.readyState = status > 0 ? 4 : 0;
9212
9213                         // Determine if successful
9214                         isSuccess = status >= 200 && status < 300 || status === 304;
9215
9216                         // Get response data
9217                         if ( responses ) {
9218                                 response = ajaxHandleResponses( s, jqXHR, responses );
9219                         }
9220
9221                         // Convert no matter what (that way responseXXX fields are always set)
9222                         response = ajaxConvert( s, response, jqXHR, isSuccess );
9223
9224                         // If successful, handle type chaining
9225                         if ( isSuccess ) {
9226
9227                                 // Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
9228                                 if ( s.ifModified ) {
9229                                         modified = jqXHR.getResponseHeader( "Last-Modified" );
9230                                         if ( modified ) {
9231                                                 jQuery.lastModified[ cacheURL ] = modified;
9232                                         }
9233                                         modified = jqXHR.getResponseHeader( "etag" );
9234                                         if ( modified ) {
9235                                                 jQuery.etag[ cacheURL ] = modified;
9236                                         }
9237                                 }
9238
9239                                 // if no content
9240                                 if ( status === 204 || s.type === "HEAD" ) {
9241                                         statusText = "nocontent";
9242
9243                                 // if not modified
9244                                 } else if ( status === 304 ) {
9245                                         statusText = "notmodified";
9246
9247                                 // If we have data, let's convert it
9248                                 } else {
9249                                         statusText = response.state;
9250                                         success = response.data;
9251                                         error = response.error;
9252                                         isSuccess = !error;
9253                                 }
9254                         } else {
9255
9256                                 // Extract error from statusText and normalize for non-aborts
9257                                 error = statusText;
9258                                 if ( status || !statusText ) {
9259                                         statusText = "error";
9260                                         if ( status < 0 ) {
9261                                                 status = 0;
9262                                         }
9263                                 }
9264                         }
9265
9266                         // Set data for the fake xhr object
9267                         jqXHR.status = status;
9268                         jqXHR.statusText = ( nativeStatusText || statusText ) + "";
9269
9270                         // Success/Error
9271                         if ( isSuccess ) {
9272                                 deferred.resolveWith( callbackContext, [ success, statusText, jqXHR ] );
9273                         } else {
9274                                 deferred.rejectWith( callbackContext, [ jqXHR, statusText, error ] );
9275                         }
9276
9277                         // Status-dependent callbacks
9278                         jqXHR.statusCode( statusCode );
9279                         statusCode = undefined;
9280
9281                         if ( fireGlobals ) {
9282                                 globalEventContext.trigger( isSuccess ? "ajaxSuccess" : "ajaxError",
9283                                         [ jqXHR, s, isSuccess ? success : error ] );
9284                         }
9285
9286                         // Complete
9287                         completeDeferred.fireWith( callbackContext, [ jqXHR, statusText ] );
9288
9289                         if ( fireGlobals ) {
9290                                 globalEventContext.trigger( "ajaxComplete", [ jqXHR, s ] );
9291
9292                                 // Handle the global AJAX counter
9293                                 if ( !( --jQuery.active ) ) {
9294                                         jQuery.event.trigger( "ajaxStop" );
9295                                 }
9296                         }
9297                 }
9298
9299                 return jqXHR;
9300         },
9301
9302         getJSON: function( url, data, callback ) {
9303                 return jQuery.get( url, data, callback, "json" );
9304         },
9305
9306         getScript: function( url, callback ) {
9307                 return jQuery.get( url, undefined, callback, "script" );
9308         }
9309 } );
9310
9311 jQuery.each( [ "get", "post" ], function( i, method ) {
9312         jQuery[ method ] = function( url, data, callback, type ) {
9313
9314                 // Shift arguments if data argument was omitted
9315                 if ( jQuery.isFunction( data ) ) {
9316                         type = type || callback;
9317                         callback = data;
9318                         data = undefined;
9319                 }
9320
9321                 // The url can be an options object (which then must have .url)
9322                 return jQuery.ajax( jQuery.extend( {
9323                         url: url,
9324                         type: method,
9325                         dataType: type,
9326                         data: data,
9327                         success: callback
9328                 }, jQuery.isPlainObject( url ) && url ) );
9329         };
9330 } );
9331
9332
9333 jQuery._evalUrl = function( url ) {
