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, rootjQuery );
   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\-]+)$)/,
  21
  22         // Check if a string has a non-whitespace character in it
  23         rnotwhite = /\S/,
  24
  25         // Used for trimming whitespace
  26         trimLeft = /^\s+/,
  27         trimRight = /\s+$/,
  28
  29         // Check for digits
  30         rdigit = /\d/,
  31
  32         // Match a standalone tag
  33         rsingleTag = /^<(\w+)\s*\/?>(?:<\/\1>)?$/,
  34
  35         // JSON RegExp
  36         rvalidchars = /^[\],:{}\s]*$/,
  37         rvalidescape = /\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g,
  38         rvalidtokens = /"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g,
  39         rvalidbraces = /(?:^|:|,)(?:\s*\[)+/g,
  40
  41         // Useragent RegExp
  42         rwebkit = /(webkit)[ \/]([\w.]+)/,
  43         ropera = /(opera)(?:.*version)?[ \/]([\w.]+)/,
  44         rmsie = /(msie) ([\w.]+)/,
  45         rmozilla = /(mozilla)(?:.*? rv:([\w.]+))?/,
  46
  47         // Keep a UserAgent string for use with jQuery.browser
  48         userAgent = navigator.userAgent,
  49
  50         // For matching the engine and version of the browser
  51         browserMatch,
  52
  53         // Has the ready events already been bound?
  54         readyBound = false,
  55
  56         // The deferred used on DOM ready
  57         readyList,
  58
  59         // Promise methods (with equivalent for invert)
  60         promiseMethods = {
  61                 then: 0, // will be overwritten for invert
  62                 done: "fail",
  63                 fail: "done",
  64                 isResolved: "isRejected",
  65                 isRejected: "isResolved",
  66                 promise: "invert",
  67                 invert: "promise"
  68         },
  69
  70         // The ready event handler
  71         DOMContentLoaded,
  72
  73         // Save a reference to some core methods
  74         toString = Object.prototype.toString,
  75         hasOwn = Object.prototype.hasOwnProperty,
  76         push = Array.prototype.push,
  77         slice = Array.prototype.slice,
  78         trim = String.prototype.trim,
  79         indexOf = Array.prototype.indexOf,
  80
  81         // [[Class]] -> type pairs
  82         class2type = {};
  83
  84 jQuery.fn = jQuery.prototype = {
  85         constructor: jQuery,
  86         init: function( selector, context, rootjQuery ) {
  87                 var match, elem, ret, doc;
  88
  89                 // Handle $(""), $(null), or $(undefined)
  90                 if ( !selector ) {
  91                         return this;
  92                 }
  93
  94                 // Handle $(DOMElement)
  95                 if ( selector.nodeType ) {
  96                         this.context = this[0] = selector;
  97                         this.length = 1;
  98                         return this;
  99                 }
 100
 101                 // The body element only exists once, optimize finding it
 102                 if ( selector === "body" && !context && document.body ) {
 103                         this.context = document;
 104                         this[0] = document.body;
 105                         this.selector = "body";
 106                         this.length = 1;
 107                         return this;
 108                 }
 109
 110                 // Handle HTML strings
 111                 if ( typeof selector === "string" ) {
 112                         // Are we dealing with HTML string or an ID?
 113                         match = quickExpr.exec( selector );
 114
 115                         // Verify a match, and that no context was specified for #id
 116                         if ( match && (match[1] || !context) ) {
 117
 118                                 // HANDLE: $(html) -> $(array)
 119                                 if ( match[1] ) {
 120                                         context = context instanceof jQuery ? context[0] : context;
 121                                         doc = (context ? context.ownerDocument || context : document);
 122
 123                                         // If a single string is passed in and it's a single tag
 124                                         // just do a createElement and skip the rest
 125                                         ret = rsingleTag.exec( selector );
 126
 127                                         if ( ret ) {
 128                                                 if ( jQuery.isPlainObject( context ) ) {
 129                                                         selector = [ document.createElement( ret[1] ) ];
 130                                                         jQuery.fn.attr.call( selector, context, true );
 131
 132                                                 } else {
 133                                                         selector = [ doc.createElement( ret[1] ) ];
 134                                                 }
 135
 136                                         } else {
 137                                                 ret = jQuery.buildFragment( [ match[1] ], [ doc ] );
 138                                                 selector = (ret.cacheable ? jQuery.clone(ret.fragment) : ret.fragment).childNodes;
 139                                         }
 140
 141                                         return jQuery.merge( this, selector );
 142
 143                                 // HANDLE: $("#id")
 144                                 } else {
 145                                         elem = document.getElementById( match[2] );
 146
 147                                         // Check parentNode to catch when Blackberry 4.6 returns
 148                                         // nodes that are no longer in the document #6963
 149                                         if ( elem && elem.parentNode ) {
 150                                                 // Handle the case where IE and Opera return items
 151                                                 // by name instead of ID
 152                                                 if ( elem.id !== match[2] ) {
 153                                                         return rootjQuery.find( selector );
 154                                                 }
 155
 156                                                 // Otherwise, we inject the element directly into the jQuery object
 157                                                 this.length = 1;
 158                                                 this[0] = elem;
 159                                         }
 160
 161                                         this.context = document;
 162                                         this.selector = selector;
 163                                         return this;
 164                                 }
 165
 166                         // HANDLE: $(expr, $(...))
