src/jquery/jquery.js

   1 /*
   2  * jQuery @VERSION - New Wave Javascript
   3  *
   4  * Copyright (c) 2007 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 if ( typeof jQuery != "undefined" )
  14         var _jQuery = jQuery;
  15
  16 var jQuery = window.jQuery = function(a,c) {
  17         // If the context is global, return a new object
  18         if ( window == this || !this.init )
  19                 return new jQuery(a,c);
  20
  21         return this.init(a,c);
  22 };
  23
  24 // Map over the $ in case of overwrite
  25 if ( typeof $ != "undefined" )
  26         var _$ = $;
  27
  28 // Map the jQuery namespace to the '$' one
  29 window.$ = jQuery;
  30
  31 var quickExpr = /^[^<]*(<(.|\s)+>)[^>]*$|^#(\w+)$/;
  32
  33 jQuery.fn = jQuery.prototype = {
  34         init: function(a,c) {
  35                 // Make sure that a selection was provided
  36                 a = a || document;
  37
  38                 // Handle HTML strings
  39                 if ( typeof a  == "string" ) {
  40                         var m = quickExpr.exec(a);
  41                         if ( m && (m[1] || !c) ) {
  42                                 // HANDLE: $(html) -> $(array)
  43                                 if ( m[1] )
  44                                         a = jQuery.clean( [ m[1] ], c );
  45
  46                                 // HANDLE: $("#id")
  47                                 else {
  48                                         var tmp = document.getElementById( m[3] );
  49                                         if ( tmp )
  50                                                 // Handle the case where IE and Opera return items
  51                                                 // by name instead of ID
  52                                                 if ( tmp.id != m[3] )
  53                                                         return jQuery().find( a );
  54                                                 else {
  55                                                         this[0] = tmp;
  56                                                         this.length = 1;
  57                                                         return this;
  58                                                 }
  59                                         else
  60                                                 a = [];
  61                                 }
  62
  63                         // HANDLE: $(expr)
  64                         } else
  65                                 return new jQuery( c ).find( a );
  66
  67                 // HANDLE: $(function)
  68                 // Shortcut for document ready
  69                 } else if ( jQuery.isFunction(a) )
  70                         return new jQuery(document)[ jQuery.fn.ready ? "ready" : "load" ]( a );
  71
  72                 return this.setArray(
  73                         // HANDLE: $(array)
  74                         a.constructor == Array && a ||
  75
  76                         // HANDLE: $(arraylike)
  77                         // Watch for when an array-like object is passed as the selector
  78                         (a.jquery || a.length && a != window && !a.nodeType && a[0] != undefined && a[0].nodeType) && jQuery.makeArray( a ) ||
  79
  80                         // HANDLE: $(*)
  81                         [ a ] );
  82         },
  83
  84         jquery: "@VERSION",
  85
  86         size: function() {
  87                 return this.length;
  88         },
  89
  90         length: 0,
  91
  92         get: function( num ) {
  93                 return num == undefined ?
  94
  95                         // Return a 'clean' array
  96                         jQuery.makeArray( this ) :
  97
  98                         // Return just the object
  99                         this[num];
 100         },
 101
 102         pushStack: function( a ) {
 103                 var ret = jQuery(a);
 104                 ret.prevObject = this;
 105                 return ret;
 106         },
 107
 108         setArray: function( a ) {
 109                 this.length = 0;
 110                 Array.prototype.push.apply( this, a );
 111                 return this;
 112         },
 113
 114         each: function( fn, args ) {
 115                 return jQuery.each( this, fn, args );
 116         },
 117
 118         index: function( obj ) {
 119                 var pos = -1;
 120                 this.each(function(i){
 121                         if ( this == obj ) pos = i;
 122                 });
 123                 return pos;
 124         },
 125
 126         attr: function( key, value, type ) {
 127                 var obj = key;
 128
 129                 // Look for the case where we're accessing a style value
 130                 if ( key.constructor == String )
 131                         if ( value == undefined )
 132                                 return this.length && jQuery[ type || "attr" ]( this[0], key ) || undefined;
 133                         else {
 134                                 obj = {};
 135                                 obj[ key ] = value;
 136                         }
 137
 138                 // Check to see if we're setting style values
 139                 return this.each(function(index){
 140                         // Set all the styles
 141                         for ( var prop in obj )
 142                                 jQuery.attr(
 143                                         type ? this.style : this,
 144                                         prop, jQuery.prop(this, obj[prop], type, index, prop)
 145                                 );
 146                 });
 147         },
 148
 149         css: function( key, value ) {
 150                 return this.attr( key, value, "curCSS" );
 151         },
 152
 153         text: function(e) {
 154                 if ( typeof e != "object" && e != null )
 155                         return this.empty().append( document.createTextNode( e ) );
 156
 157                 var t = "";
 158                 jQuery.each( e || this, function(){
 159                         jQuery.each( this.childNodes, function(){
 160                                 if ( this.nodeType != 8 )
 161                                         t += this.nodeType != 1 ?