9334         return jQuery.ajax( {
9335                 url: url,
9336
9337                 // Make this explicit, since user can override this through ajaxSetup (#11264)
9338                 type: "GET",
9339                 dataType: "script",
9340                 cache: true,
9341                 async: false,
9342                 global: false,
9343                 "throws": true
9344         } );
9345 };
9346
9347
9348 jQuery.fn.extend( {
9349         wrapAll: function( html ) {
9350                 var wrap;
9351
9352                 if ( this[ 0 ] ) {
9353                         if ( jQuery.isFunction( html ) ) {
9354                                 html = html.call( this[ 0 ] );
9355                         }
9356
9357                         // The elements to wrap the target around
9358                         wrap = jQuery( html, this[ 0 ].ownerDocument ).eq( 0 ).clone( true );
9359
9360                         if ( this[ 0 ].parentNode ) {
9361                                 wrap.insertBefore( this[ 0 ] );
9362                         }
9363
9364                         wrap.map( function() {
9365                                 var elem = this;
9366
9367                                 while ( elem.firstElementChild ) {
9368                                         elem = elem.firstElementChild;
9369                                 }
9370
9371                                 return elem;
9372                         } ).append( this );
9373                 }
9374
9375                 return this;
9376         },
9377
9378         wrapInner: function( html ) {
9379                 if ( jQuery.isFunction( html ) ) {
9380                         return this.each( function( i ) {
9381                                 jQuery( this ).wrapInner( html.call( this, i ) );
9382                         } );
9383                 }
9384
9385                 return this.each( function() {
9386                         var self = jQuery( this ),
9387                                 contents = self.contents();
9388
9389                         if ( contents.length ) {
9390                                 contents.wrapAll( html );
9391
9392                         } else {
9393                                 self.append( html );
9394                         }
9395                 } );
9396         },
9397
9398         wrap: function( html ) {
9399                 var isFunction = jQuery.isFunction( html );
9400
9401                 return this.each( function( i ) {
9402                         jQuery( this ).wrapAll( isFunction ? html.call( this, i ) : html );
9403                 } );
9404         },
9405
9406         unwrap: function( selector ) {
9407                 this.parent( selector ).not( "body" ).each( function() {
9408                         jQuery( this ).replaceWith( this.childNodes );
9409                 } );
9410                 return this;
9411         }
9412 } );
9413
9414
9415 jQuery.expr.pseudos.hidden = function( elem ) {
9416         return !jQuery.expr.pseudos.visible( elem );
9417 };
9418 jQuery.expr.pseudos.visible = function( elem ) {
9419         return !!( elem.offsetWidth || elem.offsetHeight || elem.getClientRects().length );
9420 };
9421
9422
9423
9424
9425 jQuery.ajaxSettings.xhr = function() {
9426         try {
9427                 return new window.XMLHttpRequest();
9428         } catch ( e ) {}
9429 };
9430
9431 var xhrSuccessStatus = {
9432
9433                 // File protocol always yields status code 0, assume 200
9434                 0: 200,
9435
9436                 // Support: IE <=9 only
9437                 // #1450: sometimes IE returns 1223 when it should be 204
9438                 1223: 204
9439         },
9440         xhrSupported = jQuery.ajaxSettings.xhr();
9441
9442 support.cors = !!xhrSupported && ( "withCredentials" in xhrSupported );
9443 support.ajax = xhrSupported = !!xhrSupported;
9444
9445 jQuery.ajaxTransport( function( options ) {
9446         var callback, errorCallback;
9447
9448         // Cross domain only allowed if supported through XMLHttpRequest
9449         if ( support.cors || xhrSupported && !options.crossDomain ) {
9450                 return {
9451                         send: function( headers, complete ) {
9452                                 var i,
9453                                         xhr = options.xhr();
9454
9455                                 xhr.open(
9456                                         options.type,
9457                                         options.url,
9458                                         options.async,
9459                                         options.username,
9460                                         options.password
9461                                 );
9462
9463                                 // Apply custom fields if provided
9464                                 if ( options.xhrFields ) {
9465                                         for ( i in options.xhrFields ) {
9466                                                 xhr[ i ] = options.xhrFields[ i ];
9467                                         }
9468                                 }
9469
9470                                 // Override mime type if needed
9471                                 if ( options.mimeType && xhr.overrideMimeType ) {
9472                                         xhr.overrideMimeType( options.mimeType );
9473                                 }
9474
9475                                 // X-Requested-With header
9476                                 // For cross-domain requests, seeing as conditions for a preflight are
9477                                 // akin to a jigsaw puzzle, we simply never set it to be sure.
9478                                 // (it can always be set on a per-request basis or even using ajaxSetup)
9479                                 // For same-domain requests, won't change header if already provided.
