src/core.js

   1 var jQuery = (function() {
   2
   3 // Define a local copy of jQuery
   4 var jQuery = function( selector, context ) {
   5                 // The jQuery object is actually just the init constructor 'enhanced'
   6                 return new jQuery.fn.init( selector, context );
   7         },
   8
   9         // Map over jQuery in case of overwrite
  10         _jQuery = window.jQuery,
  11
  12         // Map over the $ in case of overwrite
  13         _$ = window.$,
  14
  15         // A central reference to the root jQuery(document)
  16         rootjQuery,
  17
  18         // A simple way to check for HTML strings or ID strings
  19         // (both of which we optimize for)
  20         quickExpr = /^(?:[^<]*(<[\w\W]+>)[^>]*$|#([\w\-]+)$)/,
  21
  22         // Is it a simple selector
  23         isSimple = /^.[^:#\[\.,]*$/,
  24
  25         // Check if a string has a non-whitespace character in it
  26         rnotwhite = /\S/,
  27         rwhite = /\s/,
  28
  29         // Used for trimming whitespace
  30         trimLeft = /^\s+/,
  31         trimRight = /\s+$/,
  32
  33         // Check for non-word characters
  34         rnonword = /\W/,
  35
  36         // Check for digits
  37         rdigit = /\d/,
  38
  39         // Match a standalone tag
  40         rsingleTag = /^<(\w+)\s*\/?>(?:<\/\1>)?$/,
  41
  42         // JSON RegExp
  43         rvalidchars = /^[\],:{}\s]*$/,
  44         rvalidescape = /\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g,
  45         rvalidtokens = /"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g,
  46         rvalidbraces = /(?:^|:|,)(?:\s*\[)+/g,
  47
  48         // Useragent RegExp
  49         rwebkit = /(webkit)[ \/]([\w.]+)/,
  50         ropera = /(opera)(?:.*version)?[ \/]([\w.]+)/,
  51         rmsie = /(msie) ([\w.]+)/,
  52         rmozilla = /(mozilla)(?:.*? rv:([\w.]+))?/,
  53
  54         // Keep a UserAgent string for use with jQuery.browser
  55         userAgent = navigator.userAgent,
  56
  57         // For matching the engine and version of the browser
  58         browserMatch,
  59
  60         // Has the ready events already been bound?
  61         readyBound = false,
  62
  63         // The deferred used on DOM ready
  64         readyList,
  65
  66         // The ready event handler
  67         DOMContentLoaded,
  68
  69         // Save a reference to some core methods
  70         toString = Object.prototype.toString,
  71         hasOwn = Object.prototype.hasOwnProperty,
  72         push = Array.prototype.push,
  73         slice = Array.prototype.slice,
  74         trim = String.prototype.trim,
  75         indexOf = Array.prototype.indexOf,
  76
  77         // [[Class]] -> type pairs
  78         class2type = {};
  79
  80 jQuery.fn = jQuery.prototype = {
  81         init: function( selector, context ) {
  82                 var match, elem, ret, doc;
  83
  84                 // Handle $(""), $(null), or $(undefined)
  85                 if ( !selector ) {
  86                         return this;
  87                 }
  88
  89                 // Handle $(DOMElement)
  90                 if ( selector.nodeType ) {
  91                         this.context = this[0] = selector;
  92                         this.length = 1;
  93                         return this;
  94                 }
  95
  96                 // The body element only exists once, optimize finding it
  97                 if ( selector === "body" && !context && document.body ) {
  98                         this.context = document;
  99                         this[0] = document.body;
 100                         this.selector = "body";
 101                         this.length = 1;
 102                         return this;
 103                 }
 104
 105                 // Handle HTML strings
 106                 if ( typeof selector === "string" ) {
 107                         // Are we dealing with HTML string or an ID?
