src/core.js

   1 /*
   2  * jQuery @VERSION - New Wave Javascript
   3  *
   4  * Copyright (c) 2008 John Resig (jquery.com)
   5  * Dual licensed under the MIT (MIT-LICENSE.txt)
   6  * and GPL (GPL-LICENSE.txt) licenses.
   7  *
   8  * $Date$
   9  * $Rev$
  10  */
  11
  12 // Map over jQuery in case of overwrite
  13 var _jQuery = window.jQuery,
  14 // Map over the $ in case of overwrite
  15         _$ = window.$;
  16
  17 var jQuery = window.jQuery = window.$ = function( selector, context ) {
  18         // The jQuery object is actually just the init constructor 'enhanced'
  19         return new jQuery.fn.init( selector, context );
  20 };
  21
  22 // A simple way to check for HTML strings or ID strings
  23 // (both of which we optimize for)
  24 var quickExpr = /^[^<]*(<(.|\s)+>)[^>]*$|^#([\w-]+)$/,
  25
  26 // Is it a simple selector
  27         isSimple = /^.[^:#\[\.]*$/,
  28
  29 // Will speed up references to undefined, and allows munging its name.
  30         undefined;
  31
  32 jQuery.fn = jQuery.prototype = {
  33         init: function( selector, context ) {
  34                 // Make sure that a selection was provided
  35                 selector = selector || document;
  36
  37                 // Handle $(DOMElement)
  38                 if ( selector.nodeType ) {
  39                         this[0] = selector;
  40                         this.length = 1;
  41                         this.context = selector;
  42                         return this;
  43                 }
  44                 // Handle HTML strings
  45                 if ( typeof selector === "string" ) {
  46                         // Are we dealing with HTML string or an ID?
  47                         var match = quickExpr.exec( selector );
  48
  49                         // Verify a match, and that no context was specified for #id
  50                         if ( match && (match[1] || !context) ) {
  51
  52                                 // HANDLE: $(html) -> $(array)
  53                                 if ( match[1] )
  54                                         selector = jQuery.clean( [ match[1] ], context );
  55
  56                                 // HANDLE: $("#id")
  57                                 else {
  58                                         var elem = document.getElementById( match[3] );
  59
  60                                         // Make sure an element was located
  61                                         if ( elem ){
  62                                                 // Handle the case where IE and Opera return items
  63                                                 // by name instead of ID
  64                                                 if ( elem.id != match[3] )
  65                                                         return jQuery().find( selector );
  66
  67                                                 // Otherwise, we inject the element directly into the jQuery object
  68                                                 var ret = jQuery( elem );
  69                                                 ret.context = document;
  70                                                 ret.selector = selector;
  71                                                 return ret;
  72                                         }
  73                                         selector = [];
  74                                 }
  75
  76                         // HANDLE: $(expr, [context])
  77                         // (which is just equivalent to: $(content).find(expr)
  78                         } else
  79                                 return jQuery( context ).find( selector );
  80
  81                 // HANDLE: $(function)
  82                 // Shortcut for document ready
  83                 } else if ( jQuery.isFunction( selector ) )
  84                         return jQuery( document )[ jQuery.fn.ready ? "ready" : "load" ]( selector );
  85
  86                 return this.setArray(jQuery.makeArray(selector));
  87         },
  88
  89         // Start with an empty selector
  90         selector: "",
  91
  92         // The current version of jQuery being used
  93         jquery: "@VERSION",
  94
  95         // The number of elements contained in the matched element set
  96         size: function() {
  97                 return this.length;
  98         },
  99
 100         // Get the Nth element in the matched element set OR
 101         // Get the whole matched element set as a clean array
 102         get: function( num ) {
 103                 return num === undefined ?
 104
 105                         // Return a 'clean' array
 106                         jQuery.makeArray( this ) :
 107
 108                         // Return just the object
 109                         this[ num ];
 110         },
 111
 112         // Take an array of elements and push it onto the stack
 113         // (returning the new matched element set)
 114         pushStack: function( elems, name, selector ) {
 115                 // Build a new jQuery matched element set
 116                 var ret = jQuery( elems );
 117
 118                 // Add the old object onto the stack (as a reference)
 119                 ret.prevObject = this;
 120
 121                 ret.context = this.context;
 122
 123                 if ( name === "find" )
 124                         ret.selector = this.selector + (this.selector ? " " : "") + selector;
 125                 else if ( name )
 126                         ret.selector = this.selector + "." + name + "(" + selector + ")";
 127
 128                 // Return the newly-formed element set
 129                 return ret;
 130         },
 131
 132         // Force the current matched set of elements to become
 133         // the specified array of elements (destroying the stack in the process)
 134         // You should use pushStack() in order to do this, but maintain the stack
 135         setArray: function( elems ) {
 136                 // Resetting the length to 0, then using the native Array push
 137                 // is a super-fast way to populate an object with array-like properties
 138                 this.length = 0;
 139                 Array.prototype.push.apply( this, elems );
 140
 141                 return this;
 142         },
 143
 144         // Execute a callback for every element in the matched set.
 145         // (You can seed the arguments with an array of args, but this is
 146         // only used internally.)
 147         each: function( callback, args ) {
 148                 return jQuery.each( this, callback, args );
 149         },
 150
 151         // Determine the position of an element within
 152         // the matched set of elements
 153         index: function( elem ) {
 154                 var ret = -1;
 155
 156                 // Locate the position of the desired element
 157                 return jQuery.inArray(
 158                         // If it receives a jQuery object, the first element is used
 159                         elem && elem.jquery ? elem[0] : elem
 160                 , this );
 161         },
 162
 163         attr: function( name, value, type ) {
 164                 var options = name;
 165
 166                 // Look for the case where we're accessing a style value
 167                 if ( typeof name === "string" )
 168                         if ( value === undefined )
 169                                 return this[0] && jQuery[ type || "attr" ]( this[0], name );
 170
 171                         else {
 172                                 options = {};
 173                                 options[ name ] = value;
 174                         }
 175
 176                 // Check to see if we're setting style values
 177                 return this.each(function(i){
 178                         // Set all the styles
 179                         for ( name in options )
 180                                 jQuery.attr(
 181                                         type ?
