立即执行函数(IIFE)的理解与运用
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作为JavaScript的常用语法，立即执行函数IIFE(Immediately-Invoked Function Expression)是值得我们认真去学习探究的。
一、创建函数的两种方式
我们先从基础讲起，要创建一个JS函数，有两种方式。
（一）函数定义（Function Declaration）
function Identifier ( Parameters ){ FunctionBody }
函数定义中，参数（Parameters）标识符（Identifier ）是必不可少的。如果遗漏，会报提示如下错误：Expected identifier
（二）函数表达式（Function Expression）
function Identifier(Parameters){ FunctionBody }
函数表达式中，参数和标识符都是可选的。
那么我们是不是可以通过有无标识符来判断，创建函数的是一个函数定义，还是一个函数表达式呢？很遗憾，不行！
我们刚刚说过，函数表达式中标识符是可选的。那如果函数表达式有标识符，又该如何判断？
其实，"function Identifier(Parameters){ FunctionBody }"并不是一个完整的函数表达式，完整的函数的表达式，需要一个赋值操作。
比如： var name=function Identifier(Parameters){ FunctionBody }
这里的Identifier常常被省略，至于为什么，由于该主题内容涉及面较广，在此文中不作讨论。
好了。两种创建函数的方式实例如下：
//function expressionvar myExpression = function () { return window.location }//function declarationfunction myDeclaration() { return window.location.hostname }
二、立即执行函数
顾名思义，立即执行函数可以让你的函数在创建后立即执行。
（一）基本结构
这样的函数有多常用呢，我们可以看看下面的代码：
(function( window, undefined ) {//……})(window);
这段代码，大家一定不会陌生。是的，它就是我们"Write less, do more"的jQuery。
jQuery整个文件就是一个立即执行函数。
(function(){})(); 是立即执行函数常用的表现形式之一。
另一种也很常用：
(function(){}());
以上两种是比较常用的写法，但立即执行函数的写法因人而异。记住以下两点就可以了。
如果是函数表达式，可直接在其后加"()"立即执行。
如果是函数声明，可以通过"()"、"+"、"-"、"void"、"new"等运算符将其转换为函数表达式，然后再加"()"立即执行。
比如，下面的写法也是没有问题的。
void function(){}(alert("ok"));
在执行前，可以在最后调用的"()"传入我们需要的参数，比如jQuery就把window对象作为实参传入了立即函数内部。
（二）使用时机
什么时候需要用到立即执行函数呢？
1.当我们需要写一个js文件，并且复用率很高的时候，建议使用。
2.如果声明的函数只需要调用一次，建议使用。
3.独立模块，这个和第一点差不多。单独提出来，是想强调一下立即执行函数的好处，开发时，它能做到各模块的低耦合，减少对全局作用域的污染。
（三）实例及好处
无实例，无真相。找什么实例好呢？还是我们的jQuery吧。
1 /*! 2 * jQuery JavaScript Library v1.4.4 3 * http://jquery.com/ 4 * 5 * Copyright 2010, John Resig 6 * Dual licensed under the MIT or GPL Version 2 licenses. 7 * http://jquery.org/license 8 * 9 * Includes Sizzle.js 10 * http://sizzlejs.com/ 11 * Copyright 2010, The Dojo Foundation 12 * Released under the MIT, BSD, and GPL Licenses. 13 * 14 * Date: Thu Nov 11 19:04:53 2010 -0500 15 */ 16 (function( window, undefined ) { 17 18 // Use the correct document accordingly with window argument (sandbox) 19 var document = window.document; 20 var jQuery = (function() { 21 22 // Define a local copy of jQuery 23 var jQuery = function( selector, context ) { 24 // The jQuery object is actually just the init constructor 'enhanced' 25 return new jQuery.fn.init( selector, context ); 26 }, 27 28 // Map over jQuery in case of overwrite 29 _jQuery = window.jQuery, 30 31 // Map over the $ in case of overwrite 32 _$ = window.$, 33 34 // A central reference to the root jQuery(document) 35 rootjQuery, 36 37 // A simple way to check for HTML strings or ID strings 38 // (both of which we optimize for) 39 quickExpr = /^(?:[^<]*(<[/w/W]+>)[^>]*$|#([/w/-]+)$)/, 40 41 // Is it a simple selector 42 isSimple = /^.[^:#/[/.,]*$/, 43 44 // Check if a string has a non-whitespace character in it 45 rnotwhite = //S/, 46 rwhite = //s/, 47 48 // Used for trimming whitespace 49 trimLeft = /^/s+/, 50 trimRight = //s+$/, 51 52 // Check for non-word characters 53 rnonword = //W/, 54 55 // Check for digits 56 rdigit = //d/, 57 58 // Match a standalone tag 59 rsingleTag = /^<(/w+)/s*//?>(?:<///1>)?$/, 60 61 // JSON RegExp 62 rvalidchars = /^[/],:{}/s]*$/, 63 rvalidescape = ///(?:["////bfnrt]|u[0-9a-fA-F]{4})/g, 64 rvalidtokens = /"[^"///n/r]*"|true|false|null|-?/d+(?:/./d*)?(?:[eE][+/-]?/d+)?/g, 65 rvalidbraces = /(?:^|:|,)(?:/s*/[)+/g, 66 67 // Useragent RegExp 68 rwebkit = /(webkit)[ //]([/w.]+)/, 69 ropera = /(opera)(?:.*version)?[ //]([/w.]+)/, 70 rmsie = /(msie) ([/w.]+)/, 71 rmozilla = /(mozilla)(?:.*? rv:([/w.]+))?/, 72 73 // Keep a UserAgent string for use with jQuery.browser 74 userAgent = navigator.userAgent, 75 76 // For matching the engine and version of the browser 77 browserMatch, 78 79 // Has the ready events already been bound? 80 readyBound = false, 81 82 // The functions to execute on DOM ready 83 readyList = [], 84 85 // The ready event handler 86 DOMContentLoaded, 87 88 // Save a reference to some core methods 89 toString = Object.prototype.toString, 90 hasOwn = Object.prototype.hasOwnProperty, 91 push = Array.prototype.push, 92 slice = Array.prototype.slice, 93 trim = String.prototype.trim, 94 indexOf = Array.prototype.indexOf, 95 96 // [[Class]] -> type pairs 97 class2type = {}; 98 99 jQuery.fn = jQuery.prototype = { 100 init: function( selector, context ) { 101 var match, elem, ret, doc; 102 103 // Handle $(""), $(null), or $(undefined) 104 if ( !selector ) { 105 return this; 106 } 107 108 // Handle $(DOMElement) 109 if ( selector.nodeType ) { 110 this.context = this[0] = selector; 111 this.length = 1; 112 return this; 113 } 114 115 // The body element only exists once, optimize finding it 116 if ( selector === "body" && !context && document.body ) { 117 this.context = document; 118 this[0] = document.body; 119 this.selector = "body"; 120 this.length = 1; 121 return this; 122 } 123 124 // Handle HTML strings 125 if ( typeof selector === "string" ) { 126 // Are we dealing with HTML string or an ID? 127 match = quickExpr.exec( selector ); 128 129 // Verify a match, and that no context was specified for #id 130 if ( match && (match[1] || !context) ) { 131 132 // HANDLE: $(html) -> $(array) 133 if ( match[1] ) { 134 doc = (context ? context.ownerDocument || context : document); 135 136 // If a single string is passed in and it's a single tag 137 // just do a createElement and skip the rest 138 ret = rsingleTag.exec( selector ); 139 140 if ( ret ) { 141 if ( jQuery.isPlainObject( context ) ) { 142 selector = [ document.createElement( ret[1] ) ]; 143 jQuery.fn.attr.call( selector, context, true ); 144 145 } else { 146 selector = [ doc.createElement( ret[1] ) ]; 147 } 148 149 } else { 150 ret = jQuery.buildFragment( [ match[1] ], [ doc ] ); 151 selector = (ret.cacheable ? ret.fragment.cloneNode(true) : ret.fragment).childNodes; 152 } 153 154 return jQuery.merge( this, selector ); 155 156 // HANDLE: $("#id") 157 } else { 158 elem = document.getElementById( match[2] ); 159 160 // Check parentNode to catch when Blackberry 4.6 returns 161 // nodes that are no longer in the document #6963 162 if ( elem && elem.parentNode ) { 163 // Handle the case where IE and Opera return items 164 // by name instead of ID 165 if ( elem.id !== match[2] ) { 166 return rootjQuery.find( selector ); 167 } 168 169 // Otherwise, we inject the element directly into the jQuery object 170 this.length = 1; 171 this[0] = elem; 172 } 173 174 this.context = document; 175 this.selector = selector; 176 return this; 177 } 178 179 // HANDLE: $("TAG") 180 } else if ( !context && !rnonword.test( selector ) ) { 181 this.selector = selector; 182 this.context = document; 183 selector = document.getElementsByTagName( selector ); 184 return jQuery.merge( this, selector ); 185 186 // HANDLE: $(expr, $(...)) 187 } else if ( !context || context.jquery ) { 188 return (context || rootjQuery).find( selector ); 189 190 // HANDLE: $(expr, context) 191 // (which is just equivalent to: $(context).find(expr) 192 } else { 193 return jQuery( context ).find( selector ); 194 } 195 196 // HANDLE: $(function) 197 // Shortcut for document ready 198 } else if ( jQuery.isFunction( selector ) ) { 199 return rootjQuery.ready( selector ); 200 } 201 202 if (selector.selector !== undefined) { 203 this.selector = selector.selector; 204 this.context = selector.context; 205 } 206 207 return jQuery.makeArray( selector, this ); 208 }, 209 210 // Start with an empty selector 211 selector: "", 212 213 // The current version of jQuery being used 214 jquery: "1.4.4", 215 216 // The default length of a jQuery object is 0 217 length: 0, 218 219 // The number of elements contained in the matched element set 220 size: function() { 221 return this.length; 222 }, 223 224 toArray: function() { 225 return slice.call( this, 0 ); 226 }, 227 228 // Get the Nth element in the matched element set OR 229 // Get the whole matched element set as a clean array 230 get: function( num ) { 231 return num == null ? 232 233 // Return a 'clean' array 234 this.toArray() : 235 236 // Return just the object 237 ( num < 0 ? this.slice(num)[ 0 ] : this[ num ] ); 238 }, 239 240 // Take an array of elements and push it onto the stack 241 // (returning the new matched element set) 242 pushStack: function( elems, name, selector ) { 243 // Build a new jQuery matched element set 244 var ret = jQuery(); 245 246 if ( jQuery.isArray( elems ) ) { 247 push.apply( ret, elems ); 248 249 } else { 250 jQuery.merge( ret, elems ); 251 } 252 253 // Add the old object onto the stack (as a reference) 254 ret.prevObject = this; 255 256 ret.context = this.context; 257 258 if ( name === "find" ) { 259 ret.selector = this.selector + (this.selector ? " " : "") + selector; 260 } else if ( name ) { 261 ret.selector = this.selector + "." + name + "(" + selector + ")"; 262 } 263 264 // Return the newly-formed element set 265 return ret; 266 }, 267 268 // Execute a callback for every element in the matched set. 269 // (You can seed the arguments with an array of args, but this is 270 // only used internally.) 271 each: function( callback, args ) { 272 return jQuery.each( this, callback, args ); 273 }, 274 275 ready: function( fn ) { 276 // Attach the listeners 277 jQuery.bindReady(); 278 279 // If the DOM is already ready 280 if ( jQuery.isReady ) { 281 // Execute the function immediately 282 fn.call( document, jQuery ); 283 284 // Otherwise, remember the function for later 285 } else if ( readyList ) { 286 // Add the function to the wait list 287 readyList.push( fn ); 288 } 289 290 return this; 291 }, 292 293 eq: function( i ) { 294 return i === -1 ? 295 this.slice( i ) : 296 this.slice( i, +i + 1 ); 297 }, 298 299 first: function() { 300 return this.eq( 0 ); 301 }, 302 303 last: function() { 304 return this.eq( -1 ); 305 }, 306 307 slice: function() { 308 return this.pushStack( slice.apply( this, arguments ), 309 "slice", slice.call(arguments).join(",") ); 310 }, 311 312 map: function( callback ) { 313 return this.pushStack( jQuery.map(this, function( elem, i ) { 314 return callback.call( elem, i, elem ); 315 })); 316 }, 317 318 end: function() { 319 return this.prevObject || jQuery(null); 320 }, 321 322 // For internal use only. 323 // Behaves like an Array's method, not like a jQuery method. 324 push: push, 325 sort: [].sort, 326 splice: [].splice 327 }; 328 329 // Give the init function the jQuery prototype for later instantiation 330 jQuery.fn.init.prototype = jQuery.fn; 331 332 jQuery.extend = jQuery.fn.extend = function() { 333 var options, name, src, copy, copyIsArray, clone, 334 target = arguments[0] || {}, 335 i = 1, 336 length = arguments.length, 337 deep = false; 338 339 // Handle a deep copy situation 340 if ( typeof target === "boolean" ) { 341 deep = target; 342 target = arguments[1] || {}; 343 // skip the boolean and the target 344 i = 2; 345 } 346 347 // Handle case when target is a string or something (possible in deep copy) 348 if ( typeof target !== "object" && !jQuery.isFunction(target) ) { 349 target = {}; 350 } 351 352 // extend jQuery itself if only one argument is passed 353 if ( length === i ) { 354 target = this; 355 --i; 356 } 357 358 for ( ; i < length; i++ ) { 359 // Only deal with non-null/undefined values 360 if ( (options = arguments[ i ]) != null ) { 361 // Extend the base object 362 for ( name in options ) { 363 src = target[ name ]; 364 copy = options[ name ]; 365 366 // Prevent never-ending loop 367 if ( target === copy ) { 368 continue; 369 } 370 371 // Recurse if we're merging plain objects or arrays 372 if ( deep && copy && ( jQuery.isPlainObject(copy) || (copyIsArray = jQuery.isArray(copy)) ) ) { 373 if ( copyIsArray ) { 374 copyIsArray = false; 375 clone = src && jQuery.isArray(src) ? src : []; 376 377 } else { 378 clone = src && jQuery.isPlainObject(src) ? src : {}; 379 } 380 381 // Never move original objects, clone them 382 target[ name ] = jQuery.extend( deep, clone, copy ); 383 384 // Don't bring in undefined values 385 } else if ( copy !== undefined ) { 386 target[ name ] = copy; 387 } 388 } 389 } 390 } 391 392 // Return the modified object 393 return target; 394 }; 395 396 jQuery.extend({ 397 noConflict: function( deep ) { 398 window.$ = _$; 399 400 if ( deep ) { 401 window.jQuery = _jQuery; 402 } 403 404 return jQuery; 405 }, 406 407 // Is the DOM ready to be used? Set to true once it occurs. 408 isReady: false, 409 410 // A counter to track how many items to wait for before 411 // the ready event fires. See #6781 412 readyWait: 1, 413 414 // Handle when the DOM is ready 415 ready: function( wait ) { 416 // A third-party is pushing the ready event forwards 417 if ( wait === true ) { 418 jQuery.readyWait--; 419 } 420 421 // Make sure that the DOM is not already loaded 422 if ( !jQuery.readyWait || (wait !== true && !jQuery.isReady) ) { 423 // Make sure body exists, at least, in case IE gets a little overzealous (ticket #5443). 424 if ( !document.body ) { 425 return setTimeout( jQuery.ready, 1 ); 426 } 427 428 // Remember that the DOM is ready 429 jQuery.isReady = true; 430 431 // If a normal DOM Ready event fired, decrement, and wait if need be 432 if ( wait !== true && --jQuery.readyWait > 0 ) { 433 return; 434 } 435 436 // If there are functions bound, to execute 437 if ( readyList ) { 438 // Execute all of them 439 var fn, 440 i = 0, 441 ready = readyList; 442 443 // Reset the list of functions 444 readyList = null; 445 446 while ( (fn = ready[ i++ ]) ) { 447 fn.call( document, jQuery ); 448 } 449 450 // Trigger any bound ready events 451 if ( jQuery.fn.trigger ) { 452 jQuery( document ).trigger( "ready" ).unbind( "ready" ); 453 } 454 } 455 } 456 }, 457 458 bindReady: function() { 459 if ( readyBound ) { 460 return; 461 } 462 463 readyBound = true; 464 465 // Catch cases where $(document).ready() is called after the 466 // browser event has already occurred. 467 if ( document.readyState === "complete" ) { 468 // Handle it asynchronously to allow scripts the opportunity to delay ready 469 return setTimeout( jQuery.ready, 1 ); 470 } 471 472 // Mozilla, Opera and webkit nightlies currently support this event 473 if ( document.addEventListener ) { 474 // Use the handy event callback 475 document.addEventListener( "DOMContentLoaded", DOMContentLoaded, false ); 476 477 // A fallback to window.onload, that will always work 478 window.addEventListener( "load", jQuery.ready, false ); 479 480 // If IE event model is used 481 } else if ( document.attachEvent ) { 482 // ensure firing before onload, 483 // maybe late but safe also for iframes 484 document.attachEvent("onreadystatechange", DOMContentLoaded); 485 486 // A fallback to window.onload, that will always work 487 window.attachEvent( "onload", jQuery.ready ); 488 489 // If IE and not a frame 490 // continually check to see if the document is ready 491 var toplevel = false; 492 493 try { 494 toplevel = window.frameElement == null; 495 } catch(e) {} 496 497 if ( document.documentElement.doScroll && toplevel ) { 498 doScrollCheck(); 499 } 500 } 501 }, 502 503 // See test/unit/core.js for details concerning isFunction. 