 108                         match = quickExpr.exec( selector );
 109
 110                         // Verify a match, and that no context was specified for #id
 111                         if ( match && (match[1] || !context) ) {
 112
 113                                 // HANDLE: $(html) -> $(array)
 114                                 if ( match[1] ) {
 115                                         doc = (context ? context.ownerDocument || context : document);
 116
 117                                         // If a single string is passed in and it's a single tag
 118                                         // just do a createElement and skip the rest
 119                                         ret = rsingleTag.exec( selector );
 120
 121                                         if ( ret ) {
 122                                                 if ( jQuery.isPlainObject( context ) ) {
 123                                                         selector = [ document.createElement( ret[1] ) ];
 124                                                         jQuery.fn.attr.call( selector, context, true );
 125
 126                                                 } else {
 127                                                         selector = [ doc.createElement( ret[1] ) ];
 128                                                 }
 129
 130                                         } else {
 131                                                 ret = jQuery.buildFragment( [ match[1] ], [ doc ] );
 132                                                 selector = (ret.cacheable ? ret.fragment.cloneNode(true) : ret.fragment).childNodes;
 133                                         }
 134
 135                                         return jQuery.merge( this, selector );
 136
 137                                 // HANDLE: $("#id")
 138                                 } else {
 139                                         elem = document.getElementById( match[2] );
 140
 141                                         // Check parentNode to catch when Blackberry 4.6 returns
 142                                         // nodes that are no longer in the document #6963
 143                                         if ( elem && elem.parentNode ) {
 144                                                 // Handle the case where IE and Opera return items
 145                                                 // by name instead of ID
 146                                                 if ( elem.id !== match[2] ) {
 147                                                         return rootjQuery.find( selector );
 148                                                 }
 149
 150                                                 // Otherwise, we inject the element directly into the jQuery object
 151                                                 this.length = 1;
 152                                                 this[0] = elem;
 153                                         }
 154
 155                                         this.context = document;
 156                                         this.selector = selector;
 157                                         return this;
 158                                 }
 159
 160                         // HANDLE: $("TAG")
 161                         } else if ( !context && !rnonword.test( selector ) ) {
 162                                 this.selector = selector;
 163                                 this.context = document;
 164                                 selector = document.getElementsByTagName( selector );
 165                                 return jQuery.merge( this, selector );
 166
 167                         // HANDLE: $(expr, $(...))
 168                         } else if ( !context || context.jquery ) {
 169                                 return (context || rootjQuery).find( selector );
 170
 171                         // HANDLE: $(expr, context)
 172                         // (which is just equivalent to: $(context).find(expr)
 173                         } else {
 174                                 return jQuery( context ).find( selector );
 175                         }
 176
 177                 // HANDLE: $(function)
 178                 // Shortcut for document ready
 179                 } else if ( jQuery.isFunction( selector ) ) {
 180                         return rootjQuery.ready( selector );
 181                 }
 182
 183                 if (selector.selector !== undefined) {
 184                         this.selector = selector.selector;
 185                         this.context = selector.context;
 186                 }
 187
 188                 return jQuery.makeArray( selector, this );
 189         },
 190
 191         // Start with an empty selector
 192         selector: "",
 193
 194         // The current version of jQuery being used
 195         jquery: "@VERSION",
 196
 197         // The default length of a jQuery object is 0
 198         length: 0,
 199
 200         // The number of elements contained in the matched element set
 201         size: function() {
 202                 return this.length;
 203         },
 204
 205         toArray: function() {
 206                 return slice.call( this, 0 );
 207         },
 208
 209         // Get the Nth element in the matched element set OR
 210         // Get the whole matched element set as a clean array
 211         get: function( num ) {
 212                 return num == null ?
 213
 214                         // Return a 'clean' array
 215                         this.toArray() :
 216
 217                         // Return just the object
 218                         ( num < 0 ? this[ this.length + num ] : this[ num ] );
 219         },
 220
 221         // Take an array of elements and push it onto the stack
 222         // (returning the new matched element set)
 223         pushStack: function( elems, name, selector ) {
 224                 // Build a new jQuery matched element set
 225                 var ret = jQuery();
 226
 227                 if ( jQuery.isArray( elems ) ) {
 228                         push.apply( ret, elems );
 229
 230                 } else {
 231                         jQuery.merge( ret, elems );
 232                 }
 233
 234                 // Add the old object onto the stack (as a reference)
 235                 ret.prevObject = this;
 236
 237                 ret.context = this.context;
 238
 239                 if ( name === "find" ) {
 240                         ret.selector = this.selector + (this.selector ? " " : "") + selector;
 241                 } else if ( name ) {
 242                         ret.selector = this.selector + "." + name + "(" + selector + ")";
 243                 }
 244
 245                 // Return the newly-formed element set
 246                 return ret;
 247         },
 248
 249         // Execute a callback for every element in the matched set.
 250         // (You can seed the arguments with an array of args, but this is
 251         // only used internally.)