 182                                                 this.style :
 183                                                 this,
 184                                         name, jQuery.prop( this, options[ name ], type, i, name )
 185                                 );
 186                 });
 187         },
 188
 189         css: function( key, value ) {
 190                 // ignore negative width and height values
 191                 if ( (key == 'width' || key == 'height') && parseFloat(value) < 0 )
 192                         value = undefined;
 193                 return this.attr( key, value, "curCSS" );
 194         },
 195
 196         text: function( text ) {
 197                 if ( typeof text !== "object" && text != null )
 198                         return this.empty().append( (this[0] && this[0].ownerDocument || document).createTextNode( text ) );
 199
 200                 var ret = "";
 201
 202                 jQuery.each( text || this, function(){
 203                         jQuery.each( this.childNodes, function(){
 204                                 if ( this.nodeType != 8 )
 205                                         ret += this.nodeType != 1 ?
 206                                                 this.nodeValue :
 207                                                 jQuery.fn.text( [ this ] );
 208                         });
 209                 });
 210
 211                 return ret;
 212         },
 213
 214         wrapAll: function( html ) {
 215                 if ( this[0] )
 216                         // The elements to wrap the target around
 217                         jQuery( html, this[0].ownerDocument )
 218                                 .clone()
 219                                 .insertBefore( this[0] )
 220                                 .map(function(){
 221                                         var elem = this;
 222
 223                                         while ( elem.firstChild )
 224                                                 elem = elem.firstChild;
 225
 226                                         return elem;
 227                                 })
 228                                 .append(this);
 229
 230                 return this;
 231         },
 232
 233         wrapInner: function( html ) {
 234                 return this.each(function(){
 235                         jQuery( this ).contents().wrapAll( html );
 236                 });
 237         },
 238
 239         wrap: function( html ) {
 240                 return this.each(function(){
 241                         jQuery( this ).wrapAll( html );
 242                 });
 243         },
 244
 245         append: function() {
 246                 return this.domManip(arguments, true, function(elem){
 247                         if (this.nodeType == 1)
 248                                 this.appendChild( elem );
 249                 });
 250         },
 251
 252         prepend: function() {
 253                 return this.domManip(arguments, true, function(elem){
 254                         if (this.nodeType == 1)
 255                                 this.insertBefore( elem, this.firstChild );
 256                 });
 257         },
 258
 259         before: function() {
 260                 return this.domManip(arguments, false, function(elem){
 261                         this.parentNode.insertBefore( elem, this );
 262                 });
 263         },
 264
 265         after: function() {
 266                 return this.domManip(arguments, false, function(elem){
 267                         this.parentNode.insertBefore( elem, this.nextSibling );
 268                 });
 269         },
 270
 271         end: function() {
 272                 return this.prevObject || jQuery( [] );
 273         },
 274
 275         find: function( selector ) {
 276                 var elems = jQuery.map(this, function(elem){
 277                         return jQuery.find( selector, elem );
 278                 });
 279
 280                 return this.pushStack( /[^+>] [^+>]/.test( selector ) ?
 281                         jQuery.unique( elems ) :
 282                         elems, "find", selector );
 283         },
 284
 285         clone: function( events ) {
 286                 // Do the clone
 287                 var ret = this.map(function(){
 288                         if ( jQuery.browser.msie && !jQuery.isXMLDoc(this) ) {
 289                                 // IE copies events bound via attachEvent when
 290                                 // using cloneNode. Calling detachEvent on the
 291                                 // clone will also remove the events from the orignal
 292                                 // In order to get around this, we use innerHTML.
 293                                 // Unfortunately, this means some modifications to
 294                                 // attributes in IE that are actually only stored
 295                                 // as properties will not be copied (such as the
 296                                 // the name attribute on an input).
 297                                 var clone = this.cloneNode(true),
 298                                         container = document.createElement("div");
 299                                 container.appendChild(clone);
 300                                 return jQuery.clean([container.innerHTML])[0];
 301                         } else
 302                                 return this.cloneNode(true);
 303                 });
 304
 305                 // Need to set the expando to null on the cloned set if it exists
 306                 // removeData doesn't work here, IE removes it from the original as well
 307                 // this is primarily for IE but the data expando shouldn't be copied over in any browser
 308                 var clone = ret.find("*").andSelf().each(function(){
 309                         if ( this[ expando ] !== undefined )
 310                                 this[ expando ] = null;
 311                 });
 312
 313                 // Copy the events from the original to the clone
 314                 if ( events === true )
 315                         this.find("*").andSelf().each(function(i){
 316                                 if (this.nodeType == 3)
 317                                         return;
 318                                 var events = jQuery.data( this, "events" );
 319
 320                                 for ( var type in events )
 321                                         for ( var handler in events[ type ] )
 322                                                 jQuery.event.add( clone[ i ], type, events[ type ][ handler ], events[ type ][ handler ].data );
 323                         });
 324
 325                 // Return the cloned set
 326                 return ret;
 327         },
 328
 329         filter: function( selector ) {
 330                 return this.pushStack(
 331                         jQuery.isFunction( selector ) &&
 332                         jQuery.grep(this, function(elem, i){
 333                                 return selector.call( elem, i );
 334                         }) ||
 335
 336                         jQuery.multiFilter( selector, this ), "filter", selector );
 337         },
 338
 339         not: function( selector ) {
 340                 if ( typeof selector === "string" )
 341                         // test special case where just one selector is passed in
 342                         if ( isSimple.test( selector ) )
 343                                 return this.pushStack( jQuery.multiFilter( selector, this, true ), "not", selector );
 344                         else
 345                                 selector = jQuery.multiFilter( selector, this );
 346
 347                 var isArrayLike = selector.length && selector[selector.length - 1] !== undefined && !selector.nodeType;
 348                 return this.filter(function() {
 349                         return isArrayLike ? jQuery.inArray( this, selector ) < 0 : this != selector;
 350                 });
 351         },
 352
 353         add: function( selector ) {
 354                 return this.pushStack( jQuery.unique( jQuery.merge(
 355                         this.get(),
 356                         typeof selector === "string" ?