 162                                                 this.nodeValue : jQuery.fn.text([ this ]);
 163                         });
 164                 });
 165                 return t;
 166         },
 167
 168         wrapAll: function(html) {
 169                 if ( this[0] )
 170                         // The elements to wrap the target around
 171                         jQuery(html, this[0].ownerDocument)
 172                                 .clone()
 173                                 .insertBefore(this[0])
 174                                 .map(function(){
 175                                         var elem = this;
 176                                         while ( elem.firstChild )
 177                                                 elem = elem.firstChild;
 178                                         return elem;
 179                                 })
 180                                 .append(this);
 181
 182                 return this;
 183         },
 184
 185         wrapInner: function(html) {
 186                 return this.each(function(){
 187                         jQuery(this).contents().wrapAll(html);
 188                 });
 189         },
 190
 191         wrap: function(html) {
 192                 return this.each(function(){
 193                         jQuery(this).wrapAll(html);
 194                 });
 195         },
 196
 197         append: function() {
 198                 return this.domManip(arguments, true, 1, function(a){
 199                         this.appendChild( a );
 200                 });
 201         },
 202
 203         prepend: function() {
 204                 return this.domManip(arguments, true, -1, function(a){
 205                         this.insertBefore( a, this.firstChild );
 206                 });
 207         },
 208
 209         before: function() {
 210                 return this.domManip(arguments, false, 1, function(a){
 211                         this.parentNode.insertBefore( a, this );
 212                 });
 213         },
 214
 215         after: function() {
 216                 return this.domManip(arguments, false, -1, function(a){
 217                         this.parentNode.insertBefore( a, this.nextSibling );
 218                 });
 219         },
 220
 221         end: function() {
 222                 return this.prevObject || jQuery([]);
 223         },
 224
 225         find: function(t) {
 226                 var data = jQuery.map(this, function(a){ return jQuery.find(t,a); });
 227                 return this.pushStack( /[^+>] [^+>]/.test( t ) || t.indexOf("..") > -1 ?
 228                         jQuery.unique( data ) : data );
 229         },
 230
 231         clone: function(deep) {
 232                 deep = deep != undefined ? deep : true;
 233                 var $this = this.add(this.find("*"));
 234                 if (jQuery.browser.msie) {
 235                         // Need to remove events on the element and its descendants
 236                         $this.each(function() {
 237                                 this._$events = {};
 238                                 for (var type in this.$events)
 239                                         this._$events[type] = jQuery.extend({},this.$events[type]);
 240                         }).unbind();
 241                 }
 242
 243                 // Do the clone
 244                 var r = this.pushStack( jQuery.map( this, function(a){
 245                         return a.cloneNode( deep );
 246                 }) );
 247
 248                 if (jQuery.browser.msie) {
 249                         $this.each(function() {
 250                                 // Add the events back to the original and its descendants
 251                                 var events = this._$events;
 252                                 for (var type in events)
 253                                         for (var handler in events[type])
 254                                                 jQuery.event.add(this, type, events[type][handler], events[type][handler].data);
 255                                 this._$events = null;
 256                         });
 257                 }
 258
 259                 // copy form values over
 260                 if (deep) {
 261                         var inputs = r.add(r.find('*')).filter('select,input[@type=checkbox]');
 262                         $this.filter('select,input[@type=checkbox]').each(function(i) {
 263                                 if (this.selectedIndex)
 264                                         inputs[i].selectedIndex = this.selectedIndex;
 265                                 if (this.checked)
 266                                         inputs[i].checked = true;
 267                         });
 268                 }
 269
 270                 // Return the cloned set
 271                 return r;
 272         },
 273
 274         filter: function(t) {
 275                 return this.pushStack(
 276                         jQuery.isFunction( t ) &&
 277                         jQuery.grep(this, function(el, index){
 278                                 return t.apply(el, [index]);
 279                         }) ||
 280
 281                         jQuery.multiFilter(t,this) );
 282         },
 283
 284         not: function(t) {
 285                 return this.pushStack(
 286                         t.constructor == String &&
 287                         jQuery.multiFilter(t, this, true) ||
 288
 289                         jQuery.grep(this, function(a) {
 290                                 return ( t.constructor == Array || t.jquery )
 291                                         ? jQuery.inArray( a, t ) < 0
 292                                         : a != t;
 293                         })
 294                 );
 295         },
 296
 297         add: function(t) {
 298                 return this.pushStack( jQuery.merge(
 299                         this.get(),
 300                         t.constructor == String ?