 252         each: function( callback, args ) {
 253                 return jQuery.each( this, callback, args );
 254         },
 255
 256         ready: function() {
 257                 // Attach the listeners
 258                 jQuery.bindReady();
 259
 260                 // Change ready & apply
 261                 return ( jQuery.fn.ready = readyList.complete ).apply( this , arguments );
 262         },
 263
 264         eq: function( i ) {
 265                 return i === -1 ?
 266                         this.slice( i ) :
 267                         this.slice( i, +i + 1 );
 268         },
 269
 270         first: function() {
 271                 return this.eq( 0 );
 272         },
 273
 274         last: function() {
 275                 return this.eq( -1 );
 276         },
 277
 278         slice: function() {
 279                 return this.pushStack( slice.apply( this, arguments ),
 280                         "slice", slice.call(arguments).join(",") );
 281         },
 282
 283         map: function( callback ) {
 284                 return this.pushStack( jQuery.map(this, function( elem, i ) {
 285                         return callback.call( elem, i, elem );
 286                 }));
 287         },
 288
 289         end: function() {
 290                 return this.prevObject || jQuery(null);
 291         },
 292
 293         // For internal use only.
 294         // Behaves like an Array's method, not like a jQuery method.
 295         push: push,
 296         sort: [].sort,
 297         splice: [].splice
 298 };
 299
 300 // Give the init function the jQuery prototype for later instantiation
 301 jQuery.fn.init.prototype = jQuery.fn;
 302
 303 jQuery.extend = jQuery.fn.extend = function() {
 304          var options, name, src, copy, copyIsArray, clone,
 305                 target = arguments[0] || {},
 306                 i = 1,
 307                 length = arguments.length,
 308                 deep = false;
 309
 310         // Handle a deep copy situation
 311         if ( typeof target === "boolean" ) {
 312                 deep = target;
 313                 target = arguments[1] || {};
 314                 // skip the boolean and the target
 315                 i = 2;
 316         }
 317
 318         // Handle case when target is a string or something (possible in deep copy)
 319         if ( typeof target !== "object" && !jQuery.isFunction(target) ) {
 320                 target = {};
 321         }
 322
 323         // extend jQuery itself if only one argument is passed
 324         if ( length === i ) {
 325                 target = this;
 326                 --i;
 327         }
 328
 329         for ( ; i < length; i++ ) {
 330                 // Only deal with non-null/undefined values
 331                 if ( (options = arguments[ i ]) != null ) {
 332                         // Extend the base object
 333                         for ( name in options ) {
 334                                 src = target[ name ];
 335                                 copy = options[ name ];
 336
 337                                 // Prevent never-ending loop
 338                                 if ( target === copy ) {
 339                                         continue;
 340                                 }
 341
 342                                 // Recurse if we're merging plain objects or arrays
 343                                 if ( deep && copy && ( jQuery.isPlainObject(copy) || (copyIsArray = jQuery.isArray(copy)) ) ) {
 344                                         if ( copyIsArray ) {
 345                                                 copyIsArray = false;
 346                                                 clone = src && jQuery.isArray(src) ? src : [];
 347
 348                                         } else {
 349                                                 clone = src && jQuery.isPlainObject(src) ? src : {};
 350                                         }
 351
 352                                         // Never move original objects, clone them
 353                                         target[ name ] = jQuery.extend( deep, clone, copy );
 354
 355                                 // Don't bring in undefined values
 356                                 } else if ( copy !== undefined ) {
 357                                         target[ name ] = copy;
 358                                 }
 359                         }
 360                 }
 361         }
 362
 363         // Return the modified object
 364         return target;
 365 };
 366
 367 jQuery.extend({
 368         noConflict: function( deep ) {
 369                 window.$ = _$;
 370
 371                 if ( deep ) {
 372                         window.jQuery = _jQuery;
 373                 }
 374
 375                 return jQuery;
 376         },
 377
 378         // Is the DOM ready to be used? Set to true once it occurs.
 379         isReady: false,
 380
 381         // A counter to track how many items to wait for before
 382         // the ready event fires. See #6781
 383         readyWait: 1,
 384
 385         // Handle when the DOM is ready
 386         ready: function( wait ) {
 387                 // A third-party is pushing the ready event forwards
 388                 if ( wait === true ) {
 389                         jQuery.readyWait--;
 390                 }
 391
 392                 // Make sure that the DOM is not already loaded
 393                 if ( !jQuery.readyWait || (wait !== true && !jQuery.isReady) ) {
 394                         // Make sure body exists, at least, in case IE gets a little overzealous (ticket #5443).