 357                                 jQuery( selector ) :
 358                                 jQuery.makeArray( selector )
 359                 )));
 360         },
 361
 362         is: function( selector ) {
 363                 return !!selector && jQuery.multiFilter( selector, this ).length > 0;
 364         },
 365
 366         hasClass: function( selector ) {
 367                 return !!selector && this.is( "." + selector );
 368         },
 369
 370         val: function( value ) {
 371                 if ( value === undefined ) {
 372                         var elem = this[0];
 373
 374                         if ( elem ) {
 375                                 if( jQuery.nodeName( elem, 'option' ) )
 376                                         return (elem.attributes.value || {}).specified ? elem.value : elem.text;
 377
 378                                 // We need to handle select boxes special
 379                                 if ( jQuery.nodeName( elem, "select" ) ) {
 380                                         var index = elem.selectedIndex,
 381                                                 values = [],
 382                                                 options = elem.options,
 383                                                 one = elem.type == "select-one";
 384
 385                                         // Nothing was selected
 386                                         if ( index < 0 )
 387                                                 return null;
 388
 389                                         // Loop through all the selected options
 390                                         for ( var i = one ? index : 0, max = one ? index + 1 : options.length; i < max; i++ ) {
 391                                                 var option = options[ i ];
 392
 393                                                 if ( option.selected ) {
 394                                                         // Get the specifc value for the option
 395                                                         value = jQuery(option).val();
 396
 397                                                         // We don't need an array for one selects
 398                                                         if ( one )
 399                                                                 return value;
 400
 401                                                         // Multi-Selects return an array
 402                                                         values.push( value );
 403                                                 }
 404                                         }
 405
 406                                         return values;
 407                                 }
 408
 409                                 // Everything else, we just grab the value
 410                                 return (elem.value || "").replace(/\r/g, "");
 411
 412                         }
 413
 414                         return undefined;
 415                 }
 416
 417                 if ( typeof value === "number" )
 418                         value += '';
 419
 420                 return this.each(function(){
 421                         if ( this.nodeType != 1 )
 422                                 return;
 423
 424                         if ( jQuery.isArray(value) && /radio|checkbox/.test( this.type ) )
 425                                 this.checked = (jQuery.inArray(this.value, value) >= 0 ||
 426                                         jQuery.inArray(this.name, value) >= 0);
 427
 428                         else if ( jQuery.nodeName( this, "select" ) ) {
 429                                 var values = jQuery.makeArray(value);
 430
 431                                 jQuery( "option", this ).each(function(){
 432                                         this.selected = (jQuery.inArray( this.value, values ) >= 0 ||
 433                                                 jQuery.inArray( this.text, values ) >= 0);
 434                                 });
 435
 436                                 if ( !values.length )
 437                                         this.selectedIndex = -1;
 438
 439                         } else
 440                                 this.value = value;
 441                 });
 442         },
 443
 444         html: function( value ) {
 445                 return value === undefined ?
 446                         (this[0] ?
 447                                 this[0].innerHTML :
 448                                 null) :
 449                         this.empty().append( value );
 450         },
 451
 452         replaceWith: function( value ) {
 453                 return this.after( value ).remove();
 454         },
 455
 456         eq: function( i ) {
 457                 return this.slice( i, +i + 1 );
 458         },
 459
 460         slice: function() {
 461                 return this.pushStack( Array.prototype.slice.apply( this, arguments ),
 462                         "slice", Array.prototype.slice.call(arguments).join(",") );
 463         },
 464
 465         map: function( callback ) {
 466                 return this.pushStack( jQuery.map(this, function(elem, i){
 467                         return callback.call( elem, i, elem );
 468                 }));
 469         },
 470
 471         andSelf: function() {
 472                 return this.add( this.prevObject );
 473         },
 474
 475         data: function( key, value ){
 476                 var parts = key.split(".");
 477                 parts[1] = parts[1] ? "." + parts[1] : "";
 478
 479                 if ( value === undefined ) {
 480                         var data = this.triggerHandler("getData" + parts[1] + "!", [parts[0]]);
 481
 482                         if ( data === undefined && this.length )
 483                                 data = jQuery.data( this[0], key );
 484
 485                         return data == null && parts[1] ?
 486                                 this.data( parts[0] ) :
 487                                 data;
 488                 } else
 489                         return this.trigger("setData" + parts[1] + "!", [parts[0], value]).each(function(){
 490                                 jQuery.data( this, key, value );
 491                         });
 492         },
 493
 494         removeData: function( key ){
 495                 return this.each(function(){
 496                         jQuery.removeData( this, key );
 497                 });
 498         },
 499
 500         domManip: function( args, table, callback ) {
 501                 if ( this[0] ) {
 502                         var fragment = document.createDocumentFragment(),
 503                                 scripts = jQuery.clean( args, this[0].ownerDocument, fragment ),
 504                                 first = fragment.firstChild,
 505                                 extra = this.length > 1 ? fragment.cloneNode(true) : fragment;
 506
 507                         if ( first )
 508                                 for ( var i = 0, l = this.length; i < l; i++ )
 509                                         callback.call( root(this[i], first), i > 0 ? extra.cloneNode(true) : fragment );
 510
 511                         if ( scripts )
 512                                 jQuery.each( scripts, evalScript );
 513                 }
 514
 515                 return this;
 516
 517                 function root( elem, cur ) {
 518                         return table && jQuery.nodeName(elem, "table") && jQuery.nodeName(cur, "tr") ?