 167                         } else if ( !context || context.jquery ) {
 168                                 return (context || rootjQuery).find( selector );
 169
 170                         // HANDLE: $(expr, context)
 171                         // (which is just equivalent to: $(context).find(expr)
 172                         } else {
 173                                 return this.constructor( context ).find( selector );
 174                         }
 175
 176                 // HANDLE: $(function)
 177                 // Shortcut for document ready
 178                 } else if ( jQuery.isFunction( selector ) ) {
 179                         return rootjQuery.ready( selector );
 180                 }
 181
 182                 if (selector.selector !== undefined) {
 183                         this.selector = selector.selector;
 184                         this.context = selector.context;
 185                 }
 186
 187                 return jQuery.makeArray( selector, this );
 188         },
 189
 190         // Start with an empty selector
 191         selector: "",
 192
 193         // The current version of jQuery being used
 194         jquery: "@VERSION",
 195
 196         // The default length of a jQuery object is 0
 197         length: 0,
 198
 199         // The number of elements contained in the matched element set
 200         size: function() {
 201                 return this.length;
 202         },
 203
 204         toArray: function() {
 205                 return slice.call( this, 0 );
 206         },
 207
 208         // Get the Nth element in the matched element set OR
 209         // Get the whole matched element set as a clean array
 210         get: function( num ) {
 211                 return num == null ?
 212
 213                         // Return a 'clean' array
 214                         this.toArray() :
 215
 216                         // Return just the object
 217                         ( num < 0 ? this[ this.length + num ] : this[ num ] );
 218         },
 219
 220         // Take an array of elements and push it onto the stack
 221         // (returning the new matched element set)
 222         pushStack: function( elems, name, selector ) {
 223                 // Build a new jQuery matched element set
 224                 var ret = this.constructor();
 225
 226                 if ( jQuery.isArray( elems ) ) {
 227                         push.apply( ret, elems );
 228
 229                 } else {
 230                         jQuery.merge( ret, elems );
 231                 }
 232
 233                 // Add the old object onto the stack (as a reference)
 234                 ret.prevObject = this;
 235
 236                 ret.context = this.context;
 237
 238                 if ( name === "find" ) {
 239                         ret.selector = this.selector + (this.selector ? " " : "") + selector;
 240                 } else if ( name ) {
 241                         ret.selector = this.selector + "." + name + "(" + selector + ")";
 242                 }
 243
 244                 // Return the newly-formed element set
 245                 return ret;
 246         },
 247
 248         // Execute a callback for every element in the matched set.
 249         // (You can seed the arguments with an array of args, but this is
 250         // only used internally.)
 251         each: function( callback, args ) {
 252                 return jQuery.each( this, callback, args );
 253         },
 254
 255         ready: function( fn ) {
 256                 // Attach the listeners
 257                 jQuery.bindReady();
 258
 259                 // Add the callback
 260                 readyList.done( fn );
 261
 262                 return this;
 263         },
 264
 265         eq: function( i ) {
 266                 return i === -1 ?
 267                         this.slice( i ) :
 268                         this.slice( i, +i + 1 );
 269         },
 270
 271         first: function() {
 272                 return this.eq( 0 );
 273         },
 274
 275         last: function() {
 276                 return this.eq( -1 );
 277         },
 278
 279         slice: function() {
 280                 return this.pushStack( slice.apply( this, arguments ),
 281                         "slice", slice.call(arguments).join(",") );
 282         },
 283
 284         map: function( callback ) {
 285                 return this.pushStack( jQuery.map(this, function( elem, i ) {
 286                         return callback.call( elem, i, elem );
 287                 }));
 288         },
 289
 290         end: function() {
 291                 return this.prevObject || this.constructor(null);
 292         },
 293
 294         // For internal use only.