9480                                 if ( !options.crossDomain && !headers[ "X-Requested-With" ] ) {
9481                                         headers[ "X-Requested-With" ] = "XMLHttpRequest";
9482                                 }
9483
9484                                 // Set headers
9485                                 for ( i in headers ) {
9486                                         xhr.setRequestHeader( i, headers[ i ] );
9487                                 }
9488
9489                                 // Callback
9490                                 callback = function( type ) {
9491                                         return function() {
9492                                                 if ( callback ) {
9493                                                         callback = errorCallback = xhr.onload =
9494                                                                 xhr.onerror = xhr.onabort = xhr.onreadystatechange = null;
9495
9496                                                         if ( type === "abort" ) {
9497                                                                 xhr.abort();
9498                                                         } else if ( type === "error" ) {
9499
9500                                                                 // Support: IE <=9 only
9501                                                                 // On a manual native abort, IE9 throws
9502                                                                 // errors on any property access that is not readyState
9503                                                                 if ( typeof xhr.status !== "number" ) {
9504                                                                         complete( 0, "error" );
9505                                                                 } else {
9506                                                                         complete(
9507
9508                                                                                 // File: protocol always yields status 0; see #8605, #14207
9509                                                                                 xhr.status,
9510                                                                                 xhr.statusText
9511                                                                         );
9512                                                                 }
9513                                                         } else {
9514                                                                 complete(
9515                                                                         xhrSuccessStatus[ xhr.status ] || xhr.status,
9516                                                                         xhr.statusText,
9517
9518                                                                         // Support: IE <=9 only
9519                                                                         // IE9 has no XHR2 but throws on binary (trac-11426)
9520                                                                         // For XHR2 non-text, let the caller handle it (gh-2498)
9521                                                                         ( xhr.responseType || "text" ) !== "text"  ||
9522                                                                         typeof xhr.responseText !== "string" ?
9523                                                                                 { binary: xhr.response } :
9524                                                                                 { text: xhr.responseText },
9525                                                                         xhr.getAllResponseHeaders()
9526                                                                 );
9527                                                         }
9528                                                 }
9529                                         };
9530                                 };
9531
9532                                 // Listen to events
9533                                 xhr.onload = callback();
9534                                 errorCallback = xhr.onerror = callback( "error" );
9535
9536                                 // Support: IE 9 only
9537                                 // Use onreadystatechange to replace onabort
9538                                 // to handle uncaught aborts
9539                                 if ( xhr.onabort !== undefined ) {
9540                                         xhr.onabort = errorCallback;
9541                                 } else {
9542                                         xhr.onreadystatechange = function() {
9543
9544                                                 // Check readyState before timeout as it changes
9545                                                 if ( xhr.readyState === 4 ) {
9546
9547                                                         // Allow onerror to be called first,
9548                                                         // but that will not handle a native abort
9549                                                         // Also, save errorCallback to a variable
9550                                                         // as xhr.onerror cannot be accessed
9551                                                         window.setTimeout( function() {
9552                                                                 if ( callback ) {
9553                                                                         errorCallback();
9554                                                                 }
9555                                                         } );
9556                                                 }
9557                                         };
9558                                 }
9559
9560                                 // Create the abort callback
9561                                 callback = callback( "abort" );
9562
9563                                 try {
9564
9565                                         // Do send the request (this may raise an exception)
9566                                         xhr.send( options.hasContent && options.data || null );
9567                                 } catch ( e ) {
9568
9569                                         // #14683: Only rethrow if this hasn't been notified as an error yet
9570                                         if ( callback ) {
9571                                                 throw e;
9572                                         }
9573                                 }
9574                         },
9575
9576                         abort: function() {
9577                                 if ( callback ) {
9578                                         callback();
9579                                 }
9580                         }
9581                 };
9582         }
9583 } );
9584
9585
9586
9587
9588 // Prevent auto-execution of scripts when no explicit dataType was provided (See gh-2432)
9589 jQuery.ajaxPrefilter( function( s ) {