 519                                 (elem.getElementsByTagName("tbody")[0] ||
 520                                 elem.appendChild(elem.ownerDocument.createElement("tbody"))) :
 521                                 elem;
 522                 }
 523         }
 524 };
 525
 526 // Give the init function the jQuery prototype for later instantiation
 527 jQuery.fn.init.prototype = jQuery.fn;
 528
 529 function evalScript( i, elem ) {
 530         if ( elem.src )
 531                 jQuery.ajax({
 532                         url: elem.src,
 533                         async: false,
 534                         dataType: "script"
 535                 });
 536
 537         else
 538                 jQuery.globalEval( elem.text || elem.textContent || elem.innerHTML || "" );
 539
 540         if ( elem.parentNode )
 541                 elem.parentNode.removeChild( elem );
 542 }
 543
 544 function now(){
 545         return +new Date;
 546 }
 547
 548 jQuery.extend = jQuery.fn.extend = function() {
 549         // copy reference to target object
 550         var target = arguments[0] || {}, i = 1, length = arguments.length, deep = false, options;
 551
 552         // Handle a deep copy situation
 553         if ( typeof target === "boolean" ) {
 554                 deep = target;
 555                 target = arguments[1] || {};
 556                 // skip the boolean and the target
 557                 i = 2;
 558         }
 559
 560         // Handle case when target is a string or something (possible in deep copy)
 561         if ( typeof target !== "object" && !jQuery.isFunction(target) )
 562                 target = {};
 563
 564         // extend jQuery itself if only one argument is passed
 565         if ( length == i ) {
 566                 target = this;
 567                 --i;
 568         }
 569
 570         for ( ; i < length; i++ )
 571                 // Only deal with non-null/undefined values
 572                 if ( (options = arguments[ i ]) != null )
 573                         // Extend the base object
 574                         for ( var name in options ) {
 575                                 var src = target[ name ], copy = options[ name ];
 576
 577                                 // Prevent never-ending loop
 578                                 if ( target === copy )
 579                                         continue;
 580
 581                                 // Recurse if we're merging object values
 582                                 if ( deep && copy && typeof copy === "object" && !copy.nodeType )
 583                                         target[ name ] = jQuery.extend( deep,
 584                                                 // Never move original objects, clone them
 585                                                 src || ( copy.length != null ? [ ] : { } )
 586                                         , copy );
 587
 588                                 // Don't bring in undefined values
 589                                 else if ( copy !== undefined )
 590                                         target[ name ] = copy;
 591
 592                         }
 593
 594         // Return the modified object
 595         return target;
 596 };
 597
 598 var expando = "jQuery" + now(), uuid = 0, windowData = {},
 599         // exclude the following css properties to add px
 600         exclude = /z-?index|font-?weight|opacity|zoom|line-?height/i,
 601         // cache defaultView
 602         defaultView = document.defaultView || {},
 603         toString = Object.prototype.toString;
 604
 605 jQuery.extend({
 606         noConflict: function( deep ) {
 607                 window.$ = _$;
 608
 609                 if ( deep )
 610                         window.jQuery = _jQuery;
 611
 612                 return jQuery;
 613         },
 614
 615         // See test/unit/core.js for details concerning isFunction.
 616         // Since version 1.3, DOM methods and functions like alert
 617         // aren't supported. They return false on IE (#2968).
 618         isFunction: function( obj ) {
 619                 return toString.call(obj) === "[object Function]";
 620         },
 621
 622         isArray: function( obj ) {
 623                 return toString.call(obj) === "[object Array]";
 624         },
 625
 626         // check if an element is in a (or is an) XML document
 627         isXMLDoc: function( elem ) {
 628                 return elem.documentElement && !elem.body ||
 629                         elem.tagName && elem.ownerDocument && !elem.ownerDocument.body;
 630         },
 631
 632         // Evalulates a script in a global context
 633         globalEval: function( data ) {
 634                 data = jQuery.trim( data );
 635
 636                 if ( data ) {
 637                         // Inspired by code by Andrea Giammarchi
 638                         // http://webreflection.blogspot.com/2007/08/global-scope-evaluation-and-dom.html
 639                         var head = document.getElementsByTagName("head")[0] || document.documentElement,
 640                                 script = document.createElement("script");
 641
 642                         script.type = "text/javascript";
 643                         if ( jQuery.browser.msie )
 644                                 script.text = data;
 645                         else
 646                                 script.appendChild( document.createTextNode( data ) );
 647
 648                         // Use insertBefore instead of appendChild  to circumvent an IE6 bug.
 649                         // This arises when a base node is used (#2709).
 650                         head.insertBefore( script, head.firstChild );
 651                         head.removeChild( script );
 652                 }
 653         },
 654
 655         nodeName: function( elem, name ) {
 656                 return elem.nodeName && elem.nodeName.toUpperCase() == name.toUpperCase();
 657         },
 658
 659         cache: {},
 660
 661         data: function( elem, name, data ) {
 662                 elem = elem == window ?
 663                         windowData :
 664                         elem;
 665
 666                 var id = elem[ expando ];
 667
 668                 // Compute a unique ID for the element
 669                 if ( !id )
 670                         id = elem[ expando ] = ++uuid;
 671
 672                 // Only generate the data cache if we're
 673                 // trying to access or manipulate it
 674                 if ( name && !jQuery.cache[ id ] )
 675                         jQuery.cache[ id ] = {};
 676
 677                 // Prevent overriding the named cache with undefined values
 678                 if ( data !== undefined )
 679                         jQuery.cache[ id ][ name ] = data;
 680
 681                 // Return the named cache data, or the ID for the element
 682                 return name ?
 683                         jQuery.cache[ id ][ name ] || null :
 684                         id;
 685         },
 686
 687         removeData: function( elem, name ) {
 688                 elem = elem == window ?
 689                         windowData :
 690                         elem;
 691
 692                 var id = elem[ expando ];
 693
 694                 // If we want to remove a specific section of the element's data
 695                 if ( name ) {
 696                         if ( jQuery.cache[ id ] ) {
 697                                 // Remove the section of cache data
 698                                 delete jQuery.cache[ id ][ name ];
 699
 700                                 // If we've removed all the data, remove the element's cache
 701                                 name = "";
 702
 703                                 for ( name in jQuery.cache[ id ] )
 704                                         break;
 705
 706                                 if ( !name )
 707                                         jQuery.removeData( elem );
 708                         }
 709
 710                 // Otherwise, we want to remove all of the element's data
 711                 } else {
 712                         // Clean up the element expando
 713                         try {
 714                                 delete elem[ expando ];
 715                         } catch(e){
 716                                 // IE has trouble directly removing the expando
 717                                 // but it's ok with using removeAttribute
 718                                 if ( elem.removeAttribute )
 719                                         elem.removeAttribute( expando );
 720                         }
 721
 722                         // Completely remove the data cache
 723                         delete jQuery.cache[ id ];
 724                 }
 725         },
 726
 727         // args is for internal usage only
 728         each: function( object, callback, args ) {
 729                 var name, i = 0, length = object.length;
 730
 731                 if ( args ) {
 732                         if ( length === undefined ) {
 733                                 for ( name in object )
 734                                         if ( callback.apply( object[ name ], args ) === false )
 735                                                 break;
 736                         } else
 737                                 for ( ; i < length; )
 738                                         if ( callback.apply( object[ i++ ], args ) === false )
 739                                                 break;
 740
 741                 // A special, fast, case for the most common use of each
 742                 } else {
 743                         if ( length === undefined ) {
 744                                 for ( name in object )
 745                                         if ( callback.call( object[ name ], name, object[ name ] ) === false )
 746                                                 break;
 747                         } else
 748                                 for ( var value = object[0];
 749                                         i < length && callback.call( value, i, value ) !== false; value = object[++i] ){}
 750                 }
 751
 752                 return object;
 753         },
 754
 755         prop: function( elem, value, type, i, name ) {
 756                 // Handle executable functions
 757                 if ( jQuery.isFunction( value ) )
 758                         value = value.call( elem, i );
 759
 760                 // Handle passing in a number to a CSS property
 761                 return typeof value === "number" && type == "curCSS" && !exclude.test( name ) ?