504 // Since version 1.3, DOM methods and functions like alert 505 // aren't supported. They return false on IE (#2968). 506 isFunction: function( obj ) { 507 return jQuery.type(obj) === "function"; 508 }, 509 510 isArray: Array.isArray || function( obj ) { 511 return jQuery.type(obj) === "array"; 512 }, 513 514 // A crude way of determining if an object is a window 515 isWindow: function( obj ) { 516 return obj && typeof obj === "object" && "setInterval" in obj; 517 }, 518 519 isNaN: function( obj ) { 520 return obj == null || !rdigit.test( obj ) || isNaN( obj ); 521 }, 522 523 type: function( obj ) { 524 return obj == null ? 525 String( obj ) : 526 class2type[ toString.call(obj) ] || "object"; 527 }, 528 529 isPlainObject: function( obj ) { 530 // Must be an Object. 531 // Because of IE, we also have to check the presence of the constructor property. 532 // Make sure that DOM nodes and window objects don't pass through, as well 533 if ( !obj || jQuery.type(obj) !== "object" || obj.nodeType || jQuery.isWindow( obj ) ) { 534 return false; 535 } 536 537 // Not own constructor property must be Object 538 if ( obj.constructor && 539 !hasOwn.call(obj, "constructor") && 540 !hasOwn.call(obj.constructor.prototype, "isPrototypeOf") ) { 541 return false; 542 } 543 544 // Own properties are enumerated firstly, so to speed up, 545 // if last one is own, then all properties are own. 546 547 var key; 548 for ( key in obj ) {} 549 550 return key === undefined || hasOwn.call( obj, key ); 551 }, 552 553 isEmptyObject: function( obj ) { 554 for ( var name in obj ) { 555 return false; 556 } 557 return true; 558 }, 559 560 error: function( msg ) { 561 throw msg; 562 }, 563 564 parseJSON: function( data ) { 565 if ( typeof data !== "string" || !data ) { 566 return null; 567 } 568 569 // Make sure leading/trailing whitespace is removed (IE can't handle it) 570 data = jQuery.trim( data ); 571 572 // Make sure the incoming data is actual JSON 573 // Logic borrowed from http://json.org/json2.js 574 if ( rvalidchars.test(data.replace(rvalidescape, "@") 575 .replace(rvalidtokens, "]") 576 .replace(rvalidbraces, "")) ) { 577 578 // Try to use the native JSON parser first 579 return window.JSON && window.JSON.parse ? 580 window.JSON.parse( data ) : 581 (new Function("return " + data))(); 582 583 } else { 584 jQuery.error( "Invalid JSON: " + data ); 585 } 586 }, 587 588 noop: function() {}, 589 590 // Evalulates a script in a global context 591 globalEval: function( data ) { 592 if ( data && rnotwhite.test(data) ) { 593 // Inspired by code by Andrea Giammarchi 594 // http://webreflection.blogspot.com/2007/08/global-scope-evaluation-and-dom.html 595 var head = document.getElementsByTagName("head")[0] || document.documentElement, 596 script = document.createElement("script"); 597 598 script.type = "text/javascript"; 599 600 if ( jQuery.support.scriptEval ) { 601 script.appendChild( document.createTextNode( data ) ); 602 } else { 603 script.text = data; 604 } 605 606 // Use insertBefore instead of appendChild to circumvent an IE6 bug. 607 // This arises when a base node is used (#2709). 608 head.insertBefore( script, head.firstChild ); 609 head.removeChild( script ); 610 } 611 }, 612 613 nodeName: function( elem, name ) { 614 return elem.nodeName && elem.nodeName.toUpperCase() === name.toUpperCase(); 615 }, 616 617 // args is for internal usage only 618 each: function( object, callback, args ) { 619 var name, i = 0, 620 length = object.length, 621 isObj = length === undefined || jQuery.isFunction(object); 622 623 if ( args ) { 624 if ( isObj ) { 625 for ( name in object ) { 626 if ( callback.apply( object[ name ], args ) === false ) { 627 break; 628 } 629 } 630 } else { 631 for ( ; i < length; ) { 632 if ( callback.apply( object[ i++ ], args ) === false ) { 633 break; 634 } 635 } 636 } 637 638 // A special, fast, case for the most common use of each 639 } else { 640 if ( isObj ) { 641 for ( name in object ) { 642 if ( callback.call( object[ name ], name, object[ name ] ) === false ) { 643 break; 644 } 645 } 646 } else { 647 for ( var value = object[0]; 648 i < length && callback.call( value, i, value ) !== false; value = object[++i] ) {} 649 } 650 } 651 652 return object; 653 }, 654 655 // Use native String.trim function wherever possible 656 trim: trim ? 657 function( text ) { 658 return text == null ? 659 "" : 660 trim.call( text ); 661 } : 662 663 // Otherwise use our own trimming functionality 664 function( text ) { 665 return text == null ? 666 "" : 667 text.toString().replace( trimLeft, "" ).replace( trimRight, "" ); 668 }, 669 670 // results is for internal usage only 671 makeArray: function( array, results ) { 672 var ret = results || []; 673 674 if ( array != null ) { 675 // The window, strings (and functions) also have 'length' 676 // The extra typeof function check is to prevent crashes 677 // in Safari 2 (See: #3039) 678 // Tweaked logic slightly to handle Blackberry 4.7 RegExp issues #6930 679 var type = jQuery.type(array); 680 681 if ( array.length == null || type === "string" || type === "function" || type === "regexp" || jQuery.isWindow( array ) ) { 682 push.call( ret, array ); 683 } else { 684 jQuery.merge( ret, array ); 685 } 686 } 687 688 return ret; 689 }, 690 691 inArray: function( elem, array ) { 692 if ( array.indexOf ) { 693 return array.indexOf( elem ); 694 } 695 696 for ( var i = 0, length = array.length; i < length; i++ ) { 697 if ( array[ i ] === elem ) { 698 return i; 699 } 700 } 701 702 return -1; 703 }, 704 705 merge: function( first, second ) { 706 var i = first.length, 707 j = 0; 708 709 if ( typeof second.length === "number" ) { 710 for ( var l = second.length; j < l; j++ ) { 711 first[ i++ ] = second[ j ]; 712 } 713 714 } else { 715 while ( second[j] !== undefined ) { 716 first[ i++ ] = second[ j++ ]; 717 } 718 } 719 720 first.length = i; 721 722 return first; 723 }, 724 725 grep: function( elems, callback, inv ) { 726 var ret = [], retVal; 727 inv = !!inv; 728 729 // Go through the array, only saving the items 730 // that pass the validator function 731 for ( var i = 0, length = elems.length; i < length; i++ ) { 732 retVal = !!callback( elems[ i ], i ); 733 if ( inv !== retVal ) { 734 ret.push( elems[ i ] ); 735 } 736 } 737 738 return ret; 739 }, 740 741 // arg is for internal usage only 742 map: function( elems, callback, arg ) { 743 var ret = [], value; 744 745 // Go through the array, translating each of the items to their 746 // new value (or values). 747 for ( var i = 0, length = elems.length; i < length; i++ ) { 748 value = callback( elems[ i ], i, arg ); 749 750 if ( value != null ) { 751 ret[ ret.length ] = value; 752 } 753 } 754 755 return ret.concat.apply( [], ret ); 756 }, 757 758 // A global GUID counter for objects 759 guid: 1, 760 761 proxy: function( fn, proxy, thisObject ) { 762 if ( arguments.length === 2 ) { 763 if ( typeof proxy === "string" ) { 764 thisObject = fn; 765 fn = thisObject[ proxy ]; 766 proxy = undefined; 767 768 } else if ( proxy && !jQuery.isFunction( proxy ) ) { 769 thisObject = proxy; 770 proxy = undefined; 771 } 772 } 773 774 if ( !proxy && fn ) { 775 proxy = function() { 776 return fn.apply( thisObject || this, arguments ); 777 }; 778 } 779 780 // Set the guid of unique handler to the same of original handler, so it can be removed 781 if ( fn ) { 782 proxy.guid = fn.guid = fn.guid || proxy.guid || jQuery.guid++; 783 } 784 785 // So proxy can be declared as an argument 786 return proxy; 787 }, 788 789 // Mutifunctional method to get and set values to a collection 790 // The value/s can be optionally by executed if its a function 791 access: function( elems, key, value, exec, fn, pass ) { 792 var length = elems.length; 793 794 // Setting many attributes 795 if ( typeof key === "object" ) { 796 for ( var k in key ) { 797 jQuery.access( elems, k, key[k], exec, fn, value ); 798 } 799 return elems; 800 } 801 802 // Setting one attribute 803 if ( value !== undefined ) { 804 // Optionally, function values get executed if exec is true 805 exec = !pass && exec && jQuery.isFunction(value); 806 807 for ( var i = 0; i < length; i++ ) { 808 fn( elems[i], key, exec ? value.call( elems[i], i, fn( elems[i], key ) ) : value, pass ); 809 } 810 811 return elems; 812 } 813 814 // Getting an attribute 815 return length ? fn( elems[0], key ) : undefined; 816 }, 817 818 now: function() { 819 return (new Date()).getTime(); 820 }, 821 822 // Use of jQuery.browser is frowned upon. 823 // More details: http://docs.jquery.com/Utilities/jQuery.browser 824 uaMatch: function( ua ) { 825 ua = ua.toLowerCase(); 826 827 var match = rwebkit.exec( ua ) || 828 ropera.exec( ua ) || 829 rmsie.exec( ua ) || 830 ua.indexOf("compatible") < 0 && rmozilla.exec( ua ) || 831 []; 832 833 return { browser: match[1] || "", version: match[2] || "0" }; 834 }, 835 836 browser: {} 837 }); 838 839 // Populate the class2type map 840 jQuery.each("Boolean Number String Function Array Date RegExp Object".split(" "), function(i, name) { 841 class2type[ "[object " + name + "]" ] = name.toLowerCase(); 842 }); 843 844 browserMatch = jQuery.uaMatch( userAgent ); 845 if ( browserMatch.browser ) { 846 jQuery.browser[ browserMatch.browser ] = true; 847 jQuery.browser.version = browserMatch.version; 848 } 849 850 // Deprecated, use jQuery.browser.webkit instead 851 if ( jQuery.browser.webkit ) { 852 jQuery.browser.safari = true; 853 } 854 855 if ( indexOf ) { 856 jQuery.inArray = function( elem, array ) { 857 return indexOf.call( array, elem ); 858 }; 859 } 860 861 // Verify that /s matches non-breaking spaces 862 // (IE fails on this test) 863 if ( !rwhite.test( "/xA0" ) ) { 864 trimLeft = /^[/s/xA0]+/; 865 trimRight = /[/s/xA0]+$/; 866 } 867 868 // All jQuery objects should point back to these 869 rootjQuery = jQuery(document); 870 871 // Cleanup functions for the document ready method 872 if ( document.addEventListener ) { 873 DOMContentLoaded = function() { 874 document.removeEventListener( "DOMContentLoaded", DOMContentLoaded, false ); 875 jQuery.ready(); 876 }; 877 878 } else if ( document.attachEvent ) { 879 DOMContentLoaded = function() { 880 // Make sure body exists, at least, in case IE gets a little overzealous (ticket #5443). 881 if ( document.readyState === "complete" ) { 882 document.detachEvent( "onreadystatechange", DOMContentLoaded ); 883 jQuery.ready(); 884 } 885 }; 886 } 887 888 // The DOM ready check for Internet Explorer 889 function doScrollCheck() { 890 if ( jQuery.isReady ) { 891 return; 892 } 893 894 try { 895 // If IE is used, use the trick by Diego Perini 896 // http://javascript.nwbox.com/IEContentLoaded/ 897 document.documentElement.doScroll("left"); 898 } catch(e) { 899 setTimeout( doScrollCheck, 1 ); 900 return; 901 } 902 903 // and execute any waiting functions 904 jQuery.ready(); 905 } 906 907 // Expose jQuery to the global object 908 return (window.jQuery = window.$ = jQuery); 909 910 })(); 911 912 913 (function() { 914 915 jQuery.support = {}; 916 917 var root = document.documentElement, 918 script = document.createElement("script"), 919 div = document.createElement("div"), 920 id = "script" + jQuery.now(); 921 922 div.style.display = "none"; 923 div.innerHTML = " <link/><table></table><a href='/a' style='color:red;float:left;opacity:.55;'>a</a><input type='checkbox'/>"; 924 925 var all = div.getElementsByTagName("*"), 926 a = div.getElementsByTagName("a")[0], 927 select = document.createElement("select"), 928 opt = select.appendChild( document.createElement("option") ); 929 930 // Can't get basic test support 931 if ( !all || !all.length || !a ) { 932 return; 933 } 934 935 jQuery.support = { 936 // IE strips leading whitespace when .innerHTML is used 937 leadingWhitespace: div.firstChild.nodeType === 3, 938 939 // Make sure that tbody elements aren't automatically inserted 940 // IE will insert them into empty tables 941 tbody: !div.getElementsByTagName("tbody").length, 942 943 // Make sure that link elements get serialized correctly by innerHTML 944 // This requires a wrapper element in IE 945 htmlSerialize: !!div.getElementsByTagName("link").length, 946 947 // Get the style information from getAttribute 948 // (IE uses .cssText insted) 949 style: /red/.test( a.getAttribute("style") ), 950 951 // Make sure that URLs aren't manipulated 952 // (IE normalizes it by default) 953 hrefNormalized: a.getAttribute("href") === "/a", 954 955 // Make sure that element opacity exists 956 // (IE uses filter instead) 957 // Use a regex to work around a WebKit issue. See #5145 958 opacity: /^0.55$/.test( a.style.opacity ), 959 960 // Verify style float existence 961 // (IE uses styleFloat instead of cssFloat) 962 cssFloat: !!a.style.cssFloat, 963 964 // Make sure that if no value is specified for a checkbox 965 // that it defaults to "on". 966 // (WebKit defaults to "" instead) 967 checkOn: div.getElementsByTagName("input")[0].value === "on", 968 969 // Make sure that a selected-by-default option has a working selected property. 