9590         if ( s.crossDomain ) {
9591                 s.contents.script = false;
9592         }
9593 } );
9594
9595 // Install script dataType
9596 jQuery.ajaxSetup( {
9597         accepts: {
9598                 script: "text/javascript, application/javascript, " +
9599                         "application/ecmascript, application/x-ecmascript"
9600         },
9601         contents: {
9602                 script: /\b(?:java|ecma)script\b/
9603         },
9604         converters: {
9605                 "text script": function( text ) {
9606                         jQuery.globalEval( text );
9607                         return text;
9608                 }
9609         }
9610 } );
9611
9612 // Handle cache's special case and crossDomain
9613 jQuery.ajaxPrefilter( "script", function( s ) {
9614         if ( s.cache === undefined ) {
9615                 s.cache = false;
9616         }
9617         if ( s.crossDomain ) {
9618                 s.type = "GET";
9619         }
9620 } );
9621
9622 // Bind script tag hack transport
9623 jQuery.ajaxTransport( "script", function( s ) {
9624
9625         // This transport only deals with cross domain requests
9626         if ( s.crossDomain ) {
9627                 var script, callback;
9628                 return {
9629                         send: function( _, complete ) {
9630                                 script = jQuery( "<script>" ).prop( {
9631                                         charset: s.scriptCharset,
9632                                         src: s.url
9633                                 } ).on(
9634                                         "load error",
9635                                         callback = function( evt ) {
9636                                                 script.remove();
9637                                                 callback = null;
9638                                                 if ( evt ) {
9639                                                         complete( evt.type === "error" ? 404 : 200, evt.type );
9640                                                 }
9641                                         }
9642                                 );
9643
9644                                 // Use native DOM manipulation to avoid our domManip AJAX trickery
9645                                 document.head.appendChild( script[ 0 ] );
9646                         },
9647                         abort: function() {
9648                                 if ( callback ) {
9649                                         callback();
9650                                 }
9651                         }
9652                 };
9653         }
9654 } );
9655
9656
9657
9658
9659 var oldCallbacks = [],
9660         rjsonp = /(=)\?(?=&|$)|\?\?/;
9661
9662 // Default jsonp settings
9663 jQuery.ajaxSetup( {
9664         jsonp: "callback",
9665         jsonpCallback: function() {
9666                 var callback = oldCallbacks.pop() || ( jQuery.expando + "_" + ( nonce++ ) );
9667                 this[ callback ] = true;
9668                 return callback;
9669         }
9670 } );
9671
9672 // Detect, normalize options and install callbacks for jsonp requests
9673 jQuery.ajaxPrefilter( "json jsonp", function( s, originalSettings, jqXHR ) {
9674
9675         var callbackName, overwritten, responseContainer,
9676                 jsonProp = s.jsonp !== false && ( rjsonp.test( s.url ) ?
9677                         "url" :
9678                         typeof s.data === "string" &&
9679                                 ( s.contentType || "" )
9680                                         .indexOf( "application/x-www-form-urlencoded" ) === 0 &&
9681                                 rjsonp.test( s.data ) && "data"
9682                 );
9683
9684         // Handle iff the expected data type is "jsonp" or we have a parameter to set
9685         if ( jsonProp || s.dataTypes[ 0 ] === "jsonp" ) {
9686
9687                 // Get callback name, remembering preexisting value associated with it
9688                 callbackName = s.jsonpCallback = jQuery.isFunction( s.jsonpCallback ) ?
9689                         s.jsonpCallback() :
9690                         s.jsonpCallback;
9691
9692                 // Insert callback into url or form data
9693                 if ( jsonProp ) {
9694                         s[ jsonProp ] = s[ jsonProp ].replace( rjsonp, "$1" + callbackName );
9695                 } else if ( s.jsonp !== false ) {
9696                         s.url += ( rquery.test( s.url ) ? "&" : "?" ) + s.jsonp + "=" + callbackName;
9697                 }
9698
9699                 // Use data converter to retrieve json after script execution
9700                 s.converters[ "script json" ] = function() {
9701                         if ( !responseContainer ) {
9702                                 jQuery.error( callbackName + " was not called" );
9703                         }
9704                         return responseContainer[ 0 ];
9705                 };
9706
9707                 // Force json dataType
9708                 s.dataTypes[ 0 ] = "json";
9709
9710                 // Install callback
9711                 overwritten = window[ callbackName ];
9712                 window[ callbackName ] = function() {
9713                         responseContainer = arguments;
9714                 };
9715
9716                 // Clean-up function (fires after converters)
9717                 jqXHR.always( function() {
9718
9719                         // If previous value didn't exist - remove it
9720                         if ( overwritten === undefined ) {
9721                                 jQuery( window ).removeProp( callbackName );
9722
9723                         // Otherwise restore preexisting value
9724                         } else {
9725                                 window[ callbackName ] = overwritten;
9726                         }
9727
9728                         // Save back as free
9729                         if ( s[ callbackName ] ) {
9730
9731                                 // Make sure that re-using the options doesn't screw things around
9732                                 s.jsonpCallback = originalSettings.jsonpCallback;
9733
9734                                 // Save the callback name for future use
9735                                 oldCallbacks.push( callbackName );
9736                         }
9737
9738                         // Call if it was a function and we have a response
9739                         if ( responseContainer && jQuery.isFunction( overwritten ) ) {
9740                                 overwritten( responseContainer[ 0 ] );
9741                         }
9742
9743                         responseContainer = overwritten = undefined;
9744                 } );
9745
9746                 // Delegate to script
9747                 return "script";
9748         }
9749 } );
9750
9751
9752
9753
9754 // Support: Safari 8 only
9755 // In Safari 8 documents created via document.implementation.createHTMLDocument
9756 // collapse sibling forms: the second one becomes a child of the first one.