 295         // Behaves like an Array's method, not like a jQuery method.
 296         push: push,
 297         sort: [].sort,
 298         splice: [].splice
 299 };
 300
 301 // Give the init function the jQuery prototype for later instantiation
 302 jQuery.fn.init.prototype = jQuery.fn;
 303
 304 jQuery.extend = jQuery.fn.extend = function() {
 305          var options, name, src, copy, copyIsArray, clone,
 306                 target = arguments[0] || {},
 307                 i = 1,
 308                 length = arguments.length,
 309                 deep = false;
 310
 311         // Handle a deep copy situation
 312         if ( typeof target === "boolean" ) {
 313                 deep = target;
 314                 target = arguments[1] || {};
 315                 // skip the boolean and the target
 316                 i = 2;
 317         }
 318
 319         // Handle case when target is a string or something (possible in deep copy)
 320         if ( typeof target !== "object" && !jQuery.isFunction(target) ) {
 321                 target = {};
 322         }
 323
 324         // extend jQuery itself if only one argument is passed
 325         if ( length === i ) {
 326                 target = this;
 327                 --i;
 328         }
 329
 330         for ( ; i < length; i++ ) {
 331                 // Only deal with non-null/undefined values
 332                 if ( (options = arguments[ i ]) != null ) {
 333                         // Extend the base object
 334                         for ( name in options ) {
 335                                 src = target[ name ];
 336                                 copy = options[ name ];
 337
 338                                 // Prevent never-ending loop
 339                                 if ( target === copy ) {
 340                                         continue;
 341                                 }
 342
 343                                 // Recurse if we're merging plain objects or arrays
 344                                 if ( deep && copy && ( jQuery.isPlainObject(copy) || (copyIsArray = jQuery.isArray(copy)) ) ) {
 345                                         if ( copyIsArray ) {
 346                                                 copyIsArray = false;
 347                                                 clone = src && jQuery.isArray(src) ? src : [];
 348
 349                                         } else {
 350                                                 clone = src && jQuery.isPlainObject(src) ? src : {};
 351                                         }
 352
 353                                         // Never move original objects, clone them
 354                                         target[ name ] = jQuery.extend( deep, clone, copy );
 355
 356                                 // Don't bring in undefined values
 357                                 } else if ( copy !== undefined ) {
 358                                         target[ name ] = copy;
 359                                 }
 360                         }
 361                 }
 362         }
 363
 364         // Return the modified object
 365         return target;
 366 };
 367
 368 jQuery.extend({
 369         noConflict: function( deep ) {
 370                 window.$ = _$;
 371
 372                 if ( deep ) {
 373                         window.jQuery = _jQuery;
 374                 }
 375
 376                 return jQuery;
 377         },
 378
 379         // Is the DOM ready to be used? Set to true once it occurs.
 380         isReady: false,
 381
 382         // A counter to track how many items to wait for before
 383         // the ready event fires. See #6781
 384         readyWait: 1,
 385
 386         // Handle when the DOM is ready
 387         ready: function( wait ) {
 388                 // A third-party is pushing the ready event forwards
 389                 if ( wait === true ) {
 390                         jQuery.readyWait--;
 391                 }
 392
 393                 // Make sure that the DOM is not already loaded
 394                 if ( !jQuery.readyWait || (wait !== true && !jQuery.isReady) ) {
 395                         // Make sure body exists, at least, in case IE gets a little overzealous (ticket #5443).
 396                         if ( !document.body ) {
 397                                 return setTimeout( jQuery.ready, 1 );
 398                         }
 399
 400                         // Remember that the DOM is ready
 401                         jQuery.isReady = true;
 402
 403                         // If a normal DOM Ready event fired, decrement, and wait if need be
 404                         if ( wait !== true && --jQuery.readyWait > 0 ) {
 405                                 return;
 406                         }
 407
 408                         // If there are functions bound, to execute
 409                         readyList.resolveWith( document, [ jQuery ] );
 410
 411                         // Trigger any bound ready events
 412                         if ( jQuery.fn.trigger ) {
 413                                 jQuery( document ).trigger( "ready" ).unbind( "ready" );
 414                         }
 415                 }
 416         },
 417
 418         bindReady: function() {
 419                 if ( readyBound ) {
 420                         return;
 421                 }
 422
 423                 readyBound = true;
 424
 425                 // Catch cases where $(document).ready() is called after the
 426                 // browser event has already occurred.