 395                         if ( !document.body ) {
 396                                 return setTimeout( jQuery.ready, 1 );
 397                         }
 398
 399                         // Remember that the DOM is ready
 400                         jQuery.isReady = true;
 401
 402                         // If a normal DOM Ready event fired, decrement, and wait if need be
 403                         if ( wait !== true && --jQuery.readyWait > 0 ) {
 404                                 return;
 405                         }
 406
 407                         // If there are functions bound, to execute
 408                         readyList.fire( document , [ jQuery ] );
 409
 410                         // Trigger any bound ready events
 411                         if ( jQuery.fn.trigger ) {
 412                                 jQuery( document ).trigger( "ready" ).unbind( "ready" );
 413                         }
 414                 }
 415         },
 416
 417         bindReady: function() {
 418                 if ( readyBound ) {
 419                         return;
 420                 }
 421
 422                 readyBound = true;
 423
 424                 // Catch cases where $(document).ready() is called after the
 425                 // browser event has already occurred.
 426                 if ( document.readyState === "complete" ) {
 427                         // Handle it asynchronously to allow scripts the opportunity to delay ready
 428                         return setTimeout( jQuery.ready, 1 );
 429                 }
 430
 431                 // Mozilla, Opera and webkit nightlies currently support this event
 432                 if ( document.addEventListener ) {
 433                         // Use the handy event callback
 434                         document.addEventListener( "DOMContentLoaded", DOMContentLoaded, false );
 435
 436                         // A fallback to window.onload, that will always work
 437                         window.addEventListener( "load", jQuery.ready, false );
 438
 439                 // If IE event model is used
 440                 } else if ( document.attachEvent ) {
 441                         // ensure firing before onload,
 442                         // maybe late but safe also for iframes
 443                         document.attachEvent("onreadystatechange", DOMContentLoaded);
 444
 445                         // A fallback to window.onload, that will always work
 446                         window.attachEvent( "onload", jQuery.ready );
 447
 448                         // If IE and not a frame
 449                         // continually check to see if the document is ready
 450                         var toplevel = false;
 451
 452                         try {
 453                                 toplevel = window.frameElement == null;
 454                         } catch(e) {}
 455
 456                         if ( document.documentElement.doScroll && toplevel ) {
 457                                 doScrollCheck();
 458                         }
 459                 }
 460         },
 461
 462         // See test/unit/core.js for details concerning isFunction.
 463         // Since version 1.3, DOM methods and functions like alert
 464         // aren't supported. They return false on IE (#2968).
 465         isFunction: function( obj ) {
 466                 return jQuery.type(obj) === "function";
 467         },
 468
 469         isArray: Array.isArray || function( obj ) {
 470                 return jQuery.type(obj) === "array";
 471         },
 472
 473         // A crude way of determining if an object is a window
 474         isWindow: function( obj ) {
 475                 return obj && typeof obj === "object" && "setInterval" in obj;
 476         },
 477
 478         isNaN: function( obj ) {
 479                 return obj == null || !rdigit.test( obj ) || isNaN( obj );
 480         },
 481
 482         type: function( obj ) {
 483                 return obj == null ?
 484                         String( obj ) :
 485                         class2type[ toString.call(obj) ] || "object";
 486         },
 487
 488         isPlainObject: function( obj ) {
 489                 // Must be an Object.
 490                 // Because of IE, we also have to check the presence of the constructor property.
 491                 // Make sure that DOM nodes and window objects don't pass through, as well
 492                 if ( !obj || jQuery.type(obj) !== "object" || obj.nodeType || jQuery.isWindow( obj ) ) {
 493                         return false;
 494                 }
 495
 496                 // Not own constructor property must be Object
 497                 if ( obj.constructor &&
 498                         !hasOwn.call(obj, "constructor") &&
 499                         !hasOwn.call(obj.constructor.prototype, "isPrototypeOf") ) {
 500                         return false;
 501                 }
 502
 503                 // Own properties are enumerated firstly, so to speed up,
 504                 // if last one is own, then all properties are own.