 301                                 jQuery(t).get() :
 302                                 t.length != undefined && (!t.nodeName || t.nodeName == "FORM") ?
 303                                         t : [t] )
 304                 );
 305         },
 306
 307         is: function(expr) {
 308                 return expr ? jQuery.multiFilter(expr,this).length > 0 : false;
 309         },
 310
 311         val: function( val ) {
 312                 return val == undefined ?
 313                         ( this.length ? this[0].value : null ) :
 314                         this.attr( "value", val );
 315         },
 316
 317         html: function( val ) {
 318                 return val == undefined ?
 319                         ( this.length ? this[0].innerHTML : null ) :
 320                         this.empty().append( val );
 321         },
 322
 323         replaceWith: function( val ) {
 324                 return this.after( val ).remove();
 325         },
 326
 327         slice: function() {
 328                 return this.pushStack( Array.prototype.slice.apply( this, arguments ) );
 329         },
 330
 331         map: function(fn){
 332                 return this.pushStack(jQuery.map( this, function(elem,i){
 333                         return fn.call( elem, i, elem );
 334                 }));
 335         },
 336
 337         domManip: function(args, table, dir, fn){
 338                 var clone = this.length > 1, a;
 339
 340                 return this.each(function(){
 341                         if ( !a ) {
 342                                 a = jQuery.clean(args, this.ownerDocument);
 343                                 if ( dir < 0 )
 344                                         a.reverse();
 345                         }
 346
 347                         var obj = this;
 348
 349                         if ( table && jQuery.nodeName(this, "table") && jQuery.nodeName(a[0], "tr") )
 350                                 obj = this.getElementsByTagName("tbody")[0] || this.appendChild(document.createElement("tbody"));
 351
 352                         jQuery.each( a, function(){
 353                                 if ( jQuery.nodeName(this, "script") ) {
 354                                         if ( this.src )
 355                                                 jQuery.ajax({ url: this.src, async: false, dataType: "script" });
 356                                         else
 357                                                 jQuery.globalEval( this.text || this.textContent || this.innerHTML || "" );
 358                                 } else
 359                                         fn.apply( obj, [ clone ? this.cloneNode(true) : this ] );
 360                         });
 361                 });
 362         }
 363 };
 364
 365 jQuery.extend = jQuery.fn.extend = function() {
 366         // copy reference to target object
 367         var target = arguments[0] || {}, a = 1, al = arguments.length, deep = false;
 368
 369         // Handle a deep copy situation
 370         if ( target.constructor == Boolean ) {
 371                 deep = target;
 372                 target = arguments[1] || {};
 373         }
 374
 375         // extend jQuery itself if only one argument is passed
 376         if ( al == 1 ) {
 377                 target = this;
 378                 a = 0;
 379         }
 380
 381         var prop;
 382
 383         for ( ; a < al; a++ )
 384                 // Only deal with non-null/undefined values
 385                 if ( (prop = arguments[a]) != null )
 386                         // Extend the base object
 387                         for ( var i in prop ) {
 388                                 // Prevent never-ending loop
 389                                 if ( target == prop[i] )
 390                                         continue;
 391
 392                                 // Recurse if we're merging object values
 393                                 if ( deep && typeof prop[i] == 'object' && target[i] )
 394                                         jQuery.extend( target[i], prop[i] );
 395
 396                                 // Don't bring in undefined values
 397                                 else if ( prop[i] != undefined )
 398                                         target[i] = prop[i];
 399                         }
 400