970 // (WebKit defaults to false instead of true, IE too, if it's in an optgroup) 971 optSelected: opt.selected, 972 973 // Will be defined later 974 deleteExpando: true, 975 optDisabled: false, 976 checkClone: false, 977 scriptEval: false, 978 noCloneEvent: true, 979 boxModel: null, 980 inlineBlockNeedsLayout: false, 981 shrinkWrapBlocks: false, 982 reliableHiddenOffsets: true 983 }; 984 985 // Make sure that the options inside disabled selects aren't marked as disabled 986 // (WebKit marks them as diabled) 987 select.disabled = true; 988 jQuery.support.optDisabled = !opt.disabled; 989 990 script.type = "text/javascript"; 991 try { 992 script.appendChild( document.createTextNode( "window." + id + "=1;" ) ); 993 } catch(e) {} 994 995 root.insertBefore( script, root.firstChild ); 996 997 // Make sure that the execution of code works by injecting a script 998 // tag with appendChild/createTextNode 999 // (IE doesn't support this, fails, and uses .text instead)1000 if ( window[ id ] ) {1001 jQuery.support.scriptEval = true;1002 delete window[ id ];1003 }1004 1005 // Test to see if it's possible to delete an expando from an element1006 // Fails in Internet Explorer1007 try {1008 delete script.test;1009 1010 } catch(e) {1011 jQuery.support.deleteExpando = false;1012 }1013 1014 root.removeChild( script );1015 1016 if ( div.attachEvent && div.fireEvent ) {1017 div.attachEvent("onclick", function click() {1018 // Cloning a node shouldn't copy over any1019 // bound event handlers (IE does this)1020 jQuery.support.noCloneEvent = false;1021 div.detachEvent("onclick", click);1022 });1023 div.cloneNode(true).fireEvent("onclick");1024 }1025 1026 div = document.createElement("div");1027 div.innerHTML = "<input type='radio' name='radiotest' checked='checked'/>";1028 1029 var fragment = document.createDocumentFragment();1030 fragment.appendChild( div.firstChild );1031 1032 // WebKit doesn't clone checked state correctly in fragments1033 jQuery.support.checkClone = fragment.cloneNode(true).cloneNode(true).lastChild.checked;1034 1035 // Figure out if the W3C box model works as expected1036 // document.body must exist before we can do this1037 jQuery(function() {1038 var div = document.createElement("div");1039 div.style.width = div.style.paddingLeft = "1px";1040 1041 document.body.appendChild( div );1042 jQuery.boxModel = jQuery.support.boxModel = div.offsetWidth === 2;1043 1044 if ( "zoom" in div.style ) {1045 // Check if natively block-level elements act like inline-block1046 // elements when setting their display to 'inline' and giving1047 // them layout1048 // (IE < 8 does this)1049 div.style.display = "inline";1050 div.style.zoom = 1;1051 jQuery.support.inlineBlockNeedsLayout = div.offsetWidth === 2;1052 1053 // Check if elements with layout shrink-wrap their children1054 // (IE 6 does this)1055 div.style.display = "";1056 div.innerHTML = "<div style='width:4px;'></div>";1057 jQuery.support.shrinkWrapBlocks = div.offsetWidth !== 2;1058 }1059 1060 div.innerHTML = "<table><tr><td style='padding:0;display:none'></td><td>t</td></tr></table>";1061 var tds = div.getElementsByTagName("td");1062 1063 // Check if table cells still have offsetWidth/Height when they are set1064 // to display:none and there are still other visible table cells in a1065 // table row; if so, offsetWidth/Height are not reliable for use when1066 // determining if an element has been hidden directly using1067 // display:none (it is still safe to use offsets if a parent element is1068 // hidden; don safety goggles and see bug #4512 for more information).1069 // (only IE 8 fails this test)1070 jQuery.support.reliableHiddenOffsets = tds[0].offsetHeight === 0;1071 1072 tds[0].style.display = "";1073 tds[1].style.display = "none";1074 1075 // Check if empty table cells still have offsetWidth/Height1076 // (IE < 8 fail this test)1077 jQuery.support.reliableHiddenOffsets = jQuery.support.reliableHiddenOffsets && tds[0].offsetHeight === 0;1078 div.innerHTML = "";1079 1080 document.body.removeChild( div ).style.display = "none";1081 div = tds = null;1082 });1083 1084 // Technique from Juriy Zaytsev1085 // http://thinkweb2.com/projects/prototype/detecting-event-support-without-browser-sniffing/1086 var eventSupported = function( eventName ) {1087 var el = document.createElement("div");1088 eventName = "on" + eventName;1089 1090 var isSupported = (eventName in el);1091 if ( !isSupported ) {1092 el.setAttribute(eventName, "return;");1093 isSupported = typeof el[eventName] === "function";1094 }1095 el = null;1096 1097 return isSupported;1098 };1099 1100 jQuery.support.submitBubbles = eventSupported("submit");1101 jQuery.support.changeBubbles = eventSupported("change");1102 1103 // release memory in IE1104 root = script = div = all = a = null;1105 })();1106 1107 1108 1109 var windowData = {},1110 rbrace = /^(?:/{.*/}|/[.*/])$/;1111 1112 jQuery.extend({1113 cache: {},1114 1115 // Please use with caution1116 uuid: 0,1117 1118 // Unique for each copy of jQuery on the page 1119 expando: "jQuery" + jQuery.now(),1120 1121 // The following elements throw uncatchable exceptions if you1122 // attempt to add expando properties to them.1123 noData: {1124 "embed": true,1125 // Ban all objects except for Flash (which handle expandos)1126 "object": "clsid:D27CDB6E-AE6D-11cf-96B8-444553540000",1127 "applet": true1128 },1129 1130 data: function( elem, name, data ) {1131 if ( !jQuery.acceptData( elem ) ) {1132 return;1133 }1134 1135 elem = elem == window ?1136 windowData :1137 elem;1138 1139 var isNode = elem.nodeType,1140 id = isNode ? elem[ jQuery.expando ] : null,1141 cache = jQuery.cache, thisCache;1142 1143 if ( isNode && !id && typeof name === "string" && data === undefined ) {1144 return;1145 }1146 1147 // Get the data from the object directly1148 if ( !isNode ) {1149 cache = elem;1150 1151 // Compute a unique ID for the element1152 } else if ( !id ) {1153 elem[ jQuery.expando ] = id = ++jQuery.uuid;1154 }1155 1156 // Avoid generating a new cache unless none exists and we1157 // want to manipulate it.1158 if ( typeof name === "object" ) {1159 if ( isNode ) {1160 cache[ id ] = jQuery.extend(cache[ id ], name);1161 1162 } else {1163 jQuery.extend( cache, name );1164 }1165 1166 } else if ( isNode && !cache[ id ] ) {1167 cache[ id ] = {};1168 }1169 1170 thisCache = isNode ? cache[ id ] : cache;1171 1172 // Prevent overriding the named cache with undefined values1173 if ( data !== undefined ) {1174 thisCache[ name ] = data;1175 }1176 1177 return typeof name === "string" ? thisCache[ name ] : thisCache;1178 },1179 1180 removeData: function( elem, name ) {1181 if ( !jQuery.acceptData( elem ) ) {1182 return;1183 }1184 1185 elem = elem == window ?1186 windowData :1187 elem;1188 1189 var isNode = elem.nodeType,1190 id = isNode ? elem[ jQuery.expando ] : elem,1191 cache = jQuery.cache,1192 thisCache = isNode ? cache[ id ] : id;1193 1194 // If we want to remove a specific section of the element's data1195 if ( name ) {1196 if ( thisCache ) {1197 // Remove the section of cache data1198 delete thisCache[ name ];1199 1200 // If we've removed all the data, remove the element's cache1201 if ( isNode && jQuery.isEmptyObject(thisCache) ) {1202 jQuery.removeData( elem );1203 }1204 }1205 1206 // Otherwise, we want to remove all of the element's data1207 } else {1208 if ( isNode && jQuery.support.deleteExpando ) {1209 delete elem[ jQuery.expando ];1210 1211 } else if ( elem.removeAttribute ) {1212 elem.removeAttribute( jQuery.expando );1213 1214 // Completely remove the data cache1215 } else if ( isNode ) {1216 delete cache[ id ];1217 1218 // Remove all fields from the object1219 } else {1220 for ( var n in elem ) {1221 delete elem[ n ];1222 }1223 }1224 }1225 },1226 1227 // A method for determining if a DOM node can handle the data expando1228 acceptData: function( elem ) {1229 if ( elem.nodeName ) {1230 var match = jQuery.noData[ elem.nodeName.toLowerCase() ];1231 1232 if ( match ) {1233 return !(match === true || elem.getAttribute("classid") !== match);1234 }1235 }1236 1237 return true;1238 }1239 });1240 1241 jQuery.fn.extend({1242 data: function( key, value ) {1243 var data = null;1244 1245 if ( typeof key === "undefined" ) {1246 if ( this.length ) {1247 var attr = this[0].attributes, name;1248 data = jQuery.data( this[0] );1249 1250 for ( var i = 0, l = attr.length; i < l; i++ ) {1251 name = attr[i].name;1252 1253 if ( name.indexOf( "data-" ) === 0 ) {1254 name = name.substr( 5 );1255 dataAttr( this[0], name, data[ name ] );1256 }1257 }1258 }1259 1260 return data;1261 1262 } else if ( typeof key === "object" ) {1263 return this.each(function() {1264 jQuery.data( this, key );1265 });1266 }1267 1268 var parts = key.split(".");1269 parts[1] = parts[1] ? "." + parts[1] : "";1270 1271 if ( value === undefined ) {1272 data = this.triggerHandler("getData" + parts[1] + "!", [parts[0]]);1273 1274 // Try to fetch any internally stored data first1275 if ( data === undefined && this.length ) {1276 data = jQuery.data( this[0], key );1277 data = dataAttr( this[0], key, data );1278 }1279 1280 return data === undefined && parts[1] ?1281 this.data( parts[0] ) :1282 data;1283 1284 } else {1285 return this.each(function() {1286 var $this = jQuery( this ),1287 args = [ parts[0], value ];1288 1289 $this.triggerHandler( "setData" + parts[1] + "!", args );1290 jQuery.data( this, key, value );1291 $this.triggerHandler( "changeData" + parts[1] + "!", args );1292 });1293 }1294 },1295 1296 removeData: function( key ) {1297 return this.each(function() {1298 jQuery.removeData( this, key );1299 });1300 }1301 });1302 1303 function dataAttr( elem, key, data ) {1304 // If nothing was found internally, try to fetch any1305 // data from the HTML5 data-* attribute1306 if ( data === undefined && elem.nodeType === 1 ) {1307 data = elem.getAttribute( "data-" + key );1308 1309 if ( typeof data === "string" ) {1310 try {1311 data = data === "true" ? true :1312 data === "false" ? false :1313 data === "null" ? null :1314 !jQuery.isNaN( data ) ? parseFloat( data ) :1315 rbrace.test( data ) ? jQuery.parseJSON( data ) :1316 data;1317 } catch( e ) {}1318 1319 // Make sure we set the data so it isn't changed later1320 jQuery.data( elem, key, data );1321 1322 } else {1323 data = undefined;1324 }1325 }1326 1327 return data;1328 }1329 1330 1331 1332 1333 jQuery.extend({1334 queue: function( elem, type, data ) {1335 if ( !elem ) {1336 return;1337 }1338 1339 type = (type || "fx") + "queue";1340 var q = jQuery.data( elem, type );1341 1342 // Speed up dequeue by getting out quickly if this is just a lookup1343 if ( !data ) {1344 return q || [];1345 }1346 1347 if ( !q || jQuery.isArray(data) ) {1348 q = jQuery.data( elem, type, jQuery.makeArray(data) );1349 1350 } else {1351 q.push( data );1352 }1353 1354 return q;1355 },1356 1357 dequeue: function( elem, type ) {1358 type = type || "fx";1359 1360 var queue = jQuery.queue( elem, type ),1361 fn = queue.shift();1362 1363 // If the fx queue is dequeued, always remove the progress sentinel1364 if ( fn === "inprogress" ) {1365 fn = queue.shift();1366 }1367 1368 if ( fn ) {1369 // Add a progress sentinel to prevent the fx queue from being1370 // automatically dequeued1371 if ( type === "fx" ) {1372 queue.unshift("inprogress");1373 }1374 1375 fn.call(elem, function() {1376 jQuery.dequeue(elem, type);1377 });1378 }1379 }1380 });1381 1382 jQuery.fn.extend({1383 queue: function( type, data ) {1384 if ( typeof type !== "string" ) {1385 data = type;1386 type = "fx";1387 }1388 1389 if ( data === undefined ) {1390 return jQuery.queue( this[0], type );1391 }1392 return this.each(function( i ) {1393 var queue = jQuery.queue( this, type, data );1394 1395 if ( type === "fx" && queue[0] !== "inprogress" ) {1396 jQuery.dequeue( this, type );1397 }1398 });1399 },1400 dequeue: function( type ) {1401 return this.each(function() {1402 jQuery.dequeue( this, type );1403 });1404 },1405 1406 // Based off of the plugin by Clint Helfers, with permission.1407 // http://blindsignals.com/index.php/2009/07/jquery-delay/1408 delay: function( time, type ) {1409 time = jQuery.fx ? jQuery.fx.speeds[time] || time : time;1410 type = type || "fx";1411 1412 return this.queue( type, function() {1413 var elem = this;1414 setTimeout(function() {1415 jQuery.dequeue( elem, type );1416 }, time );1417 });1418 },1419 1420 clearQueue: function( type ) {1421 return this.queue( type || "fx", [] );1422 }1423 });1424 1425 1426 1427 1428 var rclass = /[/n/t]/g,1429 rspaces = //s+/,1430 rreturn = //r/g,1431 rspecialurl = /^(?:href|src|style)$/,1432 rtype = /^(?:button|input)$/i,1433 rfocusable = /^(?:button|input|object|select|textarea)$/i,1434 rclickable = /^a(?:rea)?$/i,1435 rradiocheck = /^(?:radio|checkbox)$/i;1436 1437 jQuery.props = {1438 "for": "htmlFor",1439 "class": "className",1440 readonly: "readOnly",1441 maxlength: "maxLength",1442 cellspacing: "cellSpacing",1443 rowspan: "rowSpan",1444 colspan: "colSpan",1445 tabindex: "tabIndex",1446 usemap: "useMap",1447 frameborder: "frameBorder"1448 };1449 1450 jQuery.fn.extend({1451 attr: function( name, value ) {1452 return jQuery.access( this, name, value, true, jQuery.attr );1453 },1454 1455 removeAttr: function( name, fn ) {1456 return this.each(function(){1457 jQuery.attr( this, name, "" );1458 if ( this.nodeType === 1 ) {1459 this.removeAttribute( name );1460 }1461 });1462 },1463 1464 addClass: function( value ) {1465 if ( jQuery.isFunction(value) ) {1466 return this.each(function(i) {1467 var self = jQuery(this);1468 self.addClass( value.call(this, i, self.attr("class")) );1469 });1470 }1471 1472 if ( value && typeof value === "string" ) {1473 var classNames = (value || "").split( rspaces );1474 1475 for ( var i = 0, l = this.length; i < l; i++ ) {1476 var elem = this[i];1477 1478 if ( elem.nodeType === 1 ) {1479 if ( !elem.className ) {1480 elem.className = value;1481 1482 } else {1483 var className = " " + elem.className + " ",1484 setClass = elem.className;1485 1486 for ( var c = 0, cl = classNames.length; c < cl; c++ ) {1487 if ( className.indexOf( " " + classNames[c] + " " ) < 0 ) {1488 setClass += " " + classNames[c];1489 }1490 }1491 elem.className = jQuery.trim( setClass );1492 }1493 }1494 }1495 }1496 1497 return this;1498 },1499 1500 removeClass: function( value ) {1501 if ( jQuery.isFunction(value) ) {1502 return this.each(function(i) {1503 var self = jQuery(this);1504 self.removeClass( value.call(this, i, self.attr("class")) );1505 });1506 }1507 1508 if ( (value && typeof value === "string") || value === undefined ) {1509 var classNames = (value || "").split( rspaces );1510 1511 for ( var i = 0, l = this.length; i < l; i++ ) {1512 var elem = this[i];1513 1514 if ( elem.nodeType === 1 && elem.className ) {1515 if ( value ) {1516 var className = (" " + elem.className + " ").replace(rclass, " ");1517 for ( var c = 0, cl = classNames.length; c < cl; c++ ) {1518 className = className.replace(" " + classNames[c] + " ", " ");1519 }1520 elem.className = jQuery.trim( className );1521 1522 } else {1523 elem.className = "";1524 }1525 }1526 }1527 }1528 1529 return this;1530 },1531 1532 toggleClass: function( value, stateVal ) {1533 var type = typeof value,1534 isBool = typeof stateVal === "boolean";1535 1536 if ( jQuery.isFunction( value ) ) {1537 return this.each(function(i) {1538 var self = jQuery(this);1539 self.toggleClass( value.call(this, i, self.attr("class"), stateVal), stateVal );1540 });1541 }1542 1543 return this.each(function() {1544 if ( type === "string" ) {1545 // toggle individual class names1546 var className,1547 i = 0,1548 self = jQuery( this ),1549 state = stateVal,1550 classNames = value.split( rspaces );1551 1552 while ( (className = classNames[ i++ ]) ) {1553 // check each className given, space seperated list1554 state = isBool ? state : !self.hasClass( className );1555 self[ state ? "addClass" : "removeClass" ]( className );1556 }1557 1558 } else if ( type === "undefined" || type === "boolean" ) {1559 if ( this.className ) {1560 // store className if set1561 jQuery.data( this, "__className__", this.className );1562 }1563 1564 // toggle whole className1565 this.className = this.className || value === false ? "" : jQuery.data( this, "__className__" ) || "";1566 }1567 });1568 },1569 1570 hasClass: function( selector ) {1571 var className = " " + selector + " ";1572 for ( var i = 0, l = this.length; i < l; i++ ) {1573 if ( (" " + this[i].className + " ").replace(rclass, " ").indexOf( className ) > -1 ) {1574 return true;1575 }1576 }1577 1578 return false;1579 },1580 1581 val: function( value ) {1582 if ( !arguments.length ) {1583 var elem = this[0];1584 1585 if ( elem ) {1586 if ( jQuery.nodeName( elem, "option" ) ) {1587 // attributes.value is undefined in Blackberry 4.7 but1588 // uses .value. See #69321589 var val = elem.attributes.value;1590 return !val || val.specified ? elem.value : elem.text;1591 }1592 1593 // We need to handle select boxes special1594 if ( jQuery.nodeName( elem, "select" ) ) {1595 var index = elem.selectedIndex,1596 values = [],1597 options = elem.options,1598 one = elem.type === "select-one";1599 1600 // Nothing was selected1601 if ( index < 0 ) {1602 return null;1603 }1604 1605 // Loop through all the selected options1606 for ( var i = one ? index : 0, max = one ? index + 1 : options.length; i < max; i++ ) {1607 var option = options[ i ];1608 1609 // Don't return options that are disabled or in a disabled optgroup1610 if ( option.selected && (jQuery.support.optDisabled ? !option.disabled : option.getAttribute("disabled") === null) && 1611 (!option.parentNode.disabled || !jQuery.nodeName( option.parentNode, "optgroup" )) ) {1612 1613 // Get the specific value for the option1614 value = jQuery(option).val();1615 1616 // We don't need an array for one selects1617 if ( one ) {1618 return value;1619 }1620 1621 // Multi-Selects return an array1622 values.push( value );1623 }1624 }1625 1626 return values;1627 }1628 1629 // Handle the case where in Webkit "" is returned instead of "on" if a value isn't specified1630 if ( rradiocheck.test( elem.type ) && !jQuery.support.checkOn ) {1631 return elem.getAttribute("value") === null ? "on" : elem.value;1632 }1633 1634 1635 // Everything else, we just grab the value1636 return (elem.value || "").replace(rreturn, "");1637 1638 }1639 1640 return undefined;1641 }1642 1643 var isFunction = jQuery.isFunction(value);1644 1645 return this.each(function(i) {1646 var self = jQuery(this), val = value;1647 1648 if ( this.nodeType !== 1 ) {1649 return;1650 }1651 1652 if ( isFunction ) {1653 val = value.call(this, i, self.val());1654 }1655 1656 // Treat null/undefined as ""; convert numbers to string1657 if ( val == null ) {1658 val = "";1659 } else if ( typeof val === "number" ) {1660 val += "";1661 } else if ( jQuery.isArray(val) ) {1662 val = jQuery.map(val, function (value) {1663 return value == null ? "" : value + "";1664 });1665 }1666 1667 if ( jQuery.isArray(val) && rradiocheck.test( this.type ) ) {1668 this.checked = jQuery.inArray( self.val(), val ) >= 0;1669 1670 } else if ( jQuery.nodeName( this, "select" ) ) {1671 var values = jQuery.makeArray(val);1672 1673 jQuery( "option", this ).each(function() {1674 this.selected = jQuery.inArray( jQuery(this).val(), values ) >= 0;1675 });1676 1677 if ( !values.length ) {1678 this.selectedIndex = -1;1679 }1680 1681 } else {1682 this.value = val;1683 }1684 });1685 }1686 });1687 1688 jQuery.extend({1689 attrFn: {1690 val: true,1691 css: true,1692 html: true,1693 text: true,1694 data: true,1695 width: true,1696 height: true,1697 offset: true1698 },1699 1700 attr: function( elem, name, value, pass ) {1701 // don't set attributes on text and comment nodes1702 if ( !elem || elem.nodeType === 3 || elem.nodeType === 8 ) {1703 return undefined;1704 }1705 1706 if ( pass && name in jQuery.attrFn ) {1707 return jQuery(elem)[name](value);1708 }1709 1710 var notxml = elem.nodeType !== 1 || !jQuery.isXMLDoc( elem ),1711 // Whether we are setting (or getting)1712 set = value !== undefined;1713 1714 // Try to normalize/fix the name1715 name = notxml && jQuery.props[ name ] || name;1716 1717 // These attributes require special treatment1718 var special = rspecialurl.test( name );1719 1720 // Safari mis-reports the default selected property of an option1721 // Accessing the parent's selectedIndex property fixes it1722 if ( name === "selected" && !jQuery.support.optSelected ) {1723 var parent = elem.parentNode;1724 if ( parent ) {1725 parent.selectedIndex;1726 1727 // Make sure that it also works with optgroups, see #57011728 if ( parent.parentNode ) {1729 parent.parentNode.selectedIndex;1730 }1731 }1732 }1733 1734 // If applicable, access the attribute via the DOM 0 way1735 // 'in' checks fail in Blackberry 4.7 #69311736 if ( (name in elem || elem[ name ] !== undefined) && notxml && !special ) {1737 if ( set ) {1738 // We can't allow the type property to be changed (since it causes problems in IE)1739 if ( name === "type" && rtype.test( elem.nodeName ) && elem.parentNode ) {1740 jQuery.error( "type property can't be changed" );1741 }1742 1743 if ( value === null ) {1744 if ( elem.nodeType === 1 ) {1745 elem.removeAttribute( name );1746 }1747 1748 } else {1749 elem[ name ] = value;1750 }1751 }1752 1753 // browsers index elements by id/name on forms, give priority to attributes.1754 if ( jQuery.nodeName( elem, "form" ) && elem.getAttributeNode(name) ) {1755 return elem.getAttributeNode( name ).nodeValue;1756 }1757 1758 // elem.tabIndex doesn't always return the correct value when it hasn't been explicitly set1759 // http://fluidproject.org/blog/2008/01/09/getting-setting-and-removing-tabindex-values-with-javascript/1760 if ( name === "tabIndex" ) {1761 var attributeNode = elem.getAttributeNode( "tabIndex" );1762 1763 return attributeNode && attributeNode.specified ?1764 attributeNode.value :1765 rfocusable.test( elem.nodeName ) || rclickable.test( elem.nodeName ) && elem.href ?1766 0 :1767 undefined;1768 }1769 1770 return elem[ name ];1771 }1772 1773 if ( !jQuery.support.style && notxml && name === "style" ) {1774 if ( set ) {1775 elem.style.cssText = "" + value;1776 }1777 1778 return elem.style.cssText;1779 }1780 1781 if ( set ) {1782 // convert the value to a string (all browsers do this but IE) see #10701783 elem.setAttribute( name, "" + value );1784 }1785 1786 // Ensure that missing attributes return undefined1787 // Blackberry 4.7 returns "" from getAttribute #69381788 if ( !elem.attributes[ name ] && (elem.hasAttribute && !elem.hasAttribute( name )) ) {1789 return undefined;1790 }1791 1792 var attr = !jQuery.support.hrefNormalized && notxml && special ?1793 // Some attributes require a special call on IE1794 elem.getAttribute( name, 2 ) :1795 elem.getAttribute( name );1796 1797 // Non-existent attributes return null, we normalize to undefined1798 return attr === null ? undefined : attr;1799 }1800 });1801 1802 1803 1804 1805 var rnamespaces = //.(.*)$/,1806 rformElems = /^(?:textarea|input|select)$/i,1807 rperiod = //./g,1808 rspace = / /g,1809 rescape = /[^/w/s.|`]/g,1810 fcleanup = function( nm ) {1811 return nm.replace(rescape, "//$&");1812 },1813 focusCounts = { focusin: 0, focusout: 0 };1814 1815 /*1816 * A number of helper functions used for managing events.1817 * Many of the ideas behind this code originated from1818 * Dean Edwards' addEvent library.1819 */1820 jQuery.event = {1821 1822 // Bind an event to an element1823 // Original by Dean Edwards1824 add: function( elem, types, handler, data ) {1825 if ( elem.nodeType === 3 || elem.nodeType === 8 ) {1826 return;1827 }1828 1829 // For whatever reason, IE has trouble passing the window object1830 // around, causing it to be cloned in the process1831 if ( jQuery.isWindow( elem ) && ( elem !== window && !elem.frameElement ) ) {1832 elem = window;1833 }1834 1835 if ( handler === false ) {1836 handler = returnFalse;1837 } else if ( !handler ) {1838 // Fixes bug #7229. Fix recommended by jdalton1839 return;1840 }1841 1842 var handleObjIn, handleObj;1843 1844 if ( handler.handler ) {1845 handleObjIn = handler;1846 handler = handleObjIn.handler;1847 }1848 1849 // Make sure that the function being executed has a unique ID1850 if ( !handler.guid ) {1851 handler.guid = jQuery.guid++;1852 }1853 1854 // Init the element's event structure1855 var elemData = jQuery.data( elem );1856 1857 // If no elemData is found then we must be trying to bind to one of the1858 // banned noData elements1859 if ( !elemData ) {1860 return;1861 }1862 1863 // Use a key less likely to result in collisions for plain JS objects.1864 // Fixes bug #7150.1865 var eventKey = elem.nodeType ? "events" : "__events__",1866 events = elemData[ eventKey ],1867 eventHandle = elemData.handle;1868 1869 if ( typeof events === "function" ) {1870 // On plain objects events is a fn that holds the the data1871 // which prevents this data from being JSON serialized1872 // the function does not need to be called, it just contains the data1873 eventHandle = events.handle;1874 events = events.events;1875 1876 } else if ( !events ) {1877 if ( !elem.nodeType ) {1878 // On plain objects, create a fn that acts as the holder1879 // of the values to avoid JSON serialization of event data1880 elemData[ eventKey ] = elemData = function(){};1881 }1882 1883 elemData.events = events = {};1884 }1885 1886 if ( !eventHandle ) {1887 elemData.handle = eventHandle = function() {1888 // Handle the second event of a trigger and when1889 // an event is called after a page has unloaded1890 return typeof jQuery !== "undefined" && !jQuery.event.triggered ?1891 jQuery.event.handle.apply( eventHandle.elem, arguments ) :1892 undefined;1893 };1894 }1895 1896 // Add elem as a property of the handle function1897 // This is to prevent a memory leak with non-native events in IE.1898 eventHandle.elem = elem;1899 1900 // Handle multiple events separated by a space1901 // jQuery(...).bind("mouseover mouseout", fn);1902 types = types.split(" ");1903 1904 var type, i = 0, namespaces;1905 1906 while ( (type = types[ i++ ]) ) {1907 handleObj = handleObjIn ?1908 jQuery.extend({}, handleObjIn) :1909 { handler: handler, data: data };1910 1911 // Namespaced event handlers1912 if ( type.indexOf(".") > -1 ) {1913 namespaces = type.split(".");1914 type = namespaces.shift();1915 handleObj.namespace = namespaces.slice(0).sort().join(".");1916 1917 } else {1918 namespaces = [];1919 handleObj.namespace = "";1920 }1921 1922 handleObj.type = type;1923 if ( !handleObj.guid ) {1924 handleObj.guid = handler.guid;1925 }1926 1927 // Get the current list of functions bound to this event1928 var handlers = events[ type ],1929 special = jQuery.event.special[ type ] || {};1930 1931 // Init the event handler queue1932 if ( !handlers ) {1933 handlers = events[ type ] = [];1934 1935 // Check for a special event handler1936 // Only use addEventListener/attachEvent if the special1937 // events handler returns false1938 if ( !special.setup || special.setup.call( elem, data, namespaces, eventHandle ) === false ) {1939 // Bind the global event handler to the element1940 if ( elem.addEventListener ) {1941 elem.addEventListener( type, eventHandle, false );1942 1943 } else if ( elem.attachEvent ) {1944 elem.attachEvent( "on" + type, eventHandle );1945 }1946 }1947 }1948 1949 if ( special.add ) { 1950 special.add.call( elem, handleObj ); 1951 1952 if ( !handleObj.handler.guid ) {1953 handleObj.handler.guid = handler.guid;1954 }1955 }1956 1957 // Add the function to the element's handler list1958 handlers.push( handleObj );1959 1960 // Keep track of which events have been used, for global triggering1961 jQuery.event.global[ type ] = true;1962 }1963 1964 // Nullify elem to prevent memory leaks in IE1965 elem = null;1966 },1967 1968 global: {},1969 1970 // Detach an event or set of events from an element1971 remove: function( elem, types, handler, pos ) {1972 // don't do events on text and comment nodes1973 if ( elem.nodeType === 3 || elem.nodeType === 8 ) {1974 return;1975 }1976 1977 if ( handler === false ) {1978 handler = returnFalse;1979 }1980 1981 var ret, type, fn, j, i = 0, all, namespaces, namespace, special, eventType, handleObj, origType,1982 eventKey = elem.nodeType ? "events" : "__events__",1983 elemData = jQuery.data( elem ),1984 events = elemData && elemData[ eventKey ];1985 1986 if ( !elemData || !events ) {1987 return;1988 }1989 1990 if ( typeof events === "function" ) {1991 elemData = events;1992 events = events.events;1993 }1994 1995 // types is actually an event object here1996 if ( types && types.type ) {1997 handler = types.handler;1998 types = types.type;1999 }2000 2001 // Unbind all events for the element2002 if ( !types || typeof types === "string" && types.charAt(0) === "." ) {2003 types = types || "";2004 2005 for ( type in events ) {2006 jQuery.event.remove( elem, type + types );2007 }2008 2009 return;2010 }2011 2012 // Handle multiple events separated by a space2013 // jQuery(...).unbind("mouseover mouseout", fn);2014 types = types.split(" ");2015 2016 while ( (type = types[ i++ ]) ) {2017 origType = type;2018 handleObj = null;2019 all = type.indexOf(".") < 0;2020 namespaces = [];2021 2022 if ( !all ) {2023 // Namespaced event handlers2024 namespaces = type.split(".");2025 type = namespaces.shift();2026 2027 namespace = new RegExp("(^|//.)" + 2028 jQuery.map( namespaces.slice(0).sort(), fcleanup ).join("//.(?:.*//.)?") + "(//.