9757 // Because of that, this security measure has to be disabled in Safari 8.
9758 // https://bugs.webkit.org/show_bug.cgi?id=137337
9759 support.createHTMLDocument = ( function() {
9760         var body = document.implementation.createHTMLDocument( "" ).body;
9761         body.innerHTML = "<form></form><form></form>";
9762         return body.childNodes.length === 2;
9763 } )();
9764
9765
9766 // Argument "data" should be string of html
9767 // context (optional): If specified, the fragment will be created in this context,
9768 // defaults to document
9769 // keepScripts (optional): If true, will include scripts passed in the html string
9770 jQuery.parseHTML = function( data, context, keepScripts ) {
9771         if ( typeof data !== "string" ) {
9772                 return [];
9773         }
9774         if ( typeof context === "boolean" ) {
9775                 keepScripts = context;
9776                 context = false;
9777         }
9778
9779         var base, parsed, scripts;
9780
9781         if ( !context ) {
9782
9783                 // Stop scripts or inline event handlers from being executed immediately
9784                 // by using document.implementation
9785                 if ( support.createHTMLDocument ) {
9786                         context = document.implementation.createHTMLDocument( "" );
9787
9788                         // Set the base href for the created document
9789                         // so any parsed elements with URLs
9790                         // are based on the document's URL (gh-2965)
9791                         base = context.createElement( "base" );
9792                         base.href = document.location.href;
9793                         context.head.appendChild( base );
9794                 } else {
9795                         context = document;
9796                 }
9797         }
9798
9799         parsed = rsingleTag.exec( data );
9800         scripts = !keepScripts && [];
9801
9802         // Single tag
9803         if ( parsed ) {
9804                 return [ context.createElement( parsed[ 1 ] ) ];
9805         }
9806
9807         parsed = buildFragment( [ data ], context, scripts );
9808
9809         if ( scripts && scripts.length ) {
9810                 jQuery( scripts ).remove();
9811         }
9812
9813         return jQuery.merge( [], parsed.childNodes );
9814 };
9815
9816
9817 /**
9818  * Load a url into a page
9819  */
9820 jQuery.fn.load = function( url, params, callback ) {
9821         var selector, type, response,
9822                 self = this,
9823                 off = url.indexOf( " " );
9824
9825         if ( off > -1 ) {
9826                 selector = stripAndCollapse( url.slice( off ) );
9827                 url = url.slice( 0, off );
9828         }
9829
9830         // If it's a function
9831         if ( jQuery.isFunction( params ) ) {
9832
9833                 // We assume that it's the callback
9834                 callback = params;
9835                 params = undefined;
9836
9837         // Otherwise, build a param string
9838         } else if ( params && typeof params === "object" ) {
9839                 type = "POST";
9840         }
9841
9842         // If we have elements to modify, make the request
9843         if ( self.length > 0 ) {
9844                 jQuery.ajax( {
9845                         url: url,
9846
9847                         // If "type" variable is undefined, then "GET" method will be used.
9848                         // Make value of this field explicit since
9849                         // user can override it through ajaxSetup method
9850                         type: type || "GET",
9851                         dataType: "html",
9852                         data: params
9853                 } ).done( function( responseText ) {
9854
9855                         // Save response for use in complete callback
9856                         response = arguments;
9857
9858                         self.html( selector ?
9859
9860                                 // If a selector was specified, locate the right elements in a dummy div
9861                                 // Exclude scripts to avoid IE 'Permission Denied' errors
9862                                 jQuery( "<div>" ).append( jQuery.parseHTML( responseText ) ).find( selector ) :
9863
9864                                 // Otherwise use the full result
9865                                 responseText );
9866
9867                 // If the request succeeds, this function gets "data", "status", "jqXHR"
9868                 // but they are ignored because response was set above.