 401         // Return the modified object
 402         return target;
 403 };
 404
 405 jQuery.extend({
 406         noConflict: function(deep) {
 407                 window.$ = _$;
 408                 if ( deep )
 409                         window.jQuery = _jQuery;
 410                 return jQuery;
 411         },
 412
 413         // This may seem like some crazy code, but trust me when I say that this
 414         // is the only cross-browser way to do this. --John
 415         isFunction: function( fn ) {
 416                 return !!fn && typeof fn != "string" && !fn.nodeName &&
 417                         fn.constructor != Array && /function/i.test( fn + "" );
 418         },
 419
 420         // check if an element is in a XML document
 421         isXMLDoc: function(elem) {
 422                 return elem.documentElement && !elem.body ||
 423                         elem.tagName && elem.ownerDocument && !elem.ownerDocument.body;
 424         },
 425
 426         // Evalulates a script in a global context
 427         // Evaluates Async. in Safari 2 :-(
 428         globalEval: function( data ) {
 429                 data = jQuery.trim( data );
 430                 if ( data ) {
 431                         if ( window.execScript )
 432                                 window.execScript( data );
 433                         else if ( jQuery.browser.safari )
 434                                 // safari doesn't provide a synchronous global eval
 435                                 window.setTimeout( data, 0 );
 436                         else
 437                                 eval.call( window, data );
 438                 }
 439         },
 440
 441         nodeName: function( elem, name ) {
 442                 return elem.nodeName && elem.nodeName.toUpperCase() == name.toUpperCase();
 443         },
 444
 445         // args is for internal usage only
 446         each: function( obj, fn, args ) {
 447                 if ( args ) {
 448                         if ( obj.length == undefined )
 449                                 for ( var i in obj )
 450                                         fn.apply( obj[i], args );
 451                         else
 452                                 for ( var i = 0, ol = obj.length; i < ol; i++ )
 453                                         if ( fn.apply( obj[i], args ) === false ) break;
 454
 455                 // A special, fast, case for the most common use of each
 456                 } else {
 457                         if ( obj.length == undefined )
 458                                 for ( var i in obj )
 459                                         fn.call( obj[i], i, obj[i] );
 460                         else
 461                                 for ( var i = 0, ol = obj.length, val = obj[0];
 462                                         i < ol && fn.call(val,i,val) !== false; val = obj[++i] ){}
 463                 }
 464
 465                 return obj;
 466         },
 467
 468         prop: function(elem, value, type, index, prop){
 469                         // Handle executable functions
 470                         if ( jQuery.isFunction( value ) )
 471                                 value = value.call( elem, [index] );
 472
 473                         // exclude the following css properties to add px
 474                         var exclude = /z-?index|font-?weight|opacity|zoom|line-?height/i;
 475
 476                         // Handle passing in a number to a CSS property
 477                         return value && value.constructor == Number && type == "curCSS" && !exclude.test(prop) ?
 478                                 value + "px" :
 479                                 value;
 480         },
 481
 482         className: {
 483                 // internal only, use addClass("class")
 484                 add: function( elem, c ){
 485                         jQuery.each( (c || "").split(/\s+/), function(i, cur){
 486                                 if ( !jQuery.className.has( elem.className, cur ) )
 487                                         elem.className += ( elem.className ? " " : "" ) + cur;
 488                         });
 489                 },
 490
 491                 // internal only, use removeClass("class")
 492                 remove: function( elem, c ){
 493                         elem.className = c != undefined ?