|$)");2029 }2030 2031 eventType = events[ type ];2032 2033 if ( !eventType ) {2034 continue;2035 }2036 2037 if ( !handler ) {2038 for ( j = 0; j < eventType.length; j++ ) {2039 handleObj = eventType[ j ];2040 2041 if ( all || namespace.test( handleObj.namespace ) ) {2042 jQuery.event.remove( elem, origType, handleObj.handler, j );2043 eventType.splice( j--, 1 );2044 }2045 }2046 2047 continue;2048 }2049 2050 special = jQuery.event.special[ type ] || {};2051 2052 for ( j = pos || 0; j < eventType.length; j++ ) {2053 handleObj = eventType[ j ];2054 2055 if ( handler.guid === handleObj.guid ) {2056 // remove the given handler for the given type2057 if ( all || namespace.test( handleObj.namespace ) ) {2058 if ( pos == null ) {2059 eventType.splice( j--, 1 );2060 }2061 2062 if ( special.remove ) {2063 special.remove.call( elem, handleObj );2064 }2065 }2066 2067 if ( pos != null ) {2068 break;2069 }2070 }2071 }2072 2073 // remove generic event handler if no more handlers exist2074 if ( eventType.length === 0 || pos != null && eventType.length === 1 ) {2075 if ( !special.teardown || special.teardown.call( elem, namespaces ) === false ) {2076 jQuery.removeEvent( elem, type, elemData.handle );2077 }2078 2079 ret = null;2080 delete events[ type ];2081 }2082 }2083 2084 // Remove the expando if it's no longer used2085 if ( jQuery.isEmptyObject( events ) ) {2086 var handle = elemData.handle;2087 if ( handle ) {2088 handle.elem = null;2089 }2090 2091 delete elemData.events;2092 delete elemData.handle;2093 2094 if ( typeof elemData === "function" ) {2095 jQuery.removeData( elem, eventKey );2096 2097 } else if ( jQuery.isEmptyObject( elemData ) ) {2098 jQuery.removeData( elem );2099 }2100 }2101 },2102 2103 // bubbling is internal2104 trigger: function( event, data, elem /*, bubbling */ ) {2105 // Event object or event type2106 var type = event.type || event,2107 bubbling = arguments[3];2108 2109 if ( !bubbling ) {2110 event = typeof event === "object" ?2111 // jQuery.Event object2112 event[ jQuery.expando ] ? event :2113 // Object literal2114 jQuery.extend( jQuery.Event(type), event ) :2115 // Just the event type (string)2116 jQuery.Event(type);2117 2118 if ( type.indexOf("!") >= 0 ) {2119 event.type = type = type.slice(0, -1);2120 event.exclusive = true;2121 }2122 2123 // Handle a global trigger2124 if ( !elem ) {2125 // Don't bubble custom events when global (to avoid too much overhead)2126 event.stopPropagation();2127 2128 // Only trigger if we've ever bound an event for it2129 if ( jQuery.event.global[ type ] ) {2130 jQuery.each( jQuery.cache, function() {2131 if ( this.events && this.events[type] ) {2132 jQuery.event.trigger( event, data, this.handle.elem );2133 }2134 });2135 }2136 }2137 2138 // Handle triggering a single element2139 2140 // don't do events on text and comment nodes2141 if ( !elem || elem.nodeType === 3 || elem.nodeType === 8 ) {2142 return undefined;2143 }2144 2145 // Clean up in case it is reused2146 event.result = undefined;2147 event.target = elem;2148 2149 // Clone the incoming data, if any2150 data = jQuery.makeArray( data );2151 data.unshift( event );2152 }2153 2154 event.currentTarget = elem;2155 2156 // Trigger the event, it is assumed that "handle" is a function2157 var handle = elem.nodeType ?2158 jQuery.data( elem, "handle" ) :2159 (jQuery.data( elem, "__events__" ) || {}).handle;2160 2161 if ( handle ) {2162 handle.apply( elem, data );2163 }2164 2165 var parent = elem.parentNode || elem.ownerDocument;2166 2167 // Trigger an inline bound script2168 try {2169 if ( !(elem && elem.nodeName && jQuery.noData[elem.nodeName.toLowerCase()]) ) {2170 if ( elem[ "on" + type ] && elem[ "on" + type ].apply( elem, data ) === false ) {2171 event.result = false;2172 event.preventDefault();2173 }2174 }2175 2176 // prevent IE from throwing an error for some elements with some event types, see #35332177 } catch (inlineError) {}2178 2179 if ( !event.isPropagationStopped() && parent ) {2180 jQuery.event.trigger( event, data, parent, true );2181 2182 } else if ( !event.isDefaultPrevented() ) {2183 var old,2184 target = event.target,2185 targetType = type.replace( rnamespaces, "" ),2186 isClick = jQuery.nodeName( target, "a" ) && targetType === "click",2187 special = jQuery.event.special[ targetType ] || {};2188 2189 if ( (!special._default || special._default.call( elem, event ) === false) && 2190 !isClick && !(target && target.nodeName && jQuery.noData[target.nodeName.toLowerCase()]) ) {2191 2192 try {2193 if ( target[ targetType ] ) {2194 // Make sure that we don't accidentally re-trigger the onFOO events2195 old = target[ "on" + targetType ];2196 2197 if ( old ) {2198 target[ "on" + targetType ] = null;2199 }2200 2201 jQuery.event.triggered = true;2202 target[ targetType ]();2203 }2204 2205 // prevent IE from throwing an error for some elements with some event types, see #35332206 } catch (triggerError) {}2207 2208 if ( old ) {2209 target[ "on" + targetType ] = old;2210 }2211 2212 jQuery.event.triggered = false;2213 }2214 }2215 },2216 2217 handle: function( event ) {2218 var all, handlers, namespaces, namespace_re, events,2219 namespace_sort = [],2220 args = jQuery.makeArray( arguments );2221 2222 event = args[0] = jQuery.event.fix( event || window.event );2223 event.currentTarget = this;2224 2225 // Namespaced event handlers2226 all = event.type.indexOf(".") < 0 && !event.exclusive;2227 2228 if ( !all ) {2229 namespaces = event.type.split(".");2230 event.type = namespaces.shift();2231 namespace_sort = namespaces.slice(0).sort();2232 namespace_re = new RegExp("(^|//.)" + namespace_sort.join("//.(?:.*//.)?") + "(//.|$)");2233 }2234 2235 event.namespace = event.namespace || namespace_sort.join(".");2236 2237 events = jQuery.data(this, this.nodeType ? "events" : "__events__");2238 2239 if ( typeof events === "function" ) {2240 events = events.events;2241 }2242 2243 handlers = (events || {})[ event.type ];2244 2245 if ( events && handlers ) {2246 // Clone the handlers to prevent manipulation2247 handlers = handlers.slice(0);2248 2249 for ( var j = 0, l = handlers.length; j < l; j++ ) {2250 var handleObj = handlers[ j ];2251 2252 // Filter the functions by class2253 if ( all || namespace_re.test( handleObj.namespace ) ) {2254 // Pass in a reference to the handler function itself2255 // So that we can later remove it2256 event.handler = handleObj.handler;2257 event.data = handleObj.data;2258 event.handleObj = handleObj;2259 2260 var ret = handleObj.handler.apply( this, args );2261 2262 if ( ret !== undefined ) {2263 event.result = ret;2264 if ( ret === false ) {2265 event.preventDefault();2266 event.stopPropagation();2267 }2268 }2269 2270 if ( event.isImmediatePropagationStopped() ) {2271 break;2272 }2273 }2274 }2275 }2276 2277 return event.result;2278 },2279 2280 props: "altKey attrChange attrName bubbles button cancelable charCode clientX clientY ctrlKey currentTarget data detail eventPhase fromElement handler keyCode layerX layerY metaKey newValue offsetX offsetY pageX pageY prevValue relatedNode relatedTarget screenX screenY shiftKey srcElement target toElement view wheelDelta which".split(" "),2281 2282 fix: function( event ) {2283 if ( event[ jQuery.expando ] ) {2284 return event;2285 }2286 2287 // store a copy of the original event object2288 // and "clone" to set read-only properties2289 var originalEvent = event;2290 event = jQuery.Event( originalEvent );2291 2292 for ( var i = this.props.length, prop; i; ) {2293 prop = this.props[ --i ];2294 event[ prop ] = originalEvent[ prop ];2295 }2296 2297 // Fix target property, if necessary2298 if ( !event.target ) {2299 // Fixes #1925 where srcElement might not be defined either2300 event.target = event.srcElement || document;2301 }2302 2303 // check if target is a textnode (safari)2304 if ( event.target.nodeType === 3 ) {2305 event.target = event.target.parentNode;2306 }2307 2308 // Add relatedTarget, if necessary2309 if ( !event.relatedTarget && event.fromElement ) {2310 event.relatedTarget = event.fromElement === event.target ? event.toElement : event.fromElement;2311 }2312 2313 // Calculate pageX/Y if missing and clientX/Y available2314 if ( event.pageX == null && event.clientX != null ) {2315 var doc = document.documentElement,2316 body = document.body;2317 2318 event.pageX = event.clientX + (doc && doc.scrollLeft || body && body.scrollLeft || 0) - (doc && doc.clientLeft || body && body.clientLeft || 0);2319 event.pageY = event.clientY + (doc && doc.scrollTop || body && body.scrollTop || 0) - (doc && doc.clientTop || body && body.clientTop || 0);2320 }2321 2322 // Add which for key events2323 if ( event.which == null && (event.charCode != null || event.keyCode != null) ) {2324 event.which = event.charCode != null ? event.charCode : event.keyCode;2325 }2326 2327 // Add metaKey to non-Mac browsers (use ctrl for PC's and Meta for Macs)2328 if ( !event.metaKey && event.ctrlKey ) {2329 event.metaKey = event.ctrlKey;2330 }2331 2332 // Add which for click: 1 === left; 2 === middle; 3 === right2333 // Note: button is not normalized, so don't use it2334 if ( !event.which && event.button !== undefined ) {2335 event.which = (event.button & 1 ? 1 : ( event.button & 2 ? 3 : ( event.button & 4 ? 2 : 0 ) ));2336 }2337 2338 return event;2339 },2340 2341 // Deprecated, use jQuery.guid instead2342 guid: 1E8,2343 2344 // Deprecated, use jQuery.proxy instead2345 proxy: jQuery.proxy,2346 2347 special: {2348 ready: {2349 // Make sure the ready event is setup2350 setup: jQuery.bindReady,2351 teardown: jQuery.noop2352 },2353 2354 live: {2355 add: function( handleObj ) {2356 jQuery.event.add( this,2357 liveConvert( handleObj.origType, handleObj.selector ),2358 jQuery.extend({}, handleObj, {handler: liveHandler, guid: handleObj.handler.guid}) ); 2359 },2360 2361 remove: function( handleObj ) {2362 jQuery.event.remove( this, liveConvert( handleObj.origType, handleObj.selector ), handleObj );2363 }2364 },2365 2366 beforeunload: {2367 setup: function( data, namespaces, eventHandle ) {2368 // We only want to do this special case on windows2369 if ( jQuery.isWindow( this ) ) {2370 this.onbeforeunload = eventHandle;2371 }2372 },2373 2374 teardown: function( namespaces, eventHandle ) {2375 if ( this.onbeforeunload === eventHandle ) {2376 this.onbeforeunload = null;2377 }2378 }2379 }2380 }2381 };2382 2383 jQuery.removeEvent = document.removeEventListener ?2384 function( elem, type, handle ) {2385 if ( elem.removeEventListener ) {2386 elem.removeEventListener( type, handle, false );2387 }2388 } : 2389 function( elem, type, handle ) {2390 if ( elem.detachEvent ) {2391 elem.detachEvent( "on" + type, handle );2392 }2393 };2394 2395 jQuery.Event = function( src ) {2396 // Allow instantiation without the 'new' keyword2397 if ( !this.preventDefault ) {2398 return new jQuery.Event( src );2399 }2400 2401 // Event object2402 if ( src && src.type ) {2403 this.originalEvent = src;2404 this.type = src.type;2405 // Event type2406 } else {2407 this.type = src;2408 }2409 2410 // timeStamp is buggy for some events on Firefox(#3843)2411 // So we won't rely on the native value2412 this.timeStamp = jQuery.now();2413 2414 // Mark it as fixed2415 this[ jQuery.expando ] = true;2416 };2417 2418 function returnFalse() {2419 return false;2420 }2421 function returnTrue() {2422 return true;2423 }2424 2425 // jQuery.Event is based on DOM3 Events as specified by the ECMAScript Language Binding2426 // http://www.w3.org/TR/2003/WD-DOM-Level-3-Events-20030331/ecma-script-binding.html2427 jQuery.Event.prototype = {2428 preventDefault: function() {2429 this.isDefaultPrevented = returnTrue;2430 2431 var e = this.originalEvent;2432 if ( !e ) {2433 return;2434 }2435 2436 // if preventDefault exists run it on the original event2437 if ( e.preventDefault ) {2438 e.preventDefault();2439 2440 // otherwise set the returnValue property of the original event to false (IE)2441 } else {2442 e.returnValue = false;2443 }2444 },2445 stopPropagation: function() {2446 this.isPropagationStopped = returnTrue;2447 2448 var e = this.originalEvent;2449 if ( !e ) {2450 return;2451 }2452 // if stopPropagation exists run it on the original event2453 if ( e.stopPropagation ) {2454 e.stopPropagation();2455 }2456 // otherwise set the cancelBubble property of the original event to true (IE)2457 e.cancelBubble = true;2458 },2459 stopImmediatePropagation: function() {2460 this.isImmediatePropagationStopped = returnTrue;2461 this.stopPropagation();2462 },2463 isDefaultPrevented: returnFalse,2464 isPropagationStopped: returnFalse,2465 isImmediatePropagationStopped: returnFalse2466 };2467 2468 // Checks if an event happened on an element within another element2469 // Used in jQuery.event.special.mouseenter and mouseleave handlers2470 var withinElement = function( event ) {2471 // Check if mouse(over|out) are still within the same parent element2472 var parent = event.relatedTarget;2473 2474 // Firefox sometimes assigns relatedTarget a XUL element2475 // which we cannot access the parentNode property of2476 try {2477 // Traverse up the tree2478 while ( parent && parent !== this ) {2479 parent = parent.parentNode;2480 }2481 2482 if ( parent !== this ) {2483 // set the correct event type2484 event.type = event.data;2485 2486 // handle event if we actually just moused on to a non sub-element2487 jQuery.event.handle.apply( this, arguments );2488 }2489 2490 // assuming we've left the element since we most likely mousedover a xul element2491 } catch(e) { }2492 },2493 2494 // In case of event delegation, we only need to rename the event.type,2495 // liveHandler will take care of the rest.2496 delegate = function( event ) {2497 event.type = event.data;2498 jQuery.event.handle.apply( this, arguments );2499 };2500 2501 // Create mouseenter and mouseleave events2502 jQuery.each({2503 mouseenter: "mouseover",2504 mouseleave: "mouseout"2505 }, function( orig, fix ) {2506 jQuery.event.special[ orig ] = {2507 setup: function( data ) {2508 jQuery.event.add( this, fix, data && data.selector ? delegate : withinElement, orig );2509 },2510 teardown: function( data ) {2511 jQuery.event.remove( this, fix, data && data.selector ? delegate : withinElement );2512 }2513 };2514 });2515 2516 // submit delegation2517 if ( !jQuery.support.submitBubbles ) {2518 2519 jQuery.event.special.submit = {2520 setup: function( data, namespaces ) {2521 if ( this.nodeName.toLowerCase() !== "form" ) {2522 jQuery.event.add(this, "click.specialSubmit", function( e ) {2523 var elem = e.target,2524 type = elem.type;2525 2526 if ( (type === "submit" || type === "image") && jQuery( elem ).closest("form").length ) {2527 e.liveFired = undefined;2528 return trigger( "submit", this, arguments );2529 }2530 });2531 2532 jQuery.event.add(this, "keypress.specialSubmit", function( e ) {2533 var elem = e.target,2534 type = elem.type;2535 2536 if ( (type === "text" || type === "password") && jQuery( elem ).closest("form").length && e.keyCode === 13 ) {2537 e.liveFired = undefined;2538 return trigger( "submit", this, arguments );2539 }2540 });2541 2542 } else {2543 return false;2544 }2545 },2546 2547 teardown: function( namespaces ) {2548 jQuery.event.remove( this, ".specialSubmit" );2549 }2550 };2551 2552 }2553 2554 // change delegation, happens here so we have bind.2555 if ( !jQuery.support.changeBubbles ) {2556 2557 var changeFilters,2558 2559 getVal = function( elem ) {2560 var type = elem.type, val = elem.value;2561 2562 if ( type === "radio" || type === "checkbox" ) {2563 val = elem.checked;2564 2565 } else if ( type === "select-multiple" ) {2566 val = elem.selectedIndex > -1 ?2567 jQuery.map( elem.options, function( elem ) {2568 return elem.selected;2569 }).join("-") :2570 "";2571 2572 } else if ( elem.nodeName.toLowerCase() === "select" ) {2573 val = elem.selectedIndex;2574 }2575 2576 return val;2577 },2578 2579 testChange = function testChange( e ) {2580 var elem = e.target, data, val;2581 2582 if ( !rformElems.test( elem.nodeName ) || elem.readOnly ) {2583 return;2584 }2585 2586 data = jQuery.data( elem, "_change_data" );2587 val = getVal(elem);2588 2589 // the current data will be also retrieved by beforeactivate2590 if ( e.type !