 427                 if ( document.readyState === "complete" ) {
 428                         // Handle it asynchronously to allow scripts the opportunity to delay ready
 429                         return setTimeout( jQuery.ready, 1 );
 430                 }
 431
 432                 // Mozilla, Opera and webkit nightlies currently support this event
 433                 if ( document.addEventListener ) {
 434                         // Use the handy event callback
 435                         document.addEventListener( "DOMContentLoaded", DOMContentLoaded, false );
 436
 437                         // A fallback to window.onload, that will always work
 438                         window.addEventListener( "load", jQuery.ready, false );
 439
 440                 // If IE event model is used
 441                 } else if ( document.attachEvent ) {
 442                         // ensure firing before onload,
 443                         // maybe late but safe also for iframes
 444                         document.attachEvent("onreadystatechange", DOMContentLoaded);
 445
 446                         // A fallback to window.onload, that will always work
 447                         window.attachEvent( "onload", jQuery.ready );
 448
 449                         // If IE and not a frame
 450                         // continually check to see if the document is ready
 451                         var toplevel = false;
 452
 453                         try {
 454                                 toplevel = window.frameElement == null;
 455                         } catch(e) {}
 456
 457                         if ( document.documentElement.doScroll && toplevel ) {
 458                                 doScrollCheck();
 459                         }
 460                 }
 461         },
 462
 463         // See test/unit/core.js for details concerning isFunction.
 464         // Since version 1.3, DOM methods and functions like alert
 465         // aren't supported. They return false on IE (#2968).
 466         isFunction: function( obj ) {
 467                 return jQuery.type(obj) === "function";
 468         },
 469
 470         isArray: Array.isArray || function( obj ) {
 471                 return jQuery.type(obj) === "array";
 472         },
 473
 474         // A crude way of determining if an object is a window
 475         isWindow: function( obj ) {
 476                 return obj && typeof obj === "object" && "setInterval" in obj;
 477         },
 478
 479         isNaN: function( obj ) {
 480                 return obj == null || !rdigit.test( obj ) || isNaN( obj );
 481         },
 482
 483         type: function( obj ) {
 484                 return obj == null ?
 485                         String( obj ) :
 486                         class2type[ toString.call(obj) ] || "object";
 487         },
 488
 489         isPlainObject: function( obj ) {
 490                 // Must be an Object.
 491                 // Because of IE, we also have to check the presence of the constructor property.
 492                 // Make sure that DOM nodes and window objects don't pass through, as well
 493                 if ( !obj || jQuery.type(obj) !== "object" || obj.nodeType || jQuery.isWindow( obj ) ) {
 494                         return false;
 495                 }
 496
 497                 // Not own constructor property must be Object
 498                 if ( obj.constructor &&
 499                         !hasOwn.call(obj, "constructor") &&
 500                         !hasOwn.call(obj.constructor.prototype, "isPrototypeOf") ) {
 501                         return false;
 502                 }
 503
 504                 // Own properties are enumerated firstly, so to speed up,
 505                 // if last one is own, then all properties are own.
 506
 507                 var key;
 508                 for ( key in obj ) {}
 509
 510                 return key === undefined || hasOwn.call( obj, key );
 511         },
 512
 513         isEmptyObject: function( obj ) {
 514                 for ( var name in obj ) {
 515                         return false;
 516                 }
 517                 return true;
 518         },
 519
 520         error: function( msg ) {
 521                 throw msg;
 522         },
 523
 524         parseJSON: function( data ) {
 525                 if ( typeof data !== "string" || !data ) {
 526                         return null;
 527                 }
 528
 529                 // Make sure leading/trailing whitespace is removed (IE can't handle it)
 530                 data = jQuery.trim( data );
 531
 532                 // Make sure the incoming data is actual JSON
 533                 // Logic borrowed from http://json.org/json2.js
 534                 if ( rvalidchars.test(data.replace(rvalidescape, "@")
 535                         .replace(rvalidtokens, "]")
 536                         .replace(rvalidbraces, "")) ) {
 537
 538                         // Try to use the native JSON parser first
 539                         return window.JSON && window.JSON.parse ?
