src/core.js

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