== "focusout" || elem.type !== "radio" ) {2591 jQuery.data( elem, "_change_data", val );2592 }2593 2594 if ( data === undefined || val === data ) {2595 return;2596 }2597 2598 if ( data != null || val ) {2599 e.type = "change";2600 e.liveFired = undefined;2601 return jQuery.event.trigger( e, arguments[1], elem );2602 }2603 };2604 2605 jQuery.event.special.change = {2606 filters: {2607 focusout: testChange, 2608 2609 beforedeactivate: testChange,2610 2611 click: function( e ) {2612 var elem = e.target, type = elem.type;2613 2614 if ( type === "radio" || type === "checkbox" || elem.nodeName.toLowerCase() === "select" ) {2615 return testChange.call( this, e );2616 }2617 },2618 2619 // Change has to be called before submit2620 // Keydown will be called before keypress, which is used in submit-event delegation2621 keydown: function( e ) {2622 var elem = e.target, type = elem.type;2623 2624 if ( (e.keyCode === 13 && elem.nodeName.toLowerCase() !== "textarea") ||2625 (e.keyCode === 32 && (type === "checkbox" || type === "radio")) ||2626 type === "select-multiple" ) {2627 return testChange.call( this, e );2628 }2629 },2630 2631 // Beforeactivate happens also before the previous element is blurred2632 // with this event you can't trigger a change event, but you can store2633 // information2634 beforeactivate: function( e ) {2635 var elem = e.target;2636 jQuery.data( elem, "_change_data", getVal(elem) );2637 }2638 },2639 2640 setup: function( data, namespaces ) {2641 if ( this.type === "file" ) {2642 return false;2643 }2644 2645 for ( var type in changeFilters ) {2646 jQuery.event.add( this, type + ".specialChange", changeFilters[type] );2647 }2648 2649 return rformElems.test( this.nodeName );2650 },2651 2652 teardown: function( namespaces ) {2653 jQuery.event.remove( this, ".specialChange" );2654 2655 return rformElems.test( this.nodeName );2656 }2657 };2658 2659 changeFilters = jQuery.event.special.change.filters;2660 2661 // Handle when the input is .focus()'d2662 changeFilters.focus = changeFilters.beforeactivate;2663 }2664 2665 function trigger( type, elem, args ) {2666 args[0].type = type;2667 return jQuery.event.handle.apply( elem, args );2668 }2669 2670 // Create "bubbling" focus and blur events2671 if ( document.addEventListener ) {2672 jQuery.each({ focus: "focusin", blur: "focusout" }, function( orig, fix ) {2673 jQuery.event.special[ fix ] = {2674 setup: function() {2675 if ( focusCounts[fix]++ === 0 ) {2676 document.addEventListener( orig, handler, true );2677 }2678 }, 2679 teardown: function() { 2680 if ( --focusCounts[fix] === 0 ) {2681 document.removeEventListener( orig, handler, true );2682 }2683 }2684 };2685 2686 function handler( e ) { 2687 e = jQuery.event.fix( e );2688 e.type = fix;2689 return jQuery.event.trigger( e, null, e.target );2690 }2691 });2692 }2693 2694 jQuery.each(["bind", "one"], function( i, name ) {2695 jQuery.fn[ name ] = function( type, data, fn ) {2696 // Handle object literals2697 if ( typeof type === "object" ) {2698 for ( var key in type ) {2699 this[ name ](key, data, type[key], fn);2700 }2701 return this;2702 }2703 2704 if ( jQuery.isFunction( data ) || data === false ) {2705 fn = data;2706 data = undefined;2707 }2708 2709 var handler = name === "one" ? jQuery.proxy( fn, function( event ) {2710 jQuery( this ).unbind( event, handler );2711 return fn.apply( this, arguments );2712 }) : fn;2713 2714 if ( type === "unload" && name !== "one" ) {2715 this.one( type, data, fn );2716 2717 } else {2718 for ( var i = 0, l = this.length; i < l; i++ ) {2719 jQuery.event.add( this[i], type, handler, data );2720 }2721 }2722 2723 return this;2724 };2725 });2726 2727 jQuery.fn.extend({2728 unbind: function( type, fn ) {2729 // Handle object literals2730 if ( typeof type === "object" && !type.preventDefault ) {2731 for ( var key in type ) {2732 this.unbind(key, type[key]);2733 }2734 2735 } else {2736 for ( var i = 0, l = this.length; i < l; i++ ) {2737 jQuery.event.remove( this[i], type, fn );2738 }2739 }2740 2741 return this;2742 },2743 2744 delegate: function( selector, types, data, fn ) {2745 return this.live( types, data, fn, selector );2746 },2747 2748 undelegate: function( selector, types, fn ) {2749 if ( arguments.length === 0 ) {2750 return this.unbind( "live" );2751 2752 } else {2753 return this.die( types, null, fn, selector );2754 }2755 },2756 2757 trigger: function( type, data ) {2758 return this.each(function() {2759 jQuery.event.trigger( type, data, this );2760 });2761 },2762 2763 triggerHandler: function( type, data ) {2764 if ( this[0] ) {2765 var event = jQuery.Event( type );2766 event.preventDefault();2767 event.stopPropagation();2768 jQuery.event.trigger( event, data, this[0] );2769 return event.result;2770 }2771 },2772 2773 toggle: function( fn ) {2774 // Save reference to arguments for access in closure2775 var args = arguments,2776 i = 1;2777 2778 // link all the functions, so any of them can unbind this click handler2779 while ( i < args.length ) {2780 jQuery.proxy( fn, args[ i++ ] );2781 }2782 2783 return this.click( jQuery.proxy( fn, function( event ) {2784 // Figure out which function to execute2785 var lastToggle = ( jQuery.data( this, "lastToggle" + fn.guid ) || 0 ) % i;2786 jQuery.data( this, "lastToggle" + fn.guid, lastToggle + 1 );2787 2788 // Make sure that clicks stop2789 event.preventDefault();2790 2791 // and execute the function2792 return args[ lastToggle ].apply( this, arguments ) || false;2793 }));2794 },2795 2796 hover: function( fnOver, fnOut ) {2797 return this.mouseenter( fnOver ).mouseleave( fnOut || fnOver );2798 }2799 });2800 2801 var liveMap = {2802 focus: "focusin",2803 blur: "focusout",2804 mouseenter: "mouseover",2805 mouseleave: "mouseout"2806 };2807 2808 jQuery.each(["live", "die"], function( i, name ) {2809 jQuery.fn[ name ] = function( types, data, fn, origSelector /* Internal Use Only */ ) {2810 var type, i = 0, match, namespaces, preType,2811 selector = origSelector || this.selector,2812 context = origSelector ? this : jQuery( this.context );2813 2814 if ( typeof types === "object" && !types.preventDefault ) {2815 for ( var key in types ) {2816 context[ name ]( key, data, types[key], selector );2817 }2818 2819 return this;2820 }2821 2822 if ( jQuery.isFunction( data ) ) {2823 fn = data;2824 data = undefined;2825 }2826 2827 types = (types || "").split(" ");2828 2829 while ( (type = types[ i++ ]) != null ) {2830 match = rnamespaces.exec( type );2831 namespaces = "";2832 2833 if ( match ) {2834 namespaces = match[0];2835 type = type.replace( rnamespaces, "" );2836 }2837 2838 if ( type === "hover" ) {2839 types.push( "mouseenter" + namespaces, "mouseleave" + namespaces );2840 continue;2841 }2842 2843 preType = type;2844 2845 if ( type === "focus" || type === "blur" ) {2846 types.push( liveMap[ type ] + namespaces );2847 type = type + namespaces;2848 2849 } else {2850 type = (liveMap[ type ] || type) + namespaces;2851 }2852 2853 if ( name === "live" ) {2854 // bind live handler2855 for ( var j = 0, l = context.length; j < l; j++ ) {2856 jQuery.event.add( context[j], "live." + liveConvert( type, selector ),2857 { data: data, selector: selector, handler: fn, origType: type, origHandler: fn, preType: preType } );2858 }2859 2860 } else {2861 // unbind live handler2862 context.unbind( "live." + liveConvert( type, selector ), fn );2863 }2864 }2865 2866 return this;2867 };2868 });2869 2870 function liveHandler( event ) {2871 var stop, maxLevel, related, match, handleObj, elem, j, i, l, data, close, namespace, ret,2872 elems = [],2873 selectors = [],2874 events = jQuery.data( this, this.nodeType ? "events" : "__events__" );2875 2876 if ( typeof events === "function" ) {2877 events = events.events;2878 }2879 2880 // Make sure we avoid non-left-click bubbling in Firefox (#3861)2881 if ( event.liveFired === this || !events || !events.live || event.button && event.type === "click" ) {2882 return;2883 }2884 2885 if ( event.namespace ) {2886 namespace = new RegExp("(^|//.)" + event.namespace.split(".").join("//.(?:.*//.)?") + "(//.|$)");2887 }2888 2889 event.liveFired = this;2890 2891 var live = events.live.slice(0);2892 2893 for ( j = 0; j < live.length; j++ ) {2894 handleObj = live[j];2895 2896 if ( handleObj.origType.replace( rnamespaces, "" ) === event.type ) {2897 selectors.push( handleObj.selector );2898 2899 } else {2900 live.splice( j--, 1 );2901 }2902 }2903 2904 match = jQuery( event.target ).closest( selectors, event.currentTarget );2905 2906 for ( i = 0, l = match.length; i < l; i++ ) {2907 close = match[i];2908 2909 for ( j = 0; j < live.length; j++ ) {2910 handleObj = live[j];2911 2912 if ( close.selector === handleObj.selector && (!namespace || namespace.test( handleObj.namespace )) ) {2913 elem = close.elem;2914 related = null;2915 2916 // Those two events require additional checking2917 if ( handleObj.preType === "mouseenter" || handleObj.preType === "mouseleave" ) {2918 event.type = handleObj.preType;2919 related = jQuery( event.relatedTarget ).closest( handleObj.selector )[0];2920 }2921 2922 if ( !related || related !== elem ) {2923 elems.push({ elem: elem, handleObj: handleObj, level: close.level });2924 }2925 }2926 }2927 }2928 2929 for ( i = 0, l = elems.length; i < l; i++ ) {2930 match = elems[i];2931 2932 if ( maxLevel && match.level > maxLevel ) {2933 break;2934 }2935 2936 event.currentTarget = match.elem;2937 event.data = match.handleObj.data;2938 event.handleObj = match.handleObj;2939 2940 ret = match.handleObj.origHandler.apply( match.elem, arguments );2941 2942 if ( ret === false || event.isPropagationStopped() ) {2943 maxLevel = match.level;2944 2945 if ( ret === false ) {2946 stop = false;2947 }2948 if ( event.isImmediatePropagationStopped() ) {2949 break;2950 }2951 }2952 }2953 2954 return stop;2955 }2956 2957 function liveConvert( type, selector ) {2958 return (type && type !== "*" ? type + "." : "") + selector.replace(rperiod, "`").replace(rspace, "&");2959 }2960 2961 jQuery.each( ("blur focus focusin focusout load resize scroll unload click dblclick " +2962 "mousedown mouseup mousemove mouseover mouseout mouseenter mouseleave " +2963 "change select submit keydown keypress keyup error").split(" "), function( i, name ) {2964 2965 // Handle event binding2966 jQuery.fn[ name ] = function( data, fn ) {2967 if ( fn == null ) {2968 fn = data;2969 data = null;2970 }2971 2972 return arguments.length > 0 ?2973 this.bind( name, data, fn ) :2974 this.trigger( name );2975 };2976 2977 if ( jQuery.attrFn ) {2978 jQuery.attrFn[ name ] = true;2979 }2980 });2981 2982 // Prevent memory leaks in IE2983 // Window isn't included so as not to unbind existing unload events2984 // More info:2985 // - http://isaacschlueter.com/2006/10/msie-memory-leaks/2986 if ( window.attachEvent && !window.addEventListener ) {2987 jQuery(window).bind("unload", function() {2988 for ( var id in jQuery.cache ) {2989 if ( jQuery.cache[ id ].handle ) {2990 // Try/Catch is to handle iframes being unloaded, see #42802991 try {2992 jQuery.event.remove( jQuery.cache[ id ].handle.elem );2993 } catch(e) {}2994 }2995 }2996 });2997 }2998 2999 3000 /*!3001 * Sizzle CSS Selector Engine - v1.03002 * Copyright 2009, The Dojo Foundation3003 * Released under the MIT, BSD, and GPL Licenses.3004 * More information: http://sizzlejs.com/3005 */3006 (function(){3007 3008 var chunker = /((?:/((?:/([^()]+/)|[^()]+)+/)|/[(?:/[[^/[/]]*/]|['"][^'"]*['"]|[^/[/]'"]+)+/]|//.|[^ >+~,(/[//]+)+|[>+~])(/s*,/s*)?((?:.|/r|/n)*)/g,3009 done = 0,3010 toString = Object.prototype.toString,3011 hasDuplicate = false,3012 baseHasDuplicate = true;3013 3014 // Here we check if the JavaScript engine is using some sort of3015 // optimization where it does not always call our comparision3016 // function. If that is the case, discard the hasDuplicate value.3017 // Thus far that includes Google Chrome.3018 [0, 0].sort(function() {3019 baseHasDuplicate = false;3020 return 0;3021 });3022 3023 var Sizzle = function( selector, context, results, seed ) {3024 results = results || [];3025 context = context || document;3026 3027 var origContext = context;3028 3029 if ( context.nodeType !== 1 && context.nodeType !== 9 ) {3030 return [];3031 }3032 3033 if ( !selector || typeof selector !