 505
 506                 var key;
 507                 for ( key in obj ) {}
 508
 509                 return key === undefined || hasOwn.call( obj, key );
 510         },
 511
 512         isEmptyObject: function( obj ) {
 513                 for ( var name in obj ) {
 514                         return false;
 515                 }
 516                 return true;
 517         },
 518
 519         error: function( msg ) {
 520                 throw msg;
 521         },
 522
 523         parseJSON: function( data ) {
 524                 if ( typeof data !== "string" || !data ) {
 525                         return null;
 526                 }
 527
 528                 // Make sure leading/trailing whitespace is removed (IE can't handle it)
 529                 data = jQuery.trim( data );
 530
 531                 // Make sure the incoming data is actual JSON
 532                 // Logic borrowed from http://json.org/json2.js
 533                 if ( rvalidchars.test(data.replace(rvalidescape, "@")
 534                         .replace(rvalidtokens, "]")
 535                         .replace(rvalidbraces, "")) ) {
 536
 537                         // Try to use the native JSON parser first
 538                         return window.JSON && window.JSON.parse ?
 539                                 window.JSON.parse( data ) :
 540                                 (new Function("return " + data))();
 541
 542                 } else {
 543                         jQuery.error( "Invalid JSON: " + data );
 544                 }
 545         },
 546
 547         // Cross-browser xml parsing
 548         // (xml & tmp used internally)
 549         parseXML: function( data , xml , tmp ) {
 550
 551                 if ( window.DOMParser ) { // Standard
 552                         tmp = new DOMParser();
 553                         xml = tmp.parseFromString( data , "text/xml" );
 554                 } else { // IE
 555                         xml = new ActiveXObject( "Microsoft.XMLDOM" );
 556                         xml.async = "false";
 557                         xml.loadXML( data );
 558                 }
 559
 560                 tmp = xml.documentElement;
 561
 562                 if ( ! tmp || ! tmp.nodeName || tmp.nodeName === "parsererror" ) {
 563                         jQuery.error( "Invalid XML: " + data );
 564                 }
 565
 566                 return xml;
 567         },
 568
 569         noop: function() {},
 570
 571         // Evalulates a script in a global context
 572         globalEval: function( data ) {
 573                 if ( data && rnotwhite.test(data) ) {
 574                         // Inspired by code by Andrea Giammarchi
 575                         // http://webreflection.blogspot.com/2007/08/global-scope-evaluation-and-dom.html
 576                         var head = document.getElementsByTagName("head")[0] || document.documentElement,
 577                                 script = document.createElement("script");
 578
 579                         script.type = "text/javascript";
 580
 581                         if ( jQuery.support.scriptEval ) {
 582                                 script.appendChild( document.createTextNode( data ) );
 583                         } else {
 584                                 script.text = data;
 585                         }
 586
 587                         // Use insertBefore instead of appendChild to circumvent an IE6 bug.
 588                         // This arises when a base node is used (#2709).
 589                         head.insertBefore( script, head.firstChild );
 590                         head.removeChild( script );
 591                 }
 592         },
 593
 594         nodeName: function( elem, name ) {
 595                 return elem.nodeName && elem.nodeName.toUpperCase() === name.toUpperCase();
 596         },
 597
 598         // args is for internal usage only
 599         each: function( object, callback, args ) {
 600                 var name, i = 0,
 601                         length = object.length,
 602                         isObj = length === undefined || jQuery.isFunction(object);
 603
 604                 if ( args ) {
 605                         if ( isObj ) {
 606                                 for ( name in object ) {
 607                                         if ( callback.apply( object[ name ], args ) === false ) {
 608                                                 break;
 609                                         }
 610                                 }
 611                         } else {
 612                                 for ( ; i < length; ) {
 613                                         if ( callback.apply( object[ i++ ], args ) === false ) {
 614                                                 break;
 615                                         }
 616                                 }
 617                         }
 618
 619                 // A special, fast, case for the most common use of each
 620                 } else {
 621                         if ( isObj ) {
 622                                 for ( name in object ) {
 623                                         if ( callback.call( object[ name ], name, object[ name ] ) === false ) {
 624                                                 break;
 625                                         }
 626                                 }
 627                         } else {
 628                                 for ( var value = object[0];
 629                                         i < length && callback.call( value, i, value ) !== false; value = object[++i] ) {}
 630                         }
 631                 }
 632
 633                 return object;
 634         },
 635
 636         // Use native String.trim function wherever possible
 637         trim: trim ?
 638                 function( text ) {
 639                         return text == null ?