 494                                 jQuery.grep( elem.className.split(/\s+/), function(cur){
 495                                         return !jQuery.className.has( c, cur );
 496                                 }).join(" ") : "";
 497                 },
 498
 499                 // internal only, use is(".class")
 500                 has: function( t, c ) {
 501                         return jQuery.inArray( c, (t.className || t).toString().split(/\s+/) ) > -1;
 502                 }
 503         },
 504
 505         swap: function(e,o,f) {
 506                 for ( var i in o ) {
 507                         e.style["old"+i] = e.style[i];
 508                         e.style[i] = o[i];
 509                 }
 510                 f.apply( e, [] );
 511                 for ( var i in o )
 512                         e.style[i] = e.style["old"+i];
 513         },
 514
 515         css: function(e,p) {
 516                 if ( p == "height" || p == "width" ) {
 517                         var old = {}, oHeight, oWidth, d = ["Top","Bottom","Right","Left"];
 518
 519                         jQuery.each( d, function(){
 520                                 old["padding" + this] = 0;
 521                                 old["border" + this + "Width"] = 0;
 522                         });
 523
 524                         jQuery.swap( e, old, function() {
 525                                 if ( jQuery(e).is(':visible') ) {
 526                                         oHeight = e.offsetHeight;
 527                                         oWidth = e.offsetWidth;
 528                                 } else {
 529                                         e = jQuery(e.cloneNode(true))
 530                                                 .find(":radio").removeAttr("checked").end()
 531                                                 .css({
 532                                                         visibility: "hidden", position: "absolute", display: "block", right: "0", left: "0"
 533                                                 }).appendTo(e.parentNode)[0];
 534
 535                                         var parPos = jQuery.css(e.parentNode,"position") || "static";
 536                                         if ( parPos == "static" )
 537                                                 e.parentNode.style.position = "relative";
 538
 539                                         oHeight = e.clientHeight;
 540                                         oWidth = e.clientWidth;
 541
 542                                         if ( parPos == "static" )
 543                                                 e.parentNode.style.position = "static";
 544
 545                                         e.parentNode.removeChild(e);
 546                                 }
 547                         });
 548
 549                         return p == "height" ? oHeight : oWidth;
 550                 }
 551
 552                 return jQuery.curCSS( e, p );
 553         },
 554
 555         curCSS: function(elem, prop, force) {
 556                 var ret, stack = [], swap = [];
 557
 558                 // A helper method for determining if an element's values are broken
 559                 function color(a){
 560                         if ( !jQuery.browser.safari )
 561                                 return false;
 562
 563                         var ret = document.defaultView.getComputedStyle(a,null);
 564                         return !ret || ret.getPropertyValue("color") == "";
 565                 }
 566
 567                 if (prop == "opacity" && jQuery.browser.msie) {
 568                         ret = jQuery.attr(elem.style, "opacity");
 569                         return ret == "" ? "1" : ret;
 570                 }
 571
 572                 if (prop.match(/float/i))
 573                         prop = styleFloat;
 574
 575                 if (!force && elem.style[prop])
 576                         ret = elem.style[prop];
 577
 578                 else if (document.defaultView && document.defaultView.getComputedStyle) {
 579
 580                         if (prop.match(/float/i))
 581                                 prop = "float";
 582
 583                         prop = prop.replace(/([A-Z])/g,"-$1").toLowerCase();
 584                         var cur = document.defaultView.getComputedStyle(elem, null);
 585
 586                         if ( cur && !color(elem) )
 587                                 ret = cur.getPropertyValue(prop);
 588
 589                         // If the element isn't reporting its values properly in Safari
 590                         // then some display: none elements are involved
 591                         else {
 592                                 // Locate all of the parent display: none elements
 593                                 for ( var a = elem; a && color(a); a = a.parentNode )
 594                                         stack.unshift(a);
 595
 596                                 // Go through and make them visible, but in reverse
 597                                 // (It would be better if we knew the exact display type that they had)
 598                                 for ( a = 0; a < stack.length; a++ )
 599                                         if ( color(stack[a]) ) {
 600                                                 swap[a] = stack[a].style.display;
 601                                                 stack[a].style.display = "block";
 602                                         }
 603
 604                                 // Since we flip the display style, we have to handle that
 605                                 // one special, otherwise get the value
 606                                 ret = prop == "display" && swap[stack.length-1] != null ?