9869                 // If it fails, this function gets "jqXHR", "status", "error"
9870                 } ).always( callback && function( jqXHR, status ) {
9871                         self.each( function() {
9872                                 callback.apply( this, response || [ jqXHR.responseText, status, jqXHR ] );
9873                         } );
9874                 } );
9875         }
9876
9877         return this;
9878 };
9879
9880
9881
9882
9883 // Attach a bunch of functions for handling common AJAX events
9884 jQuery.each( [
9885         "ajaxStart",
9886         "ajaxStop",
9887         "ajaxComplete",
9888         "ajaxError",
9889         "ajaxSuccess",
9890         "ajaxSend"
9891 ], function( i, type ) {
9892         jQuery.fn[ type ] = function( fn ) {
9893                 return this.on( type, fn );
9894         };
9895 } );
9896
9897
9898
9899
9900 jQuery.expr.pseudos.animated = function( elem ) {
9901         return jQuery.grep( jQuery.timers, function( fn ) {
9902                 return elem === fn.elem;
9903         } ).length;
9904 };
9905
9906
9907
9908
9909 jQuery.offset = {
9910         setOffset: function( elem, options, i ) {
9911                 var curPosition, curLeft, curCSSTop, curTop, curOffset, curCSSLeft, calculatePosition,
9912                         position = jQuery.css( elem, "position" ),
9913                         curElem = jQuery( elem ),
9914                         props = {};
9915
9916                 // Set position first, in-case top/left are set even on static elem
9917                 if ( position === "static" ) {
9918                         elem.style.position = "relative";
9919                 }
9920
9921                 curOffset = curElem.offset();
9922                 curCSSTop = jQuery.css( elem, "top" );
9923                 curCSSLeft = jQuery.css( elem, "left" );
9924                 calculatePosition = ( position === "absolute" || position === "fixed" ) &&
9925                         ( curCSSTop + curCSSLeft ).indexOf( "auto" ) > -1;
9926
9927                 // Need to be able to calculate position if either
9928                 // top or left is auto and position is either absolute or fixed
9929                 if ( calculatePosition ) {
9930                         curPosition = curElem.position();
9931                         curTop = curPosition.top;
9932                         curLeft = curPosition.left;
9933
9934                 } else {
9935                         curTop = parseFloat( curCSSTop ) || 0;
9936                         curLeft = parseFloat( curCSSLeft ) || 0;
9937                 }
9938
9939                 if ( jQuery.isFunction( options ) ) {
9940
9941                         // Use jQuery.extend here to allow modification of coordinates argument (gh-1848)
9942                         options = options.call( elem, i, jQuery.extend( {}, curOffset ) );
9943                 }
9944
9945                 if ( options.top != null ) {
9946                         props.top = ( options.top - curOffset.top ) + curTop;
9947                 }
9948                 if ( options.left != null ) {
9949                         props.left = ( options.left - curOffset.left ) + curLeft;
9950                 }
9951
9952                 if ( "using" in options ) {
9953                         options.using.call( elem, props );
9954
9955                 } else {
9956                         curElem.css( props );
9957                 }
9958         }
9959 };
9960
9961 jQuery.fn.extend( {
9962         offset: function( options ) {
9963
9964                 // Preserve chaining for setter
9965                 if ( arguments.length ) {
9966                         return options === undefined ?
9967                                 this :
9968                                 this.each( function( i ) {
9969                                         jQuery.offset.setOffset( this, options, i );
9970                                 } );
9971                 }
9972
9973                 var doc, docElem, rect, win,
9974                         elem = this[ 0 ];
9975
9976                 if ( !elem ) {
9977                         return;
9978                 }
9979
9980                 // Return zeros for disconnected and hidden (display: none) elements (gh-2310)
9981                 // Support: IE <=11 only
9982                 // Running getBoundingClientRect on a
9983                 // disconnected node in IE throws an error
9984                 if ( !elem.getClientRects().length ) {
9985                         return { top: 0, left: 0 };
9986                 }
9987
9988                 rect = elem.getBoundingClientRect();
9989
9990                 doc = elem.ownerDocument;
9991                 docElem = doc.documentElement;
9992                 win = doc.defaultView;
9993
9994                 return {
9995                         top: rect.top + win.pageYOffset - docElem.clientTop,
9996                         left: rect.left + win.pageXOffset - docElem.clientLeft
9997                 };
9998         },
9999
10000         position: function() {
10001                 if ( !this[ 0 ] ) {
10002                         return;
10003                 }
10004
10005                 var offsetParent, offset,
10006                         elem = this[ 0 ],
10007                         parentOffset = { top: 0, left: 0 };
10008
10009                 // Fixed elements are offset from window (parentOffset = {top:0, left: 0},
10010                 // because it is its only offset parent
10011                 if ( jQuery.css( elem, "position" ) === "fixed" ) {
10012
10013                         // Assume getBoundingClientRect is there when computed position is fixed
10014                         offset = elem.getBoundingClientRect();
10015
10016                 } else {
10017
10018                         // Get *real* offsetParent
10019                         offsetParent = this.offsetParent();
10020