 540                                 window.JSON.parse( data ) :
 541                                 (new Function("return " + data))();
 542
 543                 } else {
 544                         jQuery.error( "Invalid JSON: " + data );
 545                 }
 546         },
 547
 548         // Cross-browser xml parsing
 549         // (xml & tmp used internally)
 550         parseXML: function( data , xml , tmp ) {
 551
 552                 if ( window.DOMParser ) { // Standard
 553                         tmp = new DOMParser();
 554                         xml = tmp.parseFromString( data , "text/xml" );
 555                 } else { // IE
 556                         xml = new ActiveXObject( "Microsoft.XMLDOM" );
 557                         xml.async = "false";
 558                         xml.loadXML( data );
 559                 }
 560
 561                 tmp = xml.documentElement;
 562
 563                 if ( ! tmp || ! tmp.nodeName || tmp.nodeName === "parsererror" ) {
 564                         jQuery.error( "Invalid XML: " + data );
 565                 }
 566
 567                 return xml;
 568         },
 569
 570         noop: function() {},
 571
 572         // Evalulates a script in a global context
 573         globalEval: function( data ) {
 574                 if ( data && rnotwhite.test(data) ) {
 575                         // Inspired by code by Andrea Giammarchi
 576                         // http://webreflection.blogspot.com/2007/08/global-scope-evaluation-and-dom.html
 577                         var head = document.getElementsByTagName("head")[0] || document.documentElement,
 578                                 script = document.createElement("script");
 579
 580                         script.type = "text/javascript";
 581
 582                         if ( jQuery.support.scriptEval() ) {
 583                                 script.appendChild( document.createTextNode( data ) );
 584                         } else {
 585                                 script.text = data;
 586                         }
 587
 588                         // Use insertBefore instead of appendChild to circumvent an IE6 bug.
 589                         // This arises when a base node is used (#2709).
 590                         head.insertBefore( script, head.firstChild );
 591                         head.removeChild( script );
 592                 }
 593         },
 594
 595         nodeName: function( elem, name ) {
 596                 return elem.nodeName && elem.nodeName.toUpperCase() === name.toUpperCase();
 597         },
 598
 599         // args is for internal usage only
 600         each: function( object, callback, args ) {
 601                 var name, i = 0,
 602                         length = object.length,
 603                         isObj = length === undefined || jQuery.isFunction(object);
 604
 605                 if ( args ) {
 606                         if ( isObj ) {
 607                                 for ( name in object ) {
 608                                         if ( callback.apply( object[ name ], args ) === false ) {
 609                                                 break;
 610                                         }
 611                                 }
 612                         } else {
 613                                 for ( ; i < length; ) {
 614                                         if ( callback.apply( object[ i++ ], args ) === false ) {
 615                                                 break;
 616                                         }
 617                                 }
 618                         }
 619
 620                 // A special, fast, case for the most common use of each
 621                 } else {
 622                         if ( isObj ) {
 623                                 for ( name in object ) {
 624                                         if ( callback.call( object[ name ], name, object[ name ] ) === false ) {
 625                                                 break;
 626                                         }
 627                                 }
 628                         } else {
 629                                 for ( var value = object[0];
 630                                         i < length && callback.call( value, i, value ) !== false; value = object[++i] ) {}
 631                         }
 632                 }
 633
 634                 return object;
 635         },
 636
 637         // Use native String.trim function wherever possible
 638         trim: trim ?
 639                 function( text ) {
 640                         return text == null ?
 641                                 "" :
 642                                 trim.call( text );
 643                 } :
 644
 645                 // Otherwise use our own trimming functionality
 646                 function( text ) {
 647                         return text == null ?
 648                                 "" :
 649                                 text.toString().replace( trimLeft, "" ).replace( trimRight, "" );
 650                 },
 651
 652         // results is for internal usage only
 653         makeArray: function( array, results ) {
 654                 var ret = results || [];
 655
 656                 if ( array != null ) {
 657                         // The window, strings (and functions) also have 'length'
 658                         // The extra typeof function check is to prevent crashes
 659                         // in Safari 2 (See: #3039)
 660                         // Tweaked logic slightly to handle Blackberry 4.7 RegExp issues #6930
 661                         var type = jQuery.type(array);
 662
 663                         if ( array.length == null || type === "string" || type === "function" || type === "regexp" || jQuery.isWindow( array ) ) {
 664                                 push.call( ret, array );
 665                         } else {
 666                                 jQuery.merge( ret, array );
 667                         }
 668                 }
 669
 670                 return ret;
 671         },
 672
 673         inArray: function( elem, array ) {
 674                 if ( array.indexOf ) {
 675                         return array.indexOf( elem );
 676                 }
 677
 678                 for ( var i = 0, length = array.length; i < length; i++ ) {
 679                         if ( array[ i ] === elem ) {
 680                                 return i;
 681                         }
 682                 }
 683
 684                 return -1;
 685         },
 686
 687         merge: function( first, second ) {
 688                 var i = first.length,
 689                         j = 0;
 690
 691                 if ( typeof second.length === "number" ) {
 692                         for ( var l = second.length; j < l; j++ ) {
 693                                 first[ i++ ] = second[ j ];
 694                         }
 695
 696                 } else {
 697                         while ( second[j] !== undefined ) {
 698                                 first[ i++ ] = second[ j++ ];
 699                         }
 700                 }
 701
 702                 first.length = i;
 703
 704                 return first;
 705         },
 706
 707         grep: function( elems, callback, inv ) {
 708                 var ret = [], retVal;
 709                 inv = !!inv;
 710
 711                 // Go through the array, only saving the items
 712                 // that pass the validator function
 713                 for ( var i = 0, length = elems.length; i < length; i++ ) {
 714                         retVal = !!callback( elems[ i ], i );
 715                         if ( inv !== retVal ) {
 716                                 ret.push( elems[ i ] );
 717                         }
 718                 }
 719
 720                 return ret;
 721         },
 722
 723         // arg is for internal usage only
 724         map: function( elems, callback, arg ) {
 725                 var ret = [], value;
 726
 727                 // Go through the array, translating each of the items to their
 728                 // new value (or values).