 640                                 "" :
 641                                 trim.call( text );
 642                 } :
 643
 644                 // Otherwise use our own trimming functionality
 645                 function( text ) {
 646                         return text == null ?
 647                                 "" :
 648                                 text.toString().replace( trimLeft, "" ).replace( trimRight, "" );
 649                 },
 650
 651         // results is for internal usage only
 652         makeArray: function( array, results ) {
 653                 var ret = results || [];
 654
 655                 if ( array != null ) {
 656                         // The window, strings (and functions) also have 'length'
 657                         // The extra typeof function check is to prevent crashes
 658                         // in Safari 2 (See: #3039)
 659                         // Tweaked logic slightly to handle Blackberry 4.7 RegExp issues #6930
 660                         var type = jQuery.type(array);
 661
 662                         if ( array.length == null || type === "string" || type === "function" || type === "regexp" || jQuery.isWindow( array ) ) {
 663                                 push.call( ret, array );
 664                         } else {
 665                                 jQuery.merge( ret, array );
 666                         }
 667                 }
 668
 669                 return ret;
 670         },
 671
 672         inArray: function( elem, array ) {
 673                 if ( array.indexOf ) {
 674                         return array.indexOf( elem );
 675                 }
 676
 677                 for ( var i = 0, length = array.length; i < length; i++ ) {
 678                         if ( array[ i ] === elem ) {
 679                                 return i;
 680                         }
 681                 }
 682
 683                 return -1;
 684         },
 685
 686         merge: function( first, second ) {
 687                 var i = first.length,
 688                         j = 0;
 689
 690                 if ( typeof second.length === "number" ) {
 691                         for ( var l = second.length; j < l; j++ ) {
 692                                 first[ i++ ] = second[ j ];
 693                         }
 694
 695                 } else {
 696                         while ( second[j] !== undefined ) {
 697                                 first[ i++ ] = second[ j++ ];
 698                         }
 699                 }
 700
 701                 first.length = i;
 702
 703                 return first;
 704         },
 705
 706         grep: function( elems, callback, inv ) {
 707                 var ret = [], retVal;
 708                 inv = !!inv;
 709
 710                 // Go through the array, only saving the items
 711                 // that pass the validator function
 712                 for ( var i = 0, length = elems.length; i < length; i++ ) {
 713                         retVal = !!callback( elems[ i ], i );
 714                         if ( inv !== retVal ) {
 715                                 ret.push( elems[ i ] );
 716                         }
 717                 }
 718
 719                 return ret;
 720         },
 721
 722         // arg is for internal usage only
 723         map: function( elems, callback, arg ) {
 724                 var ret = [], value;
 725
 726                 // Go through the array, translating each of the items to their
 727                 // new value (or values).
 728                 for ( var i = 0, length = elems.length; i < length; i++ ) {
 729                         value = callback( elems[ i ], i, arg );
 730
 731                         if ( value != null ) {
 732                                 ret[ ret.length ] = value;
 733                         }
 734                 }
 735
 736                 // Flatten any nested arrays
 737                 return ret.concat.apply( [], ret );
 738         },
 739
 740         // A global GUID counter for objects
 741         guid: 1,
 742
 743         proxy: function( fn, proxy, thisObject ) {
 744                 if ( arguments.length === 2 ) {
 745                         if ( typeof proxy === "string" ) {
 746                                 thisObject = fn;
 747                                 fn = thisObject[ proxy ];
 748                                 proxy = undefined;
 749
 750                         } else if ( proxy && !jQuery.isFunction( proxy ) ) {
 751                                 thisObject = proxy;
 752                                 proxy = undefined;
 753                         }
 754                 }
 755
 756                 if ( !proxy && fn ) {
 757                         proxy = function() {
 758                                 return fn.apply( thisObject || this, arguments );
 759                         };
 760                 }
 761
 762                 // Set the guid of unique handler to the same of original handler, so it can be removed
 763                 if ( fn ) {
 764                         proxy.guid = fn.guid = fn.guid || proxy.guid || jQuery.guid++;
 765                 }
 766
 767                 // So proxy can be declared as an argument
 768                 return proxy;
 769         },
 770
 771         // Mutifunctional method to get and set values to a collection
 772         // The value/s can be optionally by executed if its a function
 773         access: function( elems, key, value, exec, fn, pass ) {
 774                 var length = elems.length;
 775
 776                 // Setting many attributes
 777                 if ( typeof key === "object" ) {
 778                         for ( var k in key ) {
 779                                 jQuery.access( elems, k, key[k], exec, fn, value );
 780                         }
 781                         return elems;
 782                 }
 783
 784                 // Setting one attribute
 785                 if ( value !== undefined ) {
 786                         // Optionally, function values get executed if exec is true
 787                         exec = !pass && exec && jQuery.isFunction(value);
 788
 789                         for ( var i = 0; i < length; i++ ) {
 790                                 fn( elems[i], key, exec ? value.call( elems[i], i, fn( elems[i], key ) ) : value, pass );
 791                         }
 792
 793                         return elems;
 794                 }
 795
 796                 // Getting an attribute
 797                 return length ? fn( elems[0], key ) : undefined;
 798         },
 799
 800         now: function() {
 801                 return (new Date()).getTime();
 802         },
 803
 804         // Create a simple deferred (one callbacks list)
 805         _Deferred: function() {
 806
 807                 var // callbacks list
 808                         callbacks = [],