10021                         // Get correct offsets
10022                         offset = this.offset();
10023                         if ( !nodeName( offsetParent[ 0 ], "html" ) ) {
10024                                 parentOffset = offsetParent.offset();
10025                         }
10026
10027                         // Add offsetParent borders
10028                         parentOffset = {
10029                                 top: parentOffset.top + jQuery.css( offsetParent[ 0 ], "borderTopWidth", true ),
10030                                 left: parentOffset.left + jQuery.css( offsetParent[ 0 ], "borderLeftWidth", true )
10031                         };
10032                 }
10033
10034                 // Subtract parent offsets and element margins
10035                 return {
10036                         top: offset.top - parentOffset.top - jQuery.css( elem, "marginTop", true ),
10037                         left: offset.left - parentOffset.left - jQuery.css( elem, "marginLeft", true )
10038                 };
10039         },
10040
10041         // This method will return documentElement in the following cases:
10042         // 1) For the element inside the iframe without offsetParent, this method will return
10043         //    documentElement of the parent window
10044         // 2) For the hidden or detached element
10045         // 3) For body or html element, i.e. in case of the html node - it will return itself
10046         //
10047         // but those exceptions were never presented as a real life use-cases
10048         // and might be considered as more preferable results.
10049         //
10050         // This logic, however, is not guaranteed and can change at any point in the future
10051         offsetParent: function() {
10052                 return this.map( function() {
10053                         var offsetParent = this.offsetParent;
10054
10055                         while ( offsetParent && jQuery.css( offsetParent, "position" ) === "static" ) {
10056                                 offsetParent = offsetParent.offsetParent;
10057                         }
10058
10059                         return offsetParent || documentElement;
10060                 } );
10061         }
10062 } );
10063
10064 // Create scrollLeft and scrollTop methods
10065 jQuery.each( { scrollLeft: "pageXOffset", scrollTop: "pageYOffset" }, function( method, prop ) {
10066         var top = "pageYOffset" === prop;
10067
10068         jQuery.fn[ method ] = function( val ) {
10069                 return access( this, function( elem, method, val ) {
10070
10071                         // Coalesce documents and windows
10072                         var win;
10073                         if ( jQuery.isWindow( elem ) ) {
10074                                 win = elem;
10075                         } else if ( elem.nodeType === 9 ) {
10076                                 win = elem.defaultView;
10077                         }
10078
10079                         if ( val === undefined ) {
10080                                 return win ? win[ prop ] : elem[ method ];
10081                         }
10082
10083                         if ( win ) {
10084                                 win.scrollTo(
10085                                         !top ? val : win.pageXOffset,
10086                                         top ? val : win.pageYOffset
10087                                 );
10088
10089                         } else {
10090                                 elem[ method ] = val;
10091                         }
10092                 }, method, val, arguments.length );
10093         };
10094 } );
10095
10096 // Support: Safari <=7 - 9.1, Chrome <=37 - 49
10097 // Add the top/left cssHooks using jQuery.fn.position
10098 // Webkit bug: https://bugs.webkit.org/show_bug.cgi?id=29084
10099 // Blink bug: https://bugs.chromium.org/p/chromium/issues/detail?id=589347
10100 // getComputedStyle returns percent when specified for top/left/bottom/right;
10101 // rather than make the css module depend on the offset module, just check for it here
10102 jQuery.each( [ "top", "left" ], function( i, prop ) {
10103         jQuery.cssHooks[ prop ] = addGetHookIf( support.pixelPosition,
10104                 function( elem, computed ) {
10105                         if ( computed ) {
10106                                 computed = curCSS( elem, prop );
10107
10108                                 // If curCSS returns percentage, fallback to offset
10109                                 return rnumnonpx.test( computed ) ?
10110                                         jQuery( elem ).position()[ prop ] + "px" :
10111                                         computed;
10112                         }
10113                 }
10114         );
10115 } );
10116
10117
10118 // Create innerHeight, innerWidth, height, width, outerHeight and outerWidth methods
10119 jQuery.each( { Height: "height", Width: "width" }, function( name, type ) {
10120         jQuery.each( { padding: "inner" + name, content: type, "": "outer" + name },
10121                 function( defaultExtra, funcName ) {
10122
10123                 // Margin is only for outerHeight, outerWidth
10124                 jQuery.fn[ funcName ] = function( margin, value ) {
10125                         var chainable = arguments.length && ( defaultExtra || typeof margin !== "boolean" ),
10126                                 extra = defaultExtra || ( margin === true || value === true ? "margin" : "border" );
10127
10128                         return access( this, function( elem, type, value ) {
10129                                 var doc;
10130
10131                                 if ( jQuery.isWindow( elem ) ) {
10132
10133                                         // $( window ).outerWidth/Height return w/h including scrollbars (gh-1729)
10134                                         return funcName.indexOf( "outer" ) === 0 ?