 729                 for ( var i = 0, length = elems.length; i < length; i++ ) {
 730                         value = callback( elems[ i ], i, arg );
 731
 732                         if ( value != null ) {
 733                                 ret[ ret.length ] = value;
 734                         }
 735                 }
 736
 737                 // Flatten any nested arrays
 738                 return ret.concat.apply( [], ret );
 739         },
 740
 741         // A global GUID counter for objects
 742         guid: 1,
 743
 744         proxy: function( fn, proxy, thisObject ) {
 745                 if ( arguments.length === 2 ) {
 746                         if ( typeof proxy === "string" ) {
 747                                 thisObject = fn;
 748                                 fn = thisObject[ proxy ];
 749                                 proxy = undefined;
 750
 751                         } else if ( proxy && !jQuery.isFunction( proxy ) ) {
 752                                 thisObject = proxy;
 753                                 proxy = undefined;
 754                         }
 755                 }
 756
 757                 if ( !proxy && fn ) {
 758                         proxy = function() {
 759                                 return fn.apply( thisObject || this, arguments );
 760                         };
 761                 }
 762
 763                 // Set the guid of unique handler to the same of original handler, so it can be removed
 764                 if ( fn ) {
 765                         proxy.guid = fn.guid = fn.guid || proxy.guid || jQuery.guid++;
 766                 }
 767
 768                 // So proxy can be declared as an argument
 769                 return proxy;
 770         },
 771
 772         // Mutifunctional method to get and set values to a collection
 773         // The value/s can be optionally by executed if its a function
 774         access: function( elems, key, value, exec, fn, pass ) {
 775                 var length = elems.length;
 776
 777                 // Setting many attributes
 778                 if ( typeof key === "object" ) {
 779                         for ( var k in key ) {
 780                                 jQuery.access( elems, k, key[k], exec, fn, value );
 781                         }
 782                         return elems;
 783                 }
 784
 785                 // Setting one attribute
 786                 if ( value !== undefined ) {
 787                         // Optionally, function values get executed if exec is true
 788                         exec = !pass && exec && jQuery.isFunction(value);
 789
 790                         for ( var i = 0; i < length; i++ ) {
 791                                 fn( elems[i], key, exec ? value.call( elems[i], i, fn( elems[i], key ) ) : value, pass );
 792                         }
 793
 794                         return elems;
 795                 }
 796
 797                 // Getting an attribute
 798                 return length ? fn( elems[0], key ) : undefined;
 799         },
 800
 801         now: function() {
 802                 return (new Date()).getTime();
 803         },
 804
 805         // Create a simple deferred (one callbacks list)
 806         _Deferred: function() {
 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                                 // done( f1, f2, ...)