 809                         // stored [ context , args ]
 810                         fired,
 811                         // to avoid firing when already doing so
 812                         firing,
 813                         // flag to know if the deferred has been cancelled
 814                         cancelled,
 815                         // the deferred itself
 816                         deferred  = {
 817
 818                                 // complete( f1, f2, ...)
 819                                 complete: function () {
 820
 821                                         if ( ! cancelled ) {
 822
 823                                                 var args = arguments,
 824                                                         i,
 825                                                         length,
 826                                                         elem,
 827                                                         type,
 828                                                         _fired;
 829
 830                                                 if ( fired ) {
 831                                                         _fired = fired;
 832                                                         fired = 0;
 833                                                 }
 834
 835                                                 for ( i = 0, length = args.length ; i < length ; i++ ) {
 836                                                         elem = args[ i ];
 837                                                         type = jQuery.type( elem );
 838                                                         if ( type === "array" ) {
 839                                                                 deferred.complete.apply( deferred , elem );
 840                                                         } else if ( type === "function" ) {
 841                                                                 callbacks.push( elem );
 842                                                         }
 843                                                 }
 844
 845                                                 if ( _fired ) {
 846                                                         deferred.fire( _fired[ 0 ] , _fired[ 1 ] );
 847                                                 }
 848                                         }
 849
 850                                         return this;
 851                                 },
 852
 853                                 // resolve with given context and args
 854                                 fire: function( context , args ) {
 855                                         if ( ! cancelled && ! fired && ! firing ) {
 856
 857                                                 firing = 1;
 858
 859                                                 try {
 860                                                         while( callbacks[ 0 ] ) {
 861                                                                 callbacks.shift().apply( context , args );
 862                                                         }
 863                                                 }
 864                                                 finally {
 865                                                         fired = [ context , args ];
 866                                                         firing = 0;
 867                                                 }
 868                                         }
 869                                         return this;
 870                                 },
 871
 872                                 // resolve with this as context and given arguments
 873                                 resolve: function() {
 874                                         deferred.fire( jQuery.isFunction( this.promise ) ? this.promise() : this , arguments );
 875                                         return this;
 876                                 },
 877
 878                                 // Has this deferred been resolved?
 879                                 isResolved: function() {
 880                                         return !!( firing || fired );
 881                                 },
 882
 883                                 // Cancel
 884                                 cancel: function() {
 885                                         cancelled = 1;
 886                                         callbacks = [];
 887                                         return this;
 888                                 }
 889                         };
 890
 891                 return deferred;
 892         },
 893
 894         // Full fledged deferred (two callbacks list)
 895         // Typical success/error system
 896         Deferred: function( func ) {
 897
 898                 var deferred = jQuery._Deferred(),
 899                         failDeferred = jQuery._Deferred();
 900
 901                 // Add errorDeferred methods and redefine cancel
 902                 jQuery.extend( deferred , {
 903
 904                     then: function( completeCallbacks , failCallbacks ) {
 905                         deferred.complete( completeCallbacks ).fail( failCallbacks );
 906                         return this;
 907                     },
 908                         fail: failDeferred.complete,
 909                         fireReject: failDeferred.fire,
 910                         reject: failDeferred.resolve,
 911                         isRejected: failDeferred.isResolved,
 912                         // Get a promise for this deferred
 913                         // If obj is provided, the promise aspect is added to the object
 914                         promise: function( obj ) {
 915                                 obj = obj || {};
 916                                 jQuery.each( "then complete fail isResolved isRejected".split( " " ) , function( _ , method ) {
 917                                         obj[ method ] = deferred[ method ];
 918                                 });
 919                                 obj.promise = function() {
 920                                         return obj;
 921                                 };
 922                                 return obj;
 923                         }
 924
 925                 } );
 926
 927                 // Make sure only one callback list will be used
 928                 deferred.then( failDeferred.cancel , deferred.cancel );
 929
 930                 // Unexpose cancel
 931                 delete deferred.cancel;
 932
 933                 // Call given func if any
 934                 if ( func ) {
 935                         func.call( deferred , deferred );
 936                 }
 937
 938                 return deferred;
 939         },
 940
 941         // Deferred helper
 942         when: function( object ) {
 943                 object = object && jQuery.isFunction( object.promise ) ?