 762                         value + "px" :
 763                         value;
 764         },
 765
 766         className: {
 767                 // internal only, use addClass("class")
 768                 add: function( elem, classNames ) {
 769                         jQuery.each((classNames || "").split(/\s+/), function(i, className){
 770                                 if ( elem.nodeType == 1 && !jQuery.className.has( elem.className, className ) )
 771                                         elem.className += (elem.className ? " " : "") + className;
 772                         });
 773                 },
 774
 775                 // internal only, use removeClass("class")
 776                 remove: function( elem, classNames ) {
 777                         if (elem.nodeType == 1)
 778                                 elem.className = classNames !== undefined ?
 779                                         jQuery.grep(elem.className.split(/\s+/), function(className){
 780                                                 return !jQuery.className.has( classNames, className );
 781                                         }).join(" ") :
 782                                         "";
 783                 },
 784
 785                 // internal only, use hasClass("class")
 786                 has: function( elem, className ) {
 787                         return jQuery.inArray( className, (elem.className || elem).toString().split(/\s+/) ) > -1;
 788                 }
 789         },
 790
 791         // A method for quickly swapping in/out CSS properties to get correct calculations
 792         swap: function( elem, options, callback ) {
 793                 var old = {};
 794                 // Remember the old values, and insert the new ones
 795                 for ( var name in options ) {
 796                         old[ name ] = elem.style[ name ];
 797                         elem.style[ name ] = options[ name ];
 798                 }
 799
 800                 callback.call( elem );
 801
 802                 // Revert the old values
 803                 for ( var name in options )
 804                         elem.style[ name ] = old[ name ];
 805         },
 806
 807         css: function( elem, name, force ) {
 808                 if ( name == "width" || name == "height" ) {
 809                         var val, props = { position: "absolute", visibility: "hidden", display:"block" }, which = name == "width" ? [ "Left", "Right" ] : [ "Top", "Bottom" ];
 810
 811                         function getWH() {
 812                                 val = name == "width" ? elem.offsetWidth : elem.offsetHeight;
 813                                 var padding = 0, border = 0;
 814                                 jQuery.each( which, function() {
 815                                         padding += parseFloat(jQuery.curCSS( elem, "padding" + this, true)) || 0;
 816                                         border += parseFloat(jQuery.curCSS( elem, "border" + this + "Width", true)) || 0;
 817                                 });
 818                                 val -= Math.round(padding + border);
 819                         }
 820
 821                         if ( jQuery(elem).is(":visible") )
 822                                 getWH();
 823                         else
 824                                 jQuery.swap( elem, props, getWH );
 825
 826                         return Math.max(0, val);
 827                 }
 828
 829                 return jQuery.curCSS( elem, name, force );
 830         },
 831
 832         curCSS: function( elem, name, force ) {
 833                 var ret, style = elem.style;
 834
 835                 // A helper method for determining if an element's values are broken
 836                 function color( elem ) {
 837                         if ( !jQuery.browser.safari )
 838                                 return false;
 839
 840                         // defaultView is cached
 841                         var ret = defaultView.getComputedStyle( elem, null );
 842                         return !ret || ret.getPropertyValue("color") == "";
 843                 }
 844
 845                 // We need to handle opacity special in IE
 846                 if ( name == "opacity" && jQuery.browser.msie ) {
 847                         ret = jQuery.attr( style, "opacity" );
 848
 849                         return ret == "" ?
 850                                 "1" :
 851                                 ret;
 852                 }
 853                 // Opera sometimes will give the wrong display answer, this fixes it, see #2037
 854                 if ( jQuery.browser.opera && name == "display" ) {
 855                         var save = style.outline;
 856                         style.outline = "0 solid black";
 857                         style.outline = save;
 858                 }
 859
 860                 // Make sure we're using the right name for getting the float value
 861                 if ( name.match( /float/i ) )
 862                         name = styleFloat;
 863
 864                 if ( !force && style && style[ name ] )
 865                         ret = style[ name ];
 866
 867                 else if ( defaultView.getComputedStyle ) {
 868
 869                         // Only "float" is needed here
 870                         if ( name.match( /float/i ) )
 871                                 name = "float";
 872
 873                         name = name.replace( /([A-Z])/g, "-$1" ).toLowerCase();
 874
 875                         var computedStyle = defaultView.getComputedStyle( elem, null );
 876
 877                         if ( computedStyle && !color( elem ) )
 878                                 ret = computedStyle.getPropertyValue( name );
 879
 880                         // If the element isn't reporting its values properly in Safari
 881                         // then some display: none elements are involved
 882                         else {
 883                                 var swap = [], stack = [], a = elem, i = 0;
 884
 885                                 // Locate all of the parent display: none elements
 886                                 for ( ; a && color(a); a = a.parentNode )
 887                                         stack.unshift(a);
 888
 889                                 // Go through and make them visible, but in reverse
 890                                 // (It would be better if we knew the exact display type that they had)
 891                                 for ( ; i < stack.length; i++ )
 892                                         if ( color( stack[ i ] ) ) {
 893                                                 swap[ i ] = stack[ i ].style.display;
 894                                                 stack[ i ].style.display = "block";
 895                                         }
 896
 897                                 // Since we flip the display style, we have to handle that
 898                                 // one special, otherwise get the value
 899                                 ret = name == "display" && swap[ stack.length - 1 ] != null ?