 607                                         "none" :
 608                                         document.defaultView.getComputedStyle(elem,null).getPropertyValue(prop) || "";
 609
 610                                 // Finally, revert the display styles back
 611                                 for ( a = 0; a < swap.length; a++ )
 612                                         if ( swap[a] != null )
 613                                                 stack[a].style.display = swap[a];
 614                         }
 615
 616                         if ( prop == "opacity" && ret == "" )
 617                                 ret = "1";
 618
 619                 } else if (elem.currentStyle) {
 620                         var newProp = prop.replace(/\-(\w)/g,function(m,c){return c.toUpperCase();});
 621                         ret = elem.currentStyle[prop] || elem.currentStyle[newProp];
 622                 }
 623
 624                 return ret;
 625         },
 626
 627         clean: function(a, doc) {
 628                 var r = [];
 629                 doc = doc || document;
 630
 631                 jQuery.each( a, function(i,arg){
 632                         if ( !arg ) return;
 633
 634                         if ( arg.constructor == Number )
 635                                 arg = arg.toString();
 636
 637                         // Convert html string into DOM nodes
 638                         if ( typeof arg == "string" ) {
 639                                 // Trim whitespace, otherwise indexOf won't work as expected
 640                                 var s = jQuery.trim(arg).toLowerCase(), div = doc.createElement("div"), tb = [];
 641
 642                                 var wrap =
 643                                         // option or optgroup
 644                                         !s.indexOf("<opt") &&
 645                                         [1, "<select>", "</select>"] ||
 646
 647                                         !s.indexOf("<leg") &&
 648                                         [1, "<fieldset>", "</fieldset>"] ||
 649
 650                                         s.match(/^<(thead|tbody|tfoot|colg|cap)/) &&
 651                                         [1, "<table>", "</table>"] ||
 652
 653                                         !s.indexOf("<tr") &&
 654                                         [2, "<table><tbody>", "</tbody></table>"] ||
 655
 656                                         // <thead> matched above
 657                                         (!s.indexOf("<td") || !s.indexOf("<th")) &&
 658                                         [3, "<table><tbody><tr>", "</tr></tbody></table>"] ||
 659
 660                                         !s.indexOf("<col") &&
 661                                         [2, "<table><tbody></tbody><colgroup>", "</colgroup></table>"] ||
 662
 663                                         // IE can't serialize <link> and <script> tags normally
 664                                         jQuery.browser.msie &&
 665                                         [1, "div<div>", "</div>"] ||
 666
 667                                         [0,"",""];
 668
 669                                 // Go to html and back, then peel off extra wrappers
 670                                 div.innerHTML = wrap[1] + arg + wrap[2];
 671
 672                                 // Move to the right depth
 673                                 while ( wrap[0]-- )
 674                                         div = div.lastChild;
 675
 676                                 // Remove IE's autoinserted <tbody> from table fragments
 677                                 if ( jQuery.browser.msie ) {
 678
 679                                         // String was a <table>, *may* have spurious <tbody>
 680                                         if ( !s.indexOf("<table") && s.indexOf("<tbody") < 0 )
 681                                                 tb = div.firstChild && div.firstChild.childNodes;
 682
 683                                         // String was a bare <thead> or <tfoot>
 684                                         else if ( wrap[1] == "<table>" && s.indexOf("<tbody") < 0 )
 685                                                 tb = div.childNodes;
 686
 687                                         for ( var n = tb.length-1; n >= 0 ; --n )
 688                                                 if ( jQuery.nodeName(tb[n], "tbody") && !tb[n].childNodes.length )
 689                                                         tb[n].parentNode.removeChild(tb[n]);
 690
 691                                         // IE completely kills leading whitespace when innerHTML is used
 692                                         if ( /^\s/.test(arg) )
 693                                                 div.insertBefore( doc.createTextNode( arg.match(/^\s*/)[0] ), div.firstChild );
 694
 695                                 }
 696
 697                                 arg = jQuery.makeArray( div.childNodes );
 698                         }
 699
 700                         if ( 0 === arg.length && (!jQuery.nodeName(arg, "form") && !jQuery.nodeName(arg, "select")) )
 701                                 return;
 702
 703                         if ( arg[0] == undefined || jQuery.nodeName(arg, "form") || arg.options )
 704                                 r.push( arg );
 705                         else
 706                                 r = jQuery.merge( r, arg );
 707
 708                 });
 709
 710                 return r;
 711         },
 712
 713         attr: function(elem, name, value){
 714                 var fix = jQuery.isXMLDoc(elem) ? {} : jQuery.props;
 715
 716                 // Safari mis-reports the default selected property of a hidden option
 717                 // Accessing the parent's selectedIndex property fixes it
 718                 if ( name == "selected" && jQuery.browser.safari )
 719                         elem.parentNode.selectedIndex;
 720
 721                 // Certain attributes only work when accessed via the old DOM 0 way
 722                 if ( fix[name] ) {
 723                         if ( value != undefined ) elem[fix[name]] = value;
 724                         return elem[fix[name]];
 725                 } else if ( jQuery.browser.msie && name == "style" )
 726                         return jQuery.attr( elem.style, "cssText", value );
 727
 728                 else if ( value == undefined && jQuery.browser.msie && jQuery.nodeName(elem, "form") && (name == "action" || name == "method") )
 729                         return elem.getAttributeNode(name).nodeValue;
 730
 731                 // IE elem.getAttribute passes even for style
 732                 else if ( elem.tagName ) {
 733
 734                         if ( value != undefined ) elem.setAttribute( name, value );
 735                         if ( jQuery.browser.msie && /href|src/.test(name) && !jQuery.isXMLDoc(elem) )
 736                                 return elem.getAttribute( name, 2 );
 737                         return elem.getAttribute( name );
 738
 739                 // elem is actually elem.style ... set the style
 740                 } else {
 741                         // IE actually uses filters for opacity
 742                         if ( name == "opacity" && jQuery.browser.msie ) {
 743                                 if ( value != undefined ) {
 744                                         // IE has trouble with opacity if it does not have layout
 745                                         // Force it by setting the zoom level
 746                                         elem.zoom = 1;
 747
 748                                         // Set the alpha filter to set the opacity
 749                                         elem.filter = (elem.filter || "").replace(/alpha\([^)]*\)/,"") +
 750                                                 (parseFloat(value).toString() == "NaN" ? "" : "alpha(opacity=" + value * 100 + ")");
 751                                 }
 752
 753                                 return elem.filter ?