 819                                 done: function() {
 820                                         if ( !cancelled ) {
 821                                                 var args = arguments,
 822                                                         i,
 823                                                         length,
 824                                                         elem,
 825                                                         type,
 826                                                         _fired;
 827                                                 if ( fired ) {
 828                                                         _fired = fired;
 829                                                         fired = 0;
 830                                                 }
 831                                                 for ( i = 0, length = args.length; i < length; i++ ) {
 832                                                         elem = args[ i ];
 833                                                         type = jQuery.type( elem );
 834                                                         if ( type === "array" ) {
 835                                                                 deferred.done.apply( deferred, elem );
 836                                                         } else if ( type === "function" ) {
 837                                                                 callbacks.push( elem );
 838                                                         }
 839                                                 }
 840                                                 if ( _fired ) {
 841                                                         deferred.resolveWith( _fired[ 0 ], _fired[ 1 ] );
 842                                                 }
 843                                         }
 844                                         return this;
 845                                 },
 846
 847                                 // resolve with given context and args
 848                                 resolveWith: function( context, args ) {
 849                                         if ( !cancelled && !fired && !firing ) {
 850                                                 firing = 1;
 851                                                 try {
 852                                                         while( callbacks[ 0 ] ) {
 853                                                                 callbacks.shift().apply( context, args );
 854                                                         }
 855                                                 }
 856                                                 finally {
 857                                                         fired = [ context, args ];
 858                                                         firing = 0;
 859                                                 }
 860                                         }
 861                                         return this;
 862                                 },
 863
 864                                 // resolve with this as context and given arguments
 865                                 resolve: function() {
 866                                         deferred.resolveWith( jQuery.isFunction( this.promise ) ? this.promise() : this, arguments );
 867                                         return this;
 868                                 },
 869
 870                                 // Has this deferred been resolved?
 871                                 isResolved: function() {
 872                                         return !!( firing || fired );
 873                                 },
 874
 875                                 // Cancel
 876                                 cancel: function() {
 877                                         cancelled = 1;
 878                                         callbacks = [];
 879                                         return this;
 880                                 }
 881                         };
 882
 883                 return deferred;
 884         },
 885
 886         // Full fledged deferred (two callbacks list)
 887         Deferred: function( func ) {
 888                 var deferred = jQuery._Deferred(),
 889                         failDeferred = jQuery._Deferred(),
 890                         promise,
 891                         invert;
 892                 // Add errorDeferred methods, then, promise and invert
 893                 jQuery.extend( deferred, {
 894                         then: function( doneCallbacks, failCallbacks ) {
 895                                 deferred.done( doneCallbacks ).fail( failCallbacks );
 896                                 return this;
 897                         },
 898                         fail: failDeferred.done,
 899                         rejectWith: failDeferred.resolveWith,
 900                         reject: failDeferred.resolve,
 901                         isRejected: failDeferred.isResolved,
 902                         // Get a promise for this deferred
 903                         // If obj is provided, the promise aspect is added to the object
 904                         promise: function( obj ) {
 905                                 if ( obj == null ) {
 906                                         if ( promise ) {
 907                                                 return promise;
 908                                         }
 909                                         promise = obj = {};
 910                                 }
 911                                 for( var methodName in promiseMethods ) {
 912                                         obj[ methodName ] = deferred[ methodName ];
 913                                 }
 914                                 return obj;
 915                         },
 916                         // Get the invert promise for this deferred
 917                         // If obj is provided, the invert promise aspect is added to the object
 918                         invert: function( obj ) {
 919                                 if ( obj == null ) {
 920                                         if ( invert ) {
 921                                                 return invert;
 922                                         }
 923                                         invert = obj = {};
 924                                 }
 925                                 for( var methodName in promiseMethods ) {
 926                                         obj[ methodName ] = promiseMethods[ methodName ] && deferred[ promiseMethods[methodName] ];
 927                                 }
 928                                 obj.then = invert.then || function( doneCallbacks, failCallbacks ) {
 929                                         deferred.done( failCallbacks ).fail( doneCallbacks );
 930                                         return this;
 931                                 };
 932                                 return obj;
 933                         }
 934                 } );
 935                 // Make sure only one callback list will be used
 936                 deferred.then( failDeferred.cancel, deferred.cancel );
 937                 // Unexpose cancel
 938                 delete deferred.cancel;
 939                 // Call given func if any
 940                 if ( func ) {
 941                         func.call( deferred, deferred );
 942                 }
 943                 return deferred;
 944         },
 945
 946         // Deferred helper
 947         when: function( object ) {
 948                 var args = arguments,
 949                         length = args.length,
 950                         deferred = length <= 1 && object && jQuery.isFunction( object.promise ) ?
 951                                 object :
 952                                 jQuery.Deferred(),
 953                         promise = deferred.promise(),
 954                         resolveArray;
 955
 956                 if ( length > 1 ) {
 957                         resolveArray = new Array( length );
 958                         jQuery.each( args, function( index, element ) {
 959                                 jQuery.when( element ).then( function( value ) {
 960                                         resolveArray[ index ] = arguments.length > 1 ? slice.call( arguments, 0 ) : value;
 961                                         if( ! --length ) {
 962                                                 deferred.resolveWith( promise, resolveArray );
 963                                         }
 964                                 }, deferred.reject );
 965                         } );
 966                 } else if ( deferred !== object ) {
 967                         deferred.resolve( object );
 968                 }
 969                 return promise;
 970         },
 971
 972         // Use of jQuery.browser is frowned upon.