== "string" ) {3034 return results;3035 }3036 3037 var m, set, checkSet, extra, ret, cur, pop, i,3038 prune = true,3039 contextXML = Sizzle.isXML( context ),3040 parts = [],3041 soFar = selector;3042 3043 // Reset the position of the chunker regexp (start from head)3044 do {3045 chunker.exec( "" );3046 m = chunker.exec( soFar );3047 3048 if ( m ) {3049 soFar = m[3];3050 3051 parts.push( m[1] );3052 3053 if ( m[2] ) {3054 extra = m[3];3055 break;3056 }3057 }3058 } while ( m );3059 3060 if ( parts.length > 1 && origPOS.exec( selector ) ) {3061 3062 if ( parts.length === 2 && Expr.relative[ parts[0] ] ) {3063 set = posProcess( parts[0] + parts[1], context );3064 3065 } else {3066 set = Expr.relative[ parts[0] ] ?3067 [ context ] :3068 Sizzle( parts.shift(), context );3069 3070 while ( parts.length ) {3071 selector = parts.shift();3072 3073 if ( Expr.relative[ selector ] ) {3074 selector += parts.shift();3075 }3076 3077 set = posProcess( selector, set );3078 }3079 }3080 3081 } else {3082 // Take a shortcut and set the context if the root selector is an ID3083 // (but not if it'll be faster if the inner selector is an ID)3084 if ( !seed && parts.length > 1 && context.nodeType === 9 && !contextXML &&3085 Expr.match.ID.test(parts[0]) && !Expr.match.ID.test(parts[parts.length - 1]) ) {3086 3087 ret = Sizzle.find( parts.shift(), context, contextXML );3088 context = ret.expr ?3089 Sizzle.filter( ret.expr, ret.set )[0] :3090 ret.set[0];3091 }3092 3093 if ( context ) {3094 ret = seed ?3095 { expr: parts.pop(), set: makeArray(seed) } :3096 Sizzle.find( parts.pop(), parts.length === 1 && (parts[0] === "~" || parts[0] === "+") && context.parentNode ? context.parentNode : context, contextXML );3097 3098 set = ret.expr ?3099 Sizzle.filter( ret.expr, ret.set ) :3100 ret.set;3101 3102 if ( parts.length > 0 ) {3103 checkSet = makeArray( set );3104 3105 } else {3106 prune = false;3107 }3108 3109 while ( parts.length ) {3110 cur = parts.pop();3111 pop = cur;3112 3113 if ( !Expr.relative[ cur ] ) {3114 cur = "";3115 } else {3116 pop = parts.pop();3117 }3118 3119 if ( pop == null ) {3120 pop = context;3121 }3122 3123 Expr.relative[ cur ]( checkSet, pop, contextXML );3124 }3125 3126 } else {3127 checkSet = parts = [];3128 }3129 }3130 3131 if ( !checkSet ) {3132 checkSet = set;3133 }3134 3135 if ( !checkSet ) {3136 Sizzle.error( cur || selector );3137 }3138 3139 if ( toString.call(checkSet) === "[object Array]" ) {3140 if ( !prune ) {3141 results.push.apply( results, checkSet );3142 3143 } else if ( context && context.nodeType === 1 ) {3144 for ( i = 0; checkSet[i] != null; i++ ) {3145 if ( checkSet[i] && (checkSet[i] === true || checkSet[i].nodeType === 1 && Sizzle.contains(context, checkSet[i])) ) {3146 results.push( set[i] );3147 }3148 }3149 3150 } else {3151 for ( i = 0; checkSet[i] != null; i++ ) {3152 if ( checkSet[i] && checkSet[i].nodeType === 1 ) {3153 results.push( set[i] );3154 }3155 }3156 }3157 3158 } else {3159 makeArray( checkSet, results );3160 }3161 3162 if ( extra ) {3163 Sizzle( extra, origContext, results, seed );3164 Sizzle.uniqueSort( results );3165 }3166 3167 return results;3168 };3169 3170 Sizzle.uniqueSort = function( results ) {3171 if ( sortOrder ) {3172 hasDuplicate = baseHasDuplicate;3173 results.sort( sortOrder );3174 3175 if ( hasDuplicate ) {3176 for ( var i = 1; i < results.length; i++ ) {3177 if ( results[i] === results[ i - 1 ] ) {3178 results.splice( i--, 1 );3179 }3180 }3181 }3182 }3183 3184 return results;3185 };3186 3187 Sizzle.matches = function( expr, set ) {3188 return Sizzle( expr, null, null, set );3189 };3190 3191 Sizzle.matchesSelector = function( node, expr ) {3192 return Sizzle( expr, null, null, [node] ).length > 0;3193 };3194 3195 Sizzle.find = function( expr, context, isXML ) {3196 var set;3197 3198 if ( !expr ) {3199 return [];3200 }3201 3202 for ( var i = 0, l = Expr.order.length; i < l; i++ ) {3203 var match,3204 type = Expr.order[i];3205 3206 if ( (match = Expr.leftMatch[ type ].exec( expr )) ) {3207 var left = match[1];3208 match.splice( 1, 1 );3209 3210 if ( left.substr( left.length - 1 ) !== "//" ) {3211 match[1] = (match[1] || "").replace(////g, "");3212 set = Expr.find[ type ]( match, context, isXML );3213 3214 if ( set != null ) {3215 expr = expr.replace( Expr.match[ type ], "" );3216 break;3217 }3218 }3219 }3220 }3221 3222 if ( !set ) {3223 set = context.getElementsByTagName( "*" );3224 }3225 3226 return { set: set, expr: expr };3227 };3228 3229 Sizzle.filter = function( expr, set, inplace, not ) {3230 var match, anyFound,3231 old = expr,3232 result = [],3233 curLoop = set,3234 isXMLFilter = set && set[0] && Sizzle.isXML( set[0] );3235 3236 while ( expr && set.length ) {3237 for ( var type in Expr.filter ) {3238 if ( (match = Expr.leftMatch[ type ].exec( expr )) != null && match[2] ) {3239 var found, item,3240 filter = Expr.filter[ type ],3241 left = match[1];3242 3243 anyFound = false;3244 3245 match.splice(1,1);3246 3247 if ( left.substr( left.length - 1 ) === "//" ) {3248 continue;3249 }3250 3251 if ( curLoop === result ) {3252 result = [];3253 }3254 3255 if ( Expr.preFilter[ type ] ) {3256 match = Expr.preFilter[ type ]( match, curLoop, inplace, result, not, isXMLFilter );3257 3258 if ( !match ) {3259 anyFound = found = true;3260 3261 } else if ( match === true ) {3262 continue;3263 }3264 }3265 3266 if ( match ) {3267 for ( var i = 0; (item = curLoop[i]) != null; i++ ) {3268 if ( item ) {3269 found = filter( item, match, i, curLoop );3270 var pass = not ^ !!found;3271 3272 if ( inplace && found != null ) {3273 if ( pass ) {3274 anyFound = true;3275 3276 } else {3277 curLoop[i] = false;3278 }3279 3280 } else if ( pass ) {3281 result.push( item );3282 anyFound = true;3283 }3284 }3285 }3286 }3287 3288 if ( found !== undefined ) {3289 if ( !inplace ) {3290 curLoop = result;3291 }3292 3293 expr = expr.replace( Expr.match[ type ], "" );3294 3295 if ( !anyFound ) {3296 return [];3297 }3298 3299 break;3300 }3301 }3302 }3303 3304 // Improper expression3305 if ( expr === old ) {3306 if ( anyFound == null ) {3307 Sizzle.error( expr );3308 3309 } else {3310 break;3311 }3312 }3313 3314 old = expr;3315 }3316 3317 return curLoop;3318 };3319 3320 Sizzle.error = function( msg ) {3321 throw "Syntax error, unrecognized expression: " + msg;3322 };3323 3324 var Expr = Sizzle.selectors = {3325 order: [ "ID", "NAME", "TAG" ],3326 3327 match: {3328 ID: /#((?:[/w/u00c0-/uFFFF/-]|//.)+)/,3329 CLASS: //.((?:[/w/u00c0-/uFFFF/-]|//.)+)/,3330 NAME: //[name=['"]*((?:[/w/u00c0-/uFFFF/-]|//.)+)['"]*/]/,3331 ATTR: //[/s*((?:[/w/u00c0-/uFFFF/-]|//.)+)/s*(?:(/S?=)/s*(['"]*)(.*?)/3|)/s*/]/,3332 TAG: /^((?:[/w/u00c0-/uFFFF/*/-]|//.)+)/,3333 CHILD: /:(only|nth|last|first)-child(?:/((even|odd|[/dn+/-]*)/))?/,3334 POS: /:(nth|eq|gt|lt|first|last|even|odd)(?:/((/d*)/))?(?=[^/-]|$)/,3335 PSEUDO: /:((?:[/w/u00c0-/uFFFF/-]|//.)+)(?:/((['"]?)((?:/([^/)]+/)|[^/(/)]*)+)/2/))?/3336 },3337 3338 leftMatch: {},3339 3340 attrMap: {3341 "class": "className",3342 "for": "htmlFor"3343 },3344 3345 attrHandle: {3346 href: function( elem ) {3347 return elem.getAttribute( "href" );3348 }3349 },3350 3351 relative: {3352 "+": function(checkSet, part){3353 var isPartStr = typeof part === "string",3354 isTag = isPartStr && !//W/.test( part ),3355 isPartStrNotTag = isPartStr && !isTag;3356 3357 if ( isTag ) {3358 part = part.toLowerCase();3359 }3360 3361 for ( var i = 0, l = checkSet.length, elem; i < l; i++ ) {3362 if ( (elem = checkSet[i]) ) {3363 while ( (elem = elem.previousSibling) && elem.nodeType !== 1 ) {}3364 3365 checkSet[i] = isPartStrNotTag || elem && elem.nodeName.toLowerCase() === part ?3366 elem || false :3367 elem === part;3368 }3369 }3370 3371 if ( isPartStrNotTag ) {3372 Sizzle.filter( part, checkSet, true );3373 }3374 },3375 3376 ">": function( checkSet, part ) {3377 var elem,3378 isPartStr = typeof part === "string",3379 i = 0,3380 l = checkSet.length;3381 3382 if ( isPartStr && !//W/.test( part ) ) {3383 part = part.toLowerCase();3384 3385 for ( ; i < l; i++ ) {3386 elem = checkSet[i];3387 3388 if ( elem ) {3389 var parent = elem.parentNode;3390 checkSet[i] = parent.nodeName.toLowerCase() === part ? parent : false;3391 }3392 }3393 3394 } else {3395 for ( ; i < l; i++ ) {3396 elem = checkSet[i];3397 3398 if ( elem ) {3399 checkSet[i] = isPartStr ?3400 elem.parentNode :3401 elem.parentNode === part;3402 }3403 }3404 3405 if ( isPartStr ) {3406 Sizzle.filter( part, checkSet, true );3407 }3408 }3409 },3410 3411 "": function(checkSet, part, isXML){3412 var nodeCheck,3413 doneName = done++,3414 checkFn = dirCheck;3415 3416 if ( typeof part === "string" && !//W/.test(part) ) {3417 part = part.toLowerCase();3418 nodeCheck = part;3419 checkFn = dirNodeCheck;3420 }3421 3422 checkFn( "parentNode", part, doneName, checkSet, nodeCheck, isXML );3423 },3424 3425 "~": function( checkSet, part, isXML ) {3426 var nodeCheck,3427 doneName = done++,3428 checkFn = dirCheck;3429 3430 if ( typeof part === "string" && !//W/.test( part ) ) {3431 part = part.toLowerCase();3432 nodeCheck = part;3433 checkFn = dirNodeCheck;3434 }3435 3436 checkFn( "previousSibling", part, doneName, checkSet, nodeCheck, isXML );3437 }3438 },3439 3440 find: {3441 ID: function( match, context, isXML ) {3442 if ( typeof context.getElementById !== "undefined" && !isXML ) {3443 var m = context.getElementById(match[1]);3444 // Check parentNode to catch when Blackberry 4.6 returns3445 // nodes that are no longer in the document #69633446 return m && m.parentNode ? [m] : [];3447 }3448 },3449 3450 NAME: function( match, context ) {3451 if ( typeof context.getElementsByName !== "undefined" ) {3452 var ret = [],3453 results = context.getElementsByName( match[1] );3454 3455 for ( var i = 0, l = results.length; i < l; i++ ) {3456 if ( results[i].getAttribute("name") === match[1] ) {3457 ret.push( results[i] );3458 }3459 }3460 3461 return ret.length === 0 ? null : ret;3462 }3463 },3464 3465 TAG: function( match, context ) {3466 return context.getElementsByTagName( match[1] );3467 }3468 },3469 preFilter: {3470 CLASS: function( match, curLoop, inplace, result, not, isXML ) {3471 match = " " + match[1].replace(////g, "") + " ";3472 3473 if ( isXML ) {3474 return match;3475 }3476 3477 for ( var i = 0, elem; (elem = curLoop[i]) != null; i++ ) {3478 if ( elem ) {3479 if ( not ^ (elem.className && (" " + elem.className + " ").replace(/[/t/n]/g, " ").indexOf(match) >= 0) ) {3480 if ( !inplace ) {3481 result.push( elem );3482 }3483 3484 } else if ( inplace ) {3485 curLoop[i] = false;3486 }3487 }3488 }3489 3490 return false;3491 },3492 3493 ID: function( match ) {3494 return match[1].replace(////g, "");3495 },3496 3497 TAG: function( match, curLoop ) {3498 return match[1].toLowerCase();3499 },3500 3501 CHILD: function( match ) {3502 if ( match[1] === "nth" ) {3503 // parse equations like 'even', 'odd', '5', '2n', '3n+2', '4n-1', '-n+6'3504 var test = /(-?)(/d*)n((?:/+|-)?/d*)/.exec(3505 match[2] === "even" && "2n" || match[2] === "odd" && "2n+1" ||3506 !//D/.test( match[2] ) && "0n+" + match[2] || match[2]);3507 3508 // calculate the numbers (first)n+(last) including if they are negative3509 match[2] = (test[1] + (test[2] || 1)) - 0;3510 match[3] = test[3] - 0;3511 }3512 3513 // TODO: Move to normal caching system3514 match[0] = done++;3515 3516 return match;3517 },3518 3519 ATTR: function( match, curLoop, inplace, result, not, isXML ) {3520 var name = match[1].replace(////g, "");3521 3522 if ( !isXML && Expr.attrMap[name] ) {3523 match[1] = Expr.attrMap[name];3524 }3525 3526 if ( match[2] === "~=" ) {3527 match[4] = " " + match[4] + " ";3528 }3529 3530 return match;3531 },3532 3533 PSEUDO: function( match, curLoop, inplace, result, not ) {3534 if ( match[1] === "not" ) {3535 // If we're dealing with a complex expression, or a simple one3536 if ( ( chunker.exec(match[3]) || "" ).length > 1 || /^/w/.test(match[3]) ) {3537 match[3] = Sizzle(match[3], null, null, curLoop);3538 3539 } else {3540 var ret = Sizzle.filter(match[3], curLoop, inplace, true ^ not);3541 3542 if ( !inplace ) {3543 result.push.apply( result, ret );3544 }3545 3546 return false;3547 }3548 3549 } else if ( Expr.match.POS.test( match[0] ) || Expr.match.CHILD.test( match[0] ) ) {3550 return true;3551 }3552 3553 return match;3554 },3555 3556 POS: function( match ) {3557 match.unshift( true );3558 3559 return match;3560 }3561 },3562 3563 filters: {3564 enabled: function( elem ) {3565 return elem.disabled === false && elem.type !== "hidden";3566 },3567 3568 disabled: function( elem ) {3569 return elem.disabled === true;3570 },3571 3572 checked: function( elem ) {3573 return elem.checked === true;3574 },3575 3576 selected: function( elem ) {3577 // Accessing this property makes selected-by-default3578 // options in Safari work properly3579 elem.parentNode.selectedIndex;3580 3581 return elem.selected === true;3582 },3583 3584 parent: function( elem ) {3585 return !!elem.firstChild;3586 },3587 3588 empty: function( elem ) {3589 return !elem.firstChild;3590 },3591 3592 has: function( elem, i, match ) {3593 return !!Sizzle( match[3], elem ).length;3594 },3595 3596 header: function( elem ) {3597 return (/h/d/i).test( elem.nodeName );3598 },3599 3600 text: function( elem ) {3601 return "text" === elem.type;3602 },3603 radio: function( elem ) {3604 return "radio" === elem.type;3605 },3606 3607 checkbox: function( elem ) {3608 return "checkbox" === elem.type;3609 },3610 3611 file: function( elem ) {3612 return "file" === elem.type;3613 },3614 password: function( elem ) {3615 return "password" === elem.type;3616 },3617 3618 submit: function( elem ) {3619 return "submit" === elem.type;3620 },3621 3622 image: function( elem ) {3623 return "image" === elem.type;3624 },3625 3626 reset: function( elem ) {3627 return "reset" === elem.type;3628 },3629 3630 button: function( elem ) {3631 return "button" === elem.type || elem.nodeName.toLowerCase() === "button";3632 },3633 3634 input: function( elem ) {3635 return (/input|select|textarea|button/i).test( elem.nodeName );3636 }3637 },3638 setFilters: {3639 first: function( elem, i ) {3640 return i === 0;3641 },3642 3643 last: function( elem, i, match, array ) {3644 return i === array.length - 1;3645 },3646 3647 even: function( elem, i ) {3648 return i % 2 === 0;3649 },3650 3651 odd: function( elem, i ) {3652 return i % 2 === 1;3653 },3654 3655 lt: function( elem, i, match ) {3656 return i < match[3] - 0;3657 },3658 3659 gt: function( elem, i, match ) {3660 return i > match[3] - 0;3661 },3662 3663 nth: function( elem, i, match ) {3664 return match[3] - 0 === i;3665 },3666 3667 eq: function( elem, i, match ) {3668 return match[3] - 0 === i;3669 }3670 },3671 filter: {3672 PSEUDO: function( elem, match, i, array ) {3673 var name = match[1],3674 filter = Expr.filters[ name ];3675 3676 if ( filter ) {3677 return filter( elem, i, match, array );3678 3679 } else if ( name === "contains" ) {3680 return (elem.textContent || elem.innerText || Sizzle.getText([ elem ]) || "").indexOf(match[3]) >= 0;3681 3682 } else if ( name === "not" ) {3683 var not = match[3];3684 3685 for ( var j = 0, l = not.length; j < l; j++ ) {3686 if ( not[j] === elem ) {3687 return false;3688 }3689 }3690 3691 return true;3692 3693 } else {3694 Sizzle.error( "Syntax error, unrecognized expression: " + name );3695 }3696 },3697 3698 CHILD: function( elem, match ) {3699 var type = match[1],3700 node = elem;3701 3702 switch ( type ) {3703 case "only":3704 case "first":3705 while ( (node = node.previousSibling) ) {3706 if ( node.nodeType === 1 ) { 3707 return false; 3708 }3709 }3710 3711 if ( type === "first" ) { 3712 return true; 3713 }3714 3715 node = elem;3716 3717 case "last":3718 while ( (node = node.nextSibling) ) {3719 if ( node.nodeType === 1 ) { 3720 return false; 3721 }3722 }3723 3724 return true;3725 3726 case "nth":3727 var first = match[2],3728 last = match[3];3729 3730 if ( first === 1 && last === 0 ) {3731 return true;3732 }3733 3734 var doneName = match[0],3735 parent = elem.parentNode;3736 3737 if ( parent && (parent.sizcache !