 944                         object :
 945                         jQuery.Deferred().resolve( object );
 946                 return object.promise();
 947         },
 948
 949         // Use of jQuery.browser is frowned upon.
 950         // More details: http://docs.jquery.com/Utilities/jQuery.browser
 951         uaMatch: function( ua ) {
 952                 ua = ua.toLowerCase();
 953
 954                 var match = rwebkit.exec( ua ) ||
 955                         ropera.exec( ua ) ||
 956                         rmsie.exec( ua ) ||
 957                         ua.indexOf("compatible") < 0 && rmozilla.exec( ua ) ||
 958                         [];
 959
 960                 return { browser: match[1] || "", version: match[2] || "0" };
 961         },
 962
 963         browser: {}
 964 });
 965
 966 // Create readyList deferred
 967 readyList = jQuery._Deferred();
 968
 969 // Populate the class2type map
 970 jQuery.each("Boolean Number String Function Array Date RegExp Object".split(" "), function(i, name) {
 971         class2type[ "[object " + name + "]" ] = name.toLowerCase();
 972 });
 973
 974 browserMatch = jQuery.uaMatch( userAgent );
 975 if ( browserMatch.browser ) {
 976         jQuery.browser[ browserMatch.browser ] = true;
 977         jQuery.browser.version = browserMatch.version;
 978 }
 979
 980 // Deprecated, use jQuery.browser.webkit instead
 981 if ( jQuery.browser.webkit ) {
 982         jQuery.browser.safari = true;
 983 }
 984
 985 if ( indexOf ) {
 986         jQuery.inArray = function( elem, array ) {
 987                 return indexOf.call( array, elem );
 988         };
 989 }
 990
 991 // Verify that \s matches non-breaking spaces
 992 // (IE fails on this test)
 993 if ( !rwhite.test( "\xA0" ) ) {
 994         trimLeft = /^[\s\xA0]+/;
 995         trimRight = /[\s\xA0]+$/;
 996 }
 997
 998 // All jQuery objects should point back to these
 999 rootjQuery = jQuery(document);
1000
1001 // Cleanup functions for the document ready method
1002 if ( document.addEventListener ) {
1003         DOMContentLoaded = function() {
1004                 document.removeEventListener( "DOMContentLoaded", DOMContentLoaded, false );
1005                 jQuery.ready();
1006         };
1007
1008 } else if ( document.attachEvent ) {
1009         DOMContentLoaded = function() {
1010                 // Make sure body exists, at least, in case IE gets a little overzealous (ticket #5443).
1011                 if ( document.readyState === "complete" ) {
1012                         document.detachEvent( "onreadystatechange", DOMContentLoaded );
1013                         jQuery.ready();
1014                 }
1015         };
1016 }
1017
1018 // The DOM ready check for Internet Explorer
1019 function doScrollCheck() {
1020         if ( jQuery.isReady ) {
1021                 return;
1022         }
1023
1024         try {
1025                 // If IE is used, use the trick by Diego Perini
1026                 // http://javascript.nwbox.com/IEContentLoaded/
1027                 document.documentElement.doScroll("left");
1028         } catch(e) {
1029                 setTimeout( doScrollCheck, 1 );
1030                 return;
1031         }
1032
1033         // and execute any waiting functions
1034         jQuery.ready();
1035 }
1036
1037 // Expose jQuery to the global object
1038 return (window.jQuery = window.$ = jQuery);
1039
1040 })();