 973         // More details: http://docs.jquery.com/Utilities/jQuery.browser
 974         uaMatch: function( ua ) {
 975                 ua = ua.toLowerCase();
 976
 977                 var match = rwebkit.exec( ua ) ||
 978                         ropera.exec( ua ) ||
 979                         rmsie.exec( ua ) ||
 980                         ua.indexOf("compatible") < 0 && rmozilla.exec( ua ) ||
 981                         [];
 982
 983                 return { browser: match[1] || "", version: match[2] || "0" };
 984         },
 985
 986         sub: function() {
 987                 function jQuerySubclass( selector, context ) {
 988                         return new jQuerySubclass.fn.init( selector, context );
 989                 }
 990                 jQuery.extend( true, jQuerySubclass, this );
 991                 jQuerySubclass.superclass = this;
 992                 jQuerySubclass.fn = jQuerySubclass.prototype = this();
 993                 jQuerySubclass.fn.constructor = jQuerySubclass;
 994                 jQuerySubclass.subclass = this.subclass;
 995                 jQuerySubclass.fn.init = function init( selector, context ) {
 996                         if ( context && context instanceof jQuery && !(context instanceof jQuerySubclass) ) {
 997                                 context = jQuerySubclass(context);
 998                         }
 999
1000                         return jQuery.fn.init.call( this, selector, context, rootjQuerySubclass );
1001                 };
1002                 jQuerySubclass.fn.init.prototype = jQuerySubclass.fn;
1003                 var rootjQuerySubclass = jQuerySubclass(document);
1004                 return jQuerySubclass;
1005         },
1006
1007         browser: {}
1008 });
1009
1010 // Create readyList deferred
1011 readyList = jQuery._Deferred();
1012
1013 // Populate the class2type map
1014 jQuery.each("Boolean Number String Function Array Date RegExp Object".split(" "), function(i, name) {
1015         class2type[ "[object " + name + "]" ] = name.toLowerCase();
1016 });
1017
1018 browserMatch = jQuery.uaMatch( userAgent );
1019 if ( browserMatch.browser ) {
1020         jQuery.browser[ browserMatch.browser ] = true;
1021         jQuery.browser.version = browserMatch.version;
1022 }
1023
1024 // Deprecated, use jQuery.browser.webkit instead
1025 if ( jQuery.browser.webkit ) {
1026         jQuery.browser.safari = true;
1027 }
1028
1029 if ( indexOf ) {
1030         jQuery.inArray = function( elem, array ) {
1031                 return indexOf.call( array, elem );
1032         };
1033 }
1034
1035 // IE doesn't match non-breaking spaces with \s
1036 if ( rnotwhite.test( "\xA0" ) ) {
1037         trimLeft = /^[\s\xA0]+/;
1038         trimRight = /[\s\xA0]+$/;
1039 }
1040
1041 // All jQuery objects should point back to these
1042 rootjQuery = jQuery(document);
1043
1044 // Cleanup functions for the document ready method
1045 if ( document.addEventListener ) {
1046         DOMContentLoaded = function() {
1047                 document.removeEventListener( "DOMContentLoaded", DOMContentLoaded, false );
1048                 jQuery.ready();
1049         };
1050
1051 } else if ( document.attachEvent ) {
1052         DOMContentLoaded = function() {
1053                 // Make sure body exists, at least, in case IE gets a little overzealous (ticket #5443).
1054                 if ( document.readyState === "complete" ) {
1055                         document.detachEvent( "onreadystatechange", DOMContentLoaded );
1056                         jQuery.ready();
1057                 }
1058         };
1059 }
1060
1061 // The DOM ready check for Internet Explorer
1062 function doScrollCheck() {
1063         if ( jQuery.isReady ) {
1064                 return;
1065         }
1066
1067         try {
1068                 // If IE is used, use the trick by Diego Perini
1069                 // http://javascript.nwbox.com/IEContentLoaded/
1070                 document.documentElement.doScroll("left");
1071         } catch(e) {
1072                 setTimeout( doScrollCheck, 1 );
1073                 return;
1074         }
1075
1076         // and execute any waiting functions
1077         jQuery.ready();
1078 }
1079
1080 // Expose jQuery to the global object
1081 return (window.jQuery = window.$ = jQuery);
1082
1083 })();