 754                                         (parseFloat( elem.filter.match(/opacity=([^)]*)/)[1] ) / 100).toString() : "";
 755                         }
 756                         name = name.replace(/-([a-z])/ig,function(z,b){return b.toUpperCase();});
 757                         if ( value != undefined ) elem[name] = value;
 758                         return elem[name];
 759                 }
 760         },
 761
 762         trim: function(t){
 763                 return (t||"").replace(/^\s+|\s+$/g, "");
 764         },
 765
 766         makeArray: function( a ) {
 767                 var r = [];
 768
 769                 // Need to use typeof to fight Safari childNodes crashes
 770                 if ( typeof a != "array" )
 771                         for ( var i = 0, al = a.length; i < al; i++ )
 772                                 r.push( a[i] );
 773                 else
 774                         r = a.slice( 0 );
 775
 776                 return r;
 777         },
 778
 779         inArray: function( b, a ) {
 780                 for ( var i = 0, al = a.length; i < al; i++ )
 781                         if ( a[i] == b )
 782                                 return i;
 783                 return -1;
 784         },
 785
 786         merge: function(first, second) {
 787                 // We have to loop this way because IE & Opera overwrite the length
 788                 // expando of getElementsByTagName
 789
 790                 // Also, we need to make sure that the correct elements are being returned
 791                 // (IE returns comment nodes in a '*' query)
 792                 if ( jQuery.browser.msie ) {
 793                         for ( var i = 0; second[i]; i++ )
 794                                 if ( second[i].nodeType != 8 )
 795                                         first.push(second[i]);
 796                 } else
 797                         for ( var i = 0; second[i]; i++ )
 798                                 first.push(second[i]);
 799
 800                 return first;
 801         },
 802
 803         unique: function(first) {
 804                 var r = [], num = jQuery.mergeNum++;
 805
 806                 try {
 807                         for ( var i = 0, fl = first.length; i < fl; i++ )
 808                                 if ( num != first[i].mergeNum ) {
 809                                         first[i].mergeNum = num;
 810                                         r.push(first[i]);
 811                                 }
 812                 } catch(e) {
 813                         r = first;
 814                 }
 815
 816                 return r;
 817         },
 818
 819         mergeNum: 0,
 820
 821         grep: function(elems, fn, inv) {
 822                 // If a string is passed in for the function, make a function
 823                 // for it (a handy shortcut)
 824                 if ( typeof fn == "string" )
 825                         fn = eval("false||function(a,i){return " + fn + "}");
 826
 827                 var result = [];
 828
 829                 // Go through the array, only saving the items
 830                 // that pass the validator function
 831                 for ( var i = 0, el = elems.length; i < el; i++ )
 832                         if ( !inv && fn(elems[i],i) || inv && !fn(elems[i],i) )
 833                                 result.push( elems[i] );
 834
 835                 return result;
 836         },
 837
 838         map: function(elems, fn) {
 839                 // If a string is passed in for the function, make a function
 840                 // for it (a handy shortcut)
 841                 if ( typeof fn == "string" )
 842                         fn = eval("false||function(a){return " + fn + "}");
 843
 844                 var result = [];
 845
 846                 // Go through the array, translating each of the items to their
 847                 // new value (or values).