 900                                         "none" :
 901                                         ( computedStyle && computedStyle.getPropertyValue( name ) ) || "";
 902
 903                                 // Finally, revert the display styles back
 904                                 for ( i = 0; i < swap.length; i++ )
 905                                         if ( swap[ i ] != null )
 906                                                 stack[ i ].style.display = swap[ i ];
 907                         }
 908
 909                         // We should always get a number back from opacity
 910                         if ( name == "opacity" && ret == "" )
 911                                 ret = "1";
 912
 913                 } else if ( elem.currentStyle ) {
 914                         var camelCase = name.replace(/\-(\w)/g, function(all, letter){
 915                                 return letter.toUpperCase();
 916                         });
 917
 918                         ret = elem.currentStyle[ name ] || elem.currentStyle[ camelCase ];
 919
 920                         // From the awesome hack by Dean Edwards
 921                         // http://erik.eae.net/archives/2007/07/27/18.54.15/#comment-102291
 922
 923                         // If we're not dealing with a regular pixel number
 924                         // but a number that has a weird ending, we need to convert it to pixels
 925                         if ( !/^\d+(px)?$/i.test( ret ) && /^\d/.test( ret ) ) {
 926                                 // Remember the original values
 927                                 var left = style.left, rsLeft = elem.runtimeStyle.left;
 928
 929                                 // Put in the new values to get a computed value out
 930                                 elem.runtimeStyle.left = elem.currentStyle.left;
 931                                 style.left = ret || 0;
 932                                 ret = style.pixelLeft + "px";
 933
 934                                 // Revert the changed values
 935                                 style.left = left;
 936                                 elem.runtimeStyle.left = rsLeft;
 937                         }
 938                 }
 939
 940                 return ret;
 941         },
 942
 943         clean: function( elems, context, fragment ) {
 944                 var ret = [], scripts = [];
 945                 context = context || document;
 946
 947                 // !context.createElement fails in IE with an error but returns typeof 'object'
 948                 if ( typeof context.createElement === "undefined" )
 949                         context = context.ownerDocument || context[0] && context[0].ownerDocument || document;
 950
 951                 jQuery.each(elems, function(i, elem){
 952                         if ( typeof elem === "number" )
 953                                 elem += '';
 954
 955                         if ( !elem )
 956                                 return;
 957
 958                         // Convert html string into DOM nodes
 959                         if ( typeof elem === "string" ) {
 960                                 // Fix "XHTML"-style tags in all browsers
 961                                 elem = elem.replace(/(<(\w+)[^>]*?)\/>/g, function(all, front, tag){
 962                                         return tag.match(/^(abbr|br|col|img|input|link|meta|param|hr|area|embed)$/i) ?
 963                                                 all :
 964                                                 front + "></" + tag + ">";
 965                                 });
 966
 967                                 // Trim whitespace, otherwise indexOf won't work as expected
 968                                 var tags = jQuery.trim( elem ).toLowerCase(), div = context.createElement("div");
 969
 970                                 var wrap =
 971                                         // option or optgroup
 972                                         !tags.indexOf("<opt") &&
 973                                         [ 1, "<select multiple='multiple'>", "</select>" ] ||
 974
 975                                         !tags.indexOf("<leg") &&
 976                                         [ 1, "<fieldset>", "</fieldset>" ] ||
 977
 978                                         tags.match(/^<(thead|tbody|tfoot|colg|cap)/) &&
 979                                         [ 1, "<table>", "</table>" ] ||
 980
 981                                         !tags.indexOf("<tr") &&
 982                                         [ 2, "<table><tbody>", "</tbody></table>" ] ||
 983
 984                                         // <thead> matched above
 985                                         (!tags.indexOf("<td") || !tags.indexOf("<th")) &&
 986                                         [ 3, "<table><tbody><tr>", "</tr></tbody></table>" ] ||
 987
 988                                         !tags.indexOf("<col") &&
 989                                         [ 2, "<table><tbody></tbody><colgroup>", "</colgroup></table>" ] ||
 990
 991                                         // IE can't serialize <link> and <script> tags normally
 992                                         jQuery.browser.msie &&
 993                                         [ 1, "div<div>", "</div>" ] ||
 994
 995                                         [ 0, "", "" ];
 996
 997                                 // Go to html and back, then peel off extra wrappers
 998                                 div.innerHTML = wrap[1] + elem + wrap[2];
 999
1000                                 // Move to the right depth
1001                                 while ( wrap[0]-- )
1002                                         div = div.lastChild;
1003
1004                                 // Remove IE's autoinserted <tbody> from table fragments
1005                                 if ( jQuery.browser.msie ) {
1006
1007                                         // String was a <table>, *may* have spurious <tbody>
1008                                         var tbody = !tags.indexOf("<table") && tags.indexOf("<tbody") < 0 ?
1009                                                 div.firstChild && div.firstChild.childNodes :
1010
1011                                                 // String was a bare <thead> or <tfoot>
1012                                                 wrap[1] == "<table>" && tags.indexOf("<tbody") < 0 ?
1013                                                         div.childNodes :
1014                                                         [];
1015
1016                                         for ( var j = tbody.length - 1; j >= 0 ; --j )
1017                                                 if ( jQuery.nodeName( tbody[ j ], "tbody" ) && !tbody[ j ].childNodes.length )
1018                                                         tbody[ j ].parentNode.removeChild( tbody[ j ] );
1019
1020                                         // IE completely kills leading whitespace when innerHTML is used
1021                                         if ( /^\s/.test( elem ) )
1022                                                 div.insertBefore( context.createTextNode( elem.match(/^\s*/)[0] ), div.firstChild );
1023
1024                                 }
1025
1026                                 if ( fragment ) {
1027                                         var found = div.getElementsByTagName("script");
1028
1029                                         while ( found.length ) {
1030                                                 scripts.push( found[0] );
1031                                                 found[0].parentNode.removeChild( found[0] );
1032                                         }
1033                                 }
1034
1035                                 elem = jQuery.makeArray( div.childNodes );
1036                         }
1037
1038                         if ( elem.nodeType )
1039                                 ret.push( elem );
1040                         else
1041                                 ret = jQuery.merge( ret, elem );
1042
1043                 });
1044
1045                 if ( fragment ) {
1046                         for ( var i = 0; ret[i]; i++ ) {
1047                                 if ( jQuery.nodeName( ret[i], "script" ) ) {
1048                                         ret[i].parentNode.removeChild( ret[i] );
1049                                 } else {
1050                                         if ( ret[i].nodeType === 1 )
1051                                                 ret = jQuery.merge( ret, ret[i].getElementsByTagName("script"));
1052                                         fragment.appendChild( ret[i] );
1053                                 }
1054                         }
1055
1056                         return scripts;
1057                 }
1058
1059                 return ret;
1060         },
1061
1062         attr: function( elem, name, value ) {
1063                 // don't set attributes on text and comment nodes
1064                 if (!elem || elem.nodeType == 3 || elem.nodeType == 8)
1065                         return undefined;
1066
1067                 var notxml = !jQuery.isXMLDoc( elem ),
1068                         // Whether we are setting (or getting)
1069                         set = value !== undefined,
1070                         msie = jQuery.browser.msie;
1071
1072                 // Try to normalize/fix the name
1073                 name = notxml && jQuery.props[ name ] || name;
1074
1075                 // Only do all the following if this is a node (faster for style)
1076                 // IE elem.getAttribute passes even for style
1077                 if ( elem.tagName ) {
1078
1079                         // These attributes require special treatment
1080                         var special = /href|src|style/.test( name );
1081
1082                         // Safari mis-reports the default selected property of a hidden option
1083                         // Accessing the parent's selectedIndex property fixes it
1084                         if ( name == "selected" && jQuery.browser.safari )
1085                                 elem.parentNode.selectedIndex;
1086
1087                         // If applicable, access the attribute via the DOM 0 way
1088                         if ( name in elem && notxml && !special ) {
1089                                 if ( set ){
1090                                         // We can't allow the type property to be changed (since it causes problems in IE)
1091                                         if ( name == "type" && jQuery.nodeName( elem, "input" ) && elem.parentNode )
1092                                                 throw "type property can't be changed";
1093
1094                                         elem[ name ] = value;
1095                                 }
1096
1097                                 // browsers index elements by id/name on forms, give priority to attributes.