10135                                                 elem[ "inner" + name ] :
10136                                                 elem.document.documentElement[ "client" + name ];
10137                                 }
10138
10139                                 // Get document width or height
10140                                 if ( elem.nodeType === 9 ) {
10141                                         doc = elem.documentElement;
10142
10143                                         // Either scroll[Width/Height] or offset[Width/Height] or client[Width/Height],
10144                                         // whichever is greatest
10145                                         return Math.max(
10146                                                 elem.body[ "scroll" + name ], doc[ "scroll" + name ],
10147                                                 elem.body[ "offset" + name ], doc[ "offset" + name ],
10148                                                 doc[ "client" + name ]
10149                                         );
10150                                 }
10151
10152                                 return value === undefined ?
10153
10154                                         // Get width or height on the element, requesting but not forcing parseFloat
10155                                         jQuery.css( elem, type, extra ) :
10156
10157                                         // Set width or height on the element
10158                                         jQuery.style( elem, type, value, extra );
10159                         }, type, chainable ? margin : undefined, chainable );
10160                 };
10161         } );
10162 } );
10163
10164
10165 jQuery.fn.extend( {
10166
10167         bind: function( types, data, fn ) {
10168                 return this.on( types, null, data, fn );
10169         },
10170         unbind: function( types, fn ) {
10171                 return this.off( types, null, fn );
10172         },
10173
10174         delegate: function( selector, types, data, fn ) {
10175                 return this.on( types, selector, data, fn );
10176         },
10177         undelegate: function( selector, types, fn ) {
10178
10179                 // ( namespace ) or ( selector, types [, fn] )
10180                 return arguments.length === 1 ?
10181                         this.off( selector, "**" ) :
10182                         this.off( types, selector || "**", fn );
10183         }
10184 } );
10185
10186 jQuery.holdReady = function( hold ) {
10187         if ( hold ) {
10188                 jQuery.readyWait++;
10189         } else {
10190                 jQuery.ready( true );
10191         }
10192 };
10193 jQuery.isArray = Array.isArray;
10194 jQuery.parseJSON = JSON.parse;
10195 jQuery.nodeName = nodeName;
10196
10197
10198
10199
10200 // Register as a named AMD module, since jQuery can be concatenated with other
10201 // files that may use define, but not via a proper concatenation script that
10202 // understands anonymous AMD modules. A named AMD is safest and most robust
10203 // way to register. Lowercase jquery is used because AMD module names are
10204 // derived from file names, and jQuery is normally delivered in a lowercase
10205 // file name. Do this after creating the global so that if an AMD module wants
10206 // to call noConflict to hide this version of jQuery, it will work.
10207
10208 // Note that for maximum portability, libraries that are not jQuery should
10209 // declare themselves as anonymous modules, and avoid setting a global if an
10210 // AMD loader is present. jQuery is a special case. For more information, see
10211 // https://github.com/jrburke/requirejs/wiki/Updating-existing-libraries#wiki-anon
10212
10213 if ( typeof define === "function" && define.amd ) {
10214         define( "jquery", [], function() {
10215                 return jQuery;
10216         } );
10217 }
10218
10219
10220
10221
10222 var
10223
10224         // Map over jQuery in case of overwrite
10225         _jQuery = window.jQuery,
10226
10227         // Map over the $ in case of overwrite
10228         _$ = window.$;
10229
10230 jQuery.noConflict = function( deep ) {
10231         if ( window.$ === jQuery ) {
10232                 window.$ = _$;
10233         }
10234
10235         if ( deep && window.jQuery === jQuery ) {
10236                 window.jQuery = _jQuery;
10237         }
10238
10239         return jQuery;
10240 };
10241
10242 // Expose jQuery and $ identifiers, even in AMD
10243 // (#7102#comment:10, https://github.com/jquery/jquery/pull/557)
10244 // and CommonJS for browser emulators (#13566)
10245 if ( !noGlobal ) {
10246         window.jQuery = window.$ = jQuery;
10247 }
10248
10249
10250
10251
10252 return jQuery;
10253 } );