 848                 for ( var i = 0, el = elems.length; i < el; i++ ) {
 849                         var val = fn(elems[i],i);
 850
 851                         if ( val !== null && val != undefined ) {
 852                                 if ( val.constructor != Array ) val = [val];
 853                                 result = result.concat( val );
 854                         }
 855                 }
 856
 857                 return result;
 858         }
 859 });
 860
 861 var userAgent = navigator.userAgent.toLowerCase();
 862
 863 // Figure out what browser is being used
 864 jQuery.browser = {
 865         version: (userAgent.match(/.+(?:rv|it|ra|ie)[\/: ]([\d.]+)/) || [])[1],
 866         safari: /webkit/.test(userAgent),
 867         opera: /opera/.test(userAgent),
 868         msie: /msie/.test(userAgent) && !/opera/.test(userAgent),
 869         mozilla: /mozilla/.test(userAgent) && !/(compatible|webkit)/.test(userAgent)
 870 };
 871
 872 var styleFloat = jQuery.browser.msie ? "styleFloat" : "cssFloat";
 873
 874 jQuery.extend({
 875         // Check to see if the W3C box model is being used
 876         boxModel: !jQuery.browser.msie || document.compatMode == "CSS1Compat",
 877
 878         styleFloat: jQuery.browser.msie ? "styleFloat" : "cssFloat",
 879
 880         props: {
 881                 "for": "htmlFor",
 882                 "class": "className",
 883                 "float": styleFloat,
 884                 cssFloat: styleFloat,
 885                 styleFloat: styleFloat,
 886                 innerHTML: "innerHTML",
 887                 className: "className",
 888                 value: "value",
 889                 disabled: "disabled",
 890                 checked: "checked",
 891                 readonly: "readOnly",
 892                 selected: "selected",
 893                 maxlength: "maxLength"
 894         }
 895 });
 896
 897 jQuery.each({
 898         parent: "a.parentNode",
 899         parents: "jQuery.parents(a)",
 900         next: "jQuery.nth(a,2,'nextSibling')",
 901         prev: "jQuery.nth(a,2,'previousSibling')",
 902         siblings: "jQuery.sibling(a.parentNode.firstChild,a)",
 903         children: "jQuery.sibling(a.firstChild)",
 904         contents: "jQuery.nodeName(a,'iframe')?a.contentDocument||a.contentWindow.document:jQuery.makeArray(a.childNodes)"
 905 }, function(i,n){
 906         jQuery.fn[ i ] = function(a) {
 907                 var ret = jQuery.map(this,n);
 908                 if ( a && typeof a == "string" )
 909                         ret = jQuery.multiFilter(a,ret);
 910                 return this.pushStack( jQuery.unique(ret) );
 911         };
 912 });
 913
 914 jQuery.each({
 915         appendTo: "append",
 916         prependTo: "prepend",
 917         insertBefore: "before",
 918         insertAfter: "after",
 919         replaceAll: "replaceWith"
 920 }, function(i,n){
 921         jQuery.fn[ i ] = function(){
 922                 var a = arguments;
 923                 return this.each(function(){
 924                         for ( var j = 0, al = a.length; j < al; j++ )
 925                                 jQuery(a[j])[n]( this );
 926                 });
 927         };
 928 });
 929
 930 jQuery.each( {
 931         removeAttr: function( key ) {
 932                 jQuery.attr( this, key, "" );
 933                 this.removeAttribute( key );
 934         },
 935         addClass: function(c){
 936                 jQuery.className.add(this,c);
 937         },
 938         removeClass: function(c){
 939                 jQuery.className.remove(this,c);
 940         },
 941         toggleClass: function( c ){
 942                 jQuery.className[ jQuery.className.has(this,c) ? "remove" : "add" ](this, c);
 943         },
 944         remove: function(a){
 945                 if ( !a || jQuery.filter( a, [this] ).r.length )
 946                         this.parentNode.removeChild( this );
 947         },
 948         empty: function() {
 949                 while ( this.firstChild )
 950                         this.removeChild( this.firstChild );
 951         }
 952 }, function(i,n){
 953         jQuery.fn[ i ] = function() {
 954                 return this.each( n, arguments );
 955         };
 956 });
 957
 958 // DEPRECATED
 959 jQuery.each( [ "eq", "lt", "gt", "contains" ], function(i,n){
 960         jQuery.fn[ n ] = function(num,fn) {
 961                 return this.filter( ":" + n + "(" + num + ")", fn );
 962         };
 963 });
 964
 965 jQuery.each( [ "height", "width" ], function(i,n){
 966         jQuery.fn[ n ] = function(h) {
 967                 return h == undefined ?
 968                         ( this.length ? jQuery.css( this[0], n ) : null ) :
 969                         this.css( n, h.constructor == String ? h : h + "px" );
 970         };
 971 });