1098                                 if( jQuery.nodeName( elem, "form" ) && elem.getAttributeNode(name) )
1099                                         return elem.getAttributeNode( name ).nodeValue;
1100
1101                                 return elem[ name ];
1102                         }
1103
1104                         if ( msie && notxml &&  name == "style" )
1105                                 return jQuery.attr( elem.style, "cssText", value );
1106
1107                         if ( set )
1108                                 // convert the value to a string (all browsers do this but IE) see #1070
1109                                 elem.setAttribute( name, "" + value );
1110
1111                         var attr = msie && notxml && special
1112                                         // Some attributes require a special call on IE
1113                                         ? elem.getAttribute( name, 2 )
1114                                         : elem.getAttribute( name );
1115
1116                         // Non-existent attributes return null, we normalize to undefined
1117                         return attr === null ? undefined : attr;
1118                 }
1119
1120                 // elem is actually elem.style ... set the style
1121
1122                 // IE uses filters for opacity
1123                 if ( msie && name == "opacity" ) {
1124                         if ( set ) {
1125                                 // IE has trouble with opacity if it does not have layout
1126                                 // Force it by setting the zoom level
1127                                 elem.zoom = 1;
1128
1129                                 // Set the alpha filter to set the opacity
1130                                 elem.filter = (elem.filter || "").replace( /alpha\([^)]*\)/, "" ) +
1131                                         (parseInt( value ) + '' == "NaN" ? "" : "alpha(opacity=" + value * 100 + ")");
1132                         }
1133
1134                         return elem.filter && elem.filter.indexOf("opacity=") >= 0 ?
1135                                 (parseFloat( elem.filter.match(/opacity=([^)]*)/)[1] ) / 100) + '':
1136                                 "";
1137                 }
1138
1139                 name = name.replace(/-([a-z])/ig, function(all, letter){
1140                         return letter.toUpperCase();
1141                 });
1142
1143                 if ( set )
1144                         elem[ name ] = value;
1145
1146                 return elem[ name ];
1147         },
1148
1149         trim: function( text ) {
1150                 return (text || "").replace( /^\s+|\s+$/g, "" );
1151         },
1152
1153         makeArray: function( array ) {
1154                 var ret = [];
1155
1156                 if( array != null ){
1157                         var i = array.length;
1158                         // The window, strings (and functions) also have 'length'
1159                         if( i == null || typeof array === "string" || jQuery.isFunction(array) || array.setInterval )
1160                                 ret[0] = array;
1161                         else
1162                                 while( i )
1163                                         ret[--i] = array[i];
1164                 }
1165
1166                 return ret;
1167         },
1168
1169         inArray: function( elem, array ) {
1170                 for ( var i = 0, length = array.length; i < length; i++ )
1171                 // Use === because on IE, window == document
1172                         if ( array[ i ] === elem )
1173                                 return i;
1174
1175                 return -1;
1176         },
1177
1178         merge: function( first, second ) {
1179                 // We have to loop this way because IE & Opera overwrite the length
1180                 // expando of getElementsByTagName
1181                 var i = 0, elem, pos = first.length;
1182                 // Also, we need to make sure that the correct elements are being returned
1183                 // (IE returns comment nodes in a '*' query)
1184                 if ( jQuery.browser.msie ) {
1185                         while ( (elem = second[ i++ ]) )
1186                                 if ( elem.nodeType != 8 )
1187                                         first[ pos++ ] = elem;
1188
1189                 } else
1190                         while ( (elem = second[ i++ ]) )
1191                                 first[ pos++ ] = elem;
1192
1193                 return first;
1194         },
1195
1196         unique: function( array ) {
1197                 var ret = [], done = {};
1198
1199                 try {
1200
1201                         for ( var i = 0, length = array.length; i < length; i++ ) {
1202                                 var id = jQuery.data( array[ i ] );
1203
1204                                 if ( !done[ id ] ) {
1205                                         done[ id ] = true;
1206                                         ret.push( array[ i ] );
1207                                 }
1208                         }
1209
1210                 } catch( e ) {
1211                         ret = array;
1212                 }
1213
1214                 return ret;
1215         },
1216
1217         grep: function( elems, callback, inv ) {
1218                 var ret = [];
1219
1220                 // Go through the array, only saving the items
1221                 // that pass the validator function
1222                 for ( var i = 0, length = elems.length; i < length; i++ )
1223                         if ( !inv != !callback( elems[ i ], i ) )
1224                                 ret.push( elems[ i ] );
1225
1226                 return ret;
1227         },
1228
1229         map: function( elems, callback ) {
1230                 var ret = [];
1231
1232                 // Go through the array, translating each of the items to their
1233                 // new value (or values).
1234                 for ( var i = 0, length = elems.length; i < length; i++ ) {
1235                         var value = callback( elems[ i ], i );
1236
1237                         if ( value != null )
1238                                 ret[ ret.length ] = value;
1239                 }
1240
1241                 return ret.concat.apply( [], ret );
1242         }
1243 });
1244
1245 var userAgent = navigator.userAgent.toLowerCase();
1246
1247 // Figure out what browser is being used
1248 jQuery.browser = {
1249         version: (userAgent.match( /.+(?:rv|it|ra|ie)[\/: ]([\d.]+)/ ) || [0,'0'])[1],
1250         safari: /webkit/.test( userAgent ),
1251         opera: /opera/.test( userAgent ),
1252         msie: /msie/.test( userAgent ) && !/opera/.test( userAgent ),
1253         mozilla: /mozilla/.test( userAgent ) && !/(compatible|webkit)/.test( userAgent )
1254 };
1255
1256 var styleFloat = jQuery.browser.msie ?
1257         "styleFloat" :
1258         "cssFloat";
1259
1260 jQuery.extend({
1261         // Check to see if the W3C box model is being used
1262         boxModel: !jQuery.browser.msie || document.compatMode == "CSS1Compat",
1263
1264         props: {
1265                 "for": "htmlFor",
1266                 "class": "className",
1267                 "float": styleFloat,
1268                 cssFloat: styleFloat,
1269                 styleFloat: styleFloat,
1270                 readonly: "readOnly",
1271                 maxlength: "maxLength",
1272                 cellspacing: "cellSpacing",
1273                 rowspan: "rowSpan"
1274         }
1275 });
1276
1277 jQuery.each({
1278         parent: function(elem){return elem.parentNode;},
1279         parents: function(elem){return jQuery.dir(elem,"parentNode");},
1280         next: function(elem){return jQuery.nth(elem,2,"nextSibling");},
1281         prev: function(elem){return jQuery.nth(elem,2,"previousSibling");},
1282         nextAll: function(elem){return jQuery.dir(elem,"nextSibling");},
1283         prevAll: function(elem){return jQuery.dir(elem,"previousSibling");},
1284         siblings: function(elem){return jQuery.sibling(elem.parentNode.firstChild,elem);},
1285         children: function(elem){return jQuery.sibling(elem.firstChild);},
1286         contents: function(elem){return jQuery.nodeName(elem,"iframe")?elem.contentDocument||elem.contentWindow.document:jQuery.makeArray(elem.childNodes);}
1287 }, function(name, fn){
1288         jQuery.fn[ name ] = function( selector ) {
1289                 var ret = jQuery.map( this, fn );
1290
1291                 if ( selector && typeof selector == "string" )
1292                         ret = jQuery.multiFilter( selector, ret );
1293
1294                 return this.pushStack( jQuery.unique( ret ), name, selector );
1295         };
1296 });
1297
1298 jQuery.each({
1299         appendTo: "append",
1300         prependTo: "prepend",
1301         insertBefore: "before",
1302         insertAfter: "after",
1303         replaceAll: "replaceWith"
1304 }, function(name, original){
1305         jQuery.fn[ name ] = function() {
1306                 var args = arguments;
1307
1308                 return this.each(function(){
1309                         for ( var i = 0, length = args.length; i < length; i++ )
1310                                 jQuery( args[ i ] )[ original ]( this );
1311                 });
1312         };
1313 });
1314
1315 jQuery.each({
1316         removeAttr: function( name ) {
1317                 jQuery.attr( this, name, "" );
1318                 if (this.nodeType == 1)
1319                         this.removeAttribute( name );
1320         },
1321
1322         addClass: function( classNames ) {
1323                 jQuery.className.add( this, classNames );
1324         },
1325
1326         removeClass: function( classNames ) {
1327                 jQuery.className.remove( this, classNames );
1328         },
1329
1330         toggleClass: function( classNames ) {
1331                 jQuery.className[ jQuery.className.has( this, classNames ) ? "remove" : "add" ]( this, classNames );
1332         },
1333
1334         remove: function( selector ) {
1335                 if ( !selector || jQuery.filter( selector, [ this ] ).r.length ) {
1336                         // Prevent memory leaks
1337                         jQuery( "*", this ).add([this]).each(function(){
1338                                 jQuery.event.remove(this);
1339                                 jQuery.removeData(this);
1340                         });
1341                         if (this.parentNode)
1342                                 this.parentNode.removeChild( this );
1343                 }
1344         },
1345
1346         empty: function() {
1347                 // Remove element nodes and prevent memory leaks
1348                 jQuery( ">*", this ).remove();
1349
1350                 // Remove any remaining nodes
1351                 while ( this.firstChild )
1352                         this.removeChild( this.firstChild );
1353         }
1354 }, function(name, fn){
1355         jQuery.fn[ name ] = function(){
1356                 return this.each( fn, arguments );
1357         };
1358 });
1359
1360 jQuery.each([ "Height", "Width" ], function(i, name){
1361         var type = name.toLowerCase();
1362
1363         jQuery.fn[ type ] = function( size ) {
1364                 // Get window width or height
1365                 return this[0] == window ?
1366                         // Opera reports document.body.client[Width/Height] properly in both quirks and standards
1367                         jQuery.browser.opera && document.body.parentNode[ "client" + name ] ||
1368
1369                         // Safari reports inner[Width/Height] just fine (Mozilla and Opera include scroll bar widths)
1370                         jQuery.browser.safari && window[ "inner" + name ] ||
1371
1372                         // Everyone else use document.documentElement or document.body depending on Quirks vs Standards mode
1373                         document.compatMode == "CSS1Compat" && document.documentElement[ "client" + name ] || document.body[ "client" + name ] :
1374
1375                         // Get document width or height
1376                         this[0] == document ?
1377                                 // Either scroll[Width/Height] or offset[Width/Height], whichever is greater
1378                                 Math.max(
1379                                         Math.max(document.body["scroll" + name], document.documentElement["scroll" + name]),
1380                                         Math.max(document.body["offset" + name], document.documentElement["offset" + name])
1381                                 ) :
1382
1383                                 // Get or set width or height on the element
1384                                 size === undefined ?
1385                                         // Get width or height on the element
1386                                         (this.length ? jQuery.css( this[0], type ) : null) :
1387
1388                                         // Set the width or height on the element (default to pixels if value is unitless)
1389                                         this.css( type, typeof size === "string" ? size : size + "px" );
1390         };
1391 });
1392
1393 // Helper function used by the dimensions and offset modules
1394 function num(elem, prop) {
1395         return elem[0] && parseInt( jQuery.curCSS(elem[0], prop, true), 10 ) || 0;
1396 }