== doneName || !elem.nodeIndex) ) {3738 var count = 0;3739 3740 for ( node = parent.firstChild; node; node = node.nextSibling ) {3741 if ( node.nodeType === 1 ) {3742 node.nodeIndex = ++count;3743 }3744 } 3745 3746 parent.sizcache = doneName;3747 }3748 3749 var diff = elem.nodeIndex - last;3750 3751 if ( first === 0 ) {3752 return diff === 0;3753 3754 } else {3755 return ( diff % first === 0 && diff / first >= 0 );3756 }3757 }3758 },3759 3760 ID: function( elem, match ) {3761 return elem.nodeType === 1 && elem.getAttribute("id") === match;3762 },3763 3764 TAG: function( elem, match ) {3765 return (match === "*" && elem.nodeType === 1) || elem.nodeName.toLowerCase() === match;3766 },3767 3768 CLASS: function( elem, match ) {3769 return (" " + (elem.className || elem.getAttribute("class")) + " ")3770 .indexOf( match ) > -1;3771 },3772 3773 ATTR: function( elem, match ) {3774 var name = match[1],3775 result = Expr.attrHandle[ name ] ?3776 Expr.attrHandle[ name ]( elem ) :3777 elem[ name ] != null ?3778 elem[ name ] :3779 elem.getAttribute( name ),3780 value = result + "",3781 type = match[2],3782 check = match[4];3783 3784 return result == null ?3785 type === "!=" :3786 type === "=" ?3787 value === check :3788 type === "*=" ?3789 value.indexOf(check) >= 0 :3790 type === "~=" ?3791 (" " + value + " ").indexOf(check) >= 0 :3792 !check ?3793 value && result !== false :3794 type === "!=" ?3795 value !== check :3796 type === "^=" ?3797 value.indexOf(check) === 0 :3798 type === "$=" ?3799 value.substr(value.length - check.length) === check :3800 type === "|=" ?3801 value === check || value.substr(0, check.length + 1) === check + "-" :3802 false;3803 },3804 3805 POS: function( elem, match, i, array ) {3806 var name = match[2],3807 filter = Expr.setFilters[ name ];3808 3809 if ( filter ) {3810 return filter( elem, i, match, array );3811 }3812 }3813 }3814 };3815 3816 var origPOS = Expr.match.POS,3817 fescape = function(all, num){3818 return "//" + (num - 0 + 1);3819 };3820 3821 for ( var type in Expr.match ) {3822 Expr.match[ type ] = new RegExp( Expr.match[ type ].source + (/(?![^/[]*/])(?![^/(]*/))/.source) );3823 Expr.leftMatch[ type ] = new RegExp( /(^(?:.|/r|/n)*?)/.source + Expr.match[ type ].source.replace(///(/d+)/g, fescape) );3824 }3825 3826 var makeArray = function( array, results ) {3827 array = Array.prototype.slice.call( array, 0 );3828 3829 if ( results ) {3830 results.push.apply( results, array );3831 return results;3832 }3833 3834 return array;3835 };3836 3837 // Perform a simple check to determine if the browser is capable of3838 // converting a NodeList to an array using builtin methods.3839 // Also verifies that the returned array holds DOM nodes3840 // (which is not the case in the Blackberry browser)3841 try {3842 Array.prototype.slice.call( document.documentElement.childNodes, 0 )[0].nodeType;3843 3844 // Provide a fallback method if it does not work3845 } catch( e ) {3846 makeArray = function( array, results ) {3847 var i = 0,3848 ret = results || [];3849 3850 if ( toString.call(array) === "[object Array]" ) {3851 Array.prototype.push.apply( ret, array );3852 3853 } else {3854 if ( typeof array.length === "number" ) {3855 for ( var l = array.length; i < l; i++ ) {3856 ret.push( array[i] );3857 }3858 3859 } else {3860 for ( ; array[i]; i++ ) {3861 ret.push( array[i] );3862 }3863 }3864 }3865 3866 return ret;3867 };3868 }3869 3870 var sortOrder, siblingCheck;3871 3872 if ( document.documentElement.compareDocumentPosition ) {3873 sortOrder = function( a, b ) {3874 if ( a === b ) {3875 hasDuplicate = true;3876 return 0;3877 }3878 3879 if ( !a.compareDocumentPosition || !b.compareDocumentPosition ) {3880 return a.compareDocumentPosition ? -1 : 1;3881 }3882 3883 return a.compareDocumentPosition(b) & 4 ? -1 : 1;3884 };3885 3886 } else {3887 sortOrder = function( a, b ) {3888 var al, bl,3889 ap = [],3890 bp = [],3891 aup = a.parentNode,3892 bup = b.parentNode,3893 cur = aup;3894 3895 // The nodes are identical, we can exit early3896 if ( a === b ) {3897 hasDuplicate = true;3898 return 0;3899 3900 // If the nodes are siblings (or identical) we can do a quick check3901 } else if ( aup === bup ) {3902 return siblingCheck( a, b );3903 3904 // If no parents were found then the nodes are disconnected3905 } else if ( !aup ) {3906 return -1;3907 3908 } else if ( !bup ) {3909 return 1;3910 }3911 3912 // Otherwise they're somewhere else in the tree so we need3913 // to build up a full list of the parentNodes for comparison3914 while ( cur ) {3915 ap.unshift( cur );3916 cur = cur.parentNode;3917 }3918 3919 cur = bup;3920 3921 while ( cur ) {3922 bp.unshift( cur );3923 cur = cur.parentNode;3924 }3925 3926 al = ap.length;3927 bl = bp.length;3928 3929 // Start walking down the tree looking for a discrepancy3930 for ( var i = 0; i < al && i < bl; i++ ) {3931 if ( ap[i] !== bp[i] ) {3932 return siblingCheck( ap[i], bp[i] );3933 }3934 }3935 3936 // We ended someplace up the tree so do a sibling check3937 return i === al ?3938 siblingCheck( a, bp[i], -1 ) :3939 siblingCheck( ap[i], b, 1 );3940 };3941 3942 siblingCheck = function( a, b, ret ) {3943 if ( a === b ) {3944 return ret;3945 }3946 3947 var cur = a.nextSibling;3948 3949 while ( cur ) {3950 if ( cur === b ) {3951 return -1;3952 }3953 3954 cur = cur.nextSibling;3955 }3956 3957 return 1;3958 };3959 }3960 3961 // Utility function for retreiving the text value of an array of DOM nodes3962 Sizzle.getText = function( elems ) {3963 var ret = "", elem;3964 3965 for ( var i = 0; elems[i]; i++ ) {3966 elem = elems[i];3967 3968 // Get the text from text nodes and CDATA nodes3969 if ( elem.nodeType === 3 || elem.nodeType === 4 ) {3970 ret += elem.nodeValue;3971 3972 // Traverse everything else, except comment nodes3973 } else if ( elem.nodeType !== 8 ) {3974 ret += Sizzle.getText( elem.childNodes );3975 }3976 }3977 3978 return ret;3979 };3980 3981 // Check to see if the browser returns elements by name when3982 // querying by getElementById (and provide a workaround)3983 (function(){3984 // We're going to inject a fake input element with a specified name3985 var form = document.createElement("div"),3986 id = "script" + (new Date()).getTime(),3987 root = document.documentElement;3988 3989 form.innerHTML = "<a name='" + id + "'/>";3990 3991 // Inject it into the root element, check its status, and remove it quickly3992 root.insertBefore( form, root.firstChild );3993 3994 // The workaround has to do additional checks after a getElementById3995 // Which slows things down for other browsers (hence the branching)3996 if ( document.getElementById( id ) ) {3997 Expr.find.ID = function( match, context, isXML ) {3998 if ( typeof context.getElementById !== "undefined" && !isXML ) {3999 var m = context.getElementById(match[1]);4000 4001 return m ?4002 m.id === match[1] || typeof m.getAttributeNode !== "undefined" && m.getAttributeNode("id").nodeValue === match[1] ?4003 [m] :4004 undefined :4005 [];4006 }4007 };4008 4009 Expr.filter.ID = function( elem, match ) {4010 var node = typeof elem.getAttributeNode !== "undefined" && elem.getAttributeNode("id");4011 4012 return elem.nodeType === 1 && node && node.nodeValue === match;4013 };4014 }4015 4016 root.removeChild( form );4017 4018 // release memory in IE4019 root = form = null;4020 })();4021 4022 (function(){4023 // Check to see if the browser returns only elements4024 // when doing getElementsByTagName("*")4025 4026 // Create a fake element4027 var div = document.createElement("div");4028 div.appendChild( document.createComment("") );4029 4030 // Make sure no comments are found4031 if ( div.getElementsByTagName("*").length > 0 ) {4032 Expr.find.TAG = function( match, context ) {4033 var results = context.getElementsByTagName( match[1] );4034 4035 // Filter out possible comments4036 if ( match[1] === "*" ) {4037 var tmp = [];4038 4039 for ( var i = 0; results[i]; i++ ) {4040 if ( results[i].nodeType === 1 ) {4041 tmp.push( results[i] );4042 }4043 }4044 4045 results = tmp;4046 }4047 4048 return results;4049 };4050 }4051 4052 // Check to see if an attribute returns normalized href attributes4053 div.innerHTML = "<a href='#'></a>";4054 4055 if ( div.firstChild && typeof div.firstChild.getAttribute !== "undefined" &&4056 div.firstChild.getAttribute("href") !== "#" ) {4057 4058 Expr.attrHandle.href = function( elem ) {4059 return elem.getAttribute( "href", 2 );4060 };4061 }4062 4063 // release memory in IE4064 div = null;4065 })();4066 4067 if ( document.querySelectorAll ) {4068 (function(){4069 var oldSizzle = Sizzle,4070 div = document.createElement("div"),4071 id = "__sizzle__";4072 4073 div.innerHTML = "<p class='TEST'></p>";4074 4075 // Safari can't handle uppercase or unicode characters when4076 // in quirks mode.4077 if ( div.querySelectorAll && div.querySelectorAll(".TEST").length === 0 ) {4078 return;4079 }4080 4081 Sizzle = function( query, context, extra, seed ) {4082 context = context || document;4083 4084 // Make sure that attribute selectors are quoted4085 query = query.replace(//=/s*([^'"/]]*)/s*/]/g, "='$1']");4086 4087 // Only use querySelectorAll on non-XML documents4088 // (ID selectors don't work in non-HTML documents)4089 if ( !seed && !Sizzle.isXML(context) ) {4090 if ( context.nodeType === 9 ) {4091 try {4092 return makeArray( context.querySelectorAll(query), extra );4093 } catch(qsaError) {}4094 4095 // qSA works strangely on Element-rooted queries4096 // We can work around this by specifying an extra ID on the root4097 // and working up from there (Thanks to Andrew Dupont for the technique)4098 // IE 8 doesn't work on object elements4099 } else if ( context.nodeType === 1 && context.nodeName.toLowerCase() !== "object" ) {4100 var old = context.getAttribute( "id" ),4101 nid = old || id;4102 4103 if ( !old ) {4104 context.setAttribute( "id", nid );4105 }4106 4107 try {4108 return makeArray( context.querySelectorAll( "#" + nid + " " + query ), extra );4109 4110 } catch(pseudoError) {4111 } finally {4112 if ( !old ) {4113 context.removeAttribute( "id" );4114 }4115 }4116 }4117 }4118 4119 return oldSizzle(query, context, extra, seed);4120 };4121 4122 for ( var prop in oldSizzle ) {4123 Sizzle[ prop ] = oldSizzle[ prop ];4124 }4125 4126 // release memory in IE4127 div = null;4128 })();4129 }4130 4131 (function(){4132 var html = document.documentElement,4133 matches = html.matchesSelector || html.mozMatchesSelector || html.webkitMatchesSelector || html.msMatchesSelector,4134 pseudoWorks = false;4135 4136 try {4137 // This should fail with an exception4138 // Gecko does not error, returns false instead4139 matches.call( document.documentElement, "[test!='']:sizzle" );4140 4141 } catch( pseudoError ) {4142 pseudoWorks = true;4143 }4144 4145 if ( matches ) {4146 Sizzle.matchesSelector = function( node, expr ) {4147 // Make sure that attribute selectors are quoted4148 expr = expr.replace(//=/s*([^'"/]]*)/s*/]/g, "='$1']");4149 4150 if ( !Sizzle.isXML( node ) ) {4151 try { 4152 if ( pseudoWorks || !Expr.match.PSEUDO.test( expr ) && !/!=/.test( expr ) ) {4153 return matches.call( node, expr );4154 }4155 } catch(e) {}4156 }4157 4158 return Sizzle(expr, null, null, [node]).length > 0;4159 };4160 }4161 })();4162 4163 (function(){4164 var div = document.createElement("div");4165 4166 div.innerHTML = "<div class='test e'></div><div class='test'></div>";4167 4168 // Opera can't find a second classname (in 9.6)4169 // Also, make sure that getElementsByClassName actually exists4170 if ( !div.getElementsByClassName || div.getElementsByClassName("e").length === 0 ) {4171 return;4172 }4173 4174 // Safari caches class attributes, doesn't catch changes (in 3.2)4175 div.lastChild.className = "e";4176 4177 if ( div.getElementsByClassName("e").length === 1 ) {4178 return;4179 }4180 4181 Expr.order.splice(1, 0, "CLASS");4182 Expr.find.CLASS = function( match, context, isXML ) {4183 if ( typeof context.getElementsByClassName !== "undefined" && !isXML ) {4184 return context.getElementsByClassName(match[1]);4185 }4186 };4187 4188 // release memory in IE4189 div = null;4190 })();4191 4192 function dirNodeCheck( dir, cur, doneName, checkSet, nodeCheck, isXML ) {4193 for ( var i = 0, l = checkSet.length; i < l; i++ ) {4194 var elem = checkSet[i];4195 4196 if ( elem ) {4197 var match = false;4198 4199 elem = elem[dir];4200 4201 while ( elem ) {4202 if ( elem.sizcache === doneName ) {4203 match = checkSet[elem.sizset];4204 break;4205 }4206 4207 if ( elem.nodeType === 1 && !isXML ){4208 elem.sizcache = doneName;4209 elem.sizset = i;4210 }4211 4212 if ( elem.nodeName.toLowerCase() === cur ) {4213 match = elem;4214 break;4215 }4216 4217 elem = elem[dir];4218 }4219 4220 checkSet[i] = match;4221 }4222 }4223 }4224 4225 function dirCheck( dir, cur, doneName, checkSet, nodeCheck, isXML ) {4226 for ( var i = 0, l = checkSet.length; i < l; i++ ) {4227 var elem = checkSet[i];4228 4229 if ( elem ) {4230 var match = false;4231 4232 elem = elem[dir];4233 4234 while ( elem ) {4235 if ( elem.sizcache === doneName ) {4236 match = checkSet[elem.sizset];4237 break;4238 }4239 4240 if ( elem.nodeType === 1 ) {4241 if ( !isXML ) {4242 elem.sizcache = doneName;4243 elem.sizset = i;4244 }4245 4246 if ( typeof cur !== "string" ) {4247 if ( elem === cur ) {4248 match = true;4249 break;4250 }4251 4252 } else if ( Sizzle.filter( cur, [elem] ).length > 0 ) {4253 match = elem;4254 break;4255 }4256 }4257 4258 elem = elem[dir];4259 }4260 4261 checkSet[i] = match;4262 }4263 }4264 }4265 4266 if ( document.documentElement.contains ) {4267 Sizzle.contains = function( a, b ) {4268 return a !== b && (a.contains ? a.contains(b) : true);4269 };4270 4271 } else if ( document.documentElement.compareDocumentPosition ) {4272 Sizzle.contains = function( a, b ) {4273 return !!(a.compareDocumentPosition(b) & 16);4274 };4275 4276 } else {4277 Sizzle.contains = function() {4278 return false;4279 };4280 }4281 4282 Sizzle.isXML = function( elem ) {4283 // documentElement is verified for cases where it doesn't yet exist4284 // (such as loading iframes in IE - #4833) 4285 var documentElement = (elem ? elem.ownerDocument || elem : 0).documentElement;4286 4287 return documentElement ? documentElement.nodeName !== "HTML" : false;4288 };4289 4290 var posProcess = function( selector, context ) {4291 var match,4292 tmpSet = [],4293 later = "",4294 root = context.nodeType ? [context] : context;4295 4296 // Position selectors must be done after the filter4297 // And so must :not(positional) so we move all PSEUDOs to the end4298 while ( (match = Expr.match.PSEUDO.exec( selector )) ) {4299 later += match[0];4300 selector = selector.replace( Expr.match.PSEUDO, "" );4301 }4302 4303 selector = Expr.relative[selector] ? selector + "*" : selector;4304 4305 for ( var i = 0, l = root.length; i < l; i++ ) {4306 Sizzle( selector, root[i], tmpSet );4307 }4308 4309 return Sizzle.filter( later, tmpSet );4310 };4311 4312 // EXPOSE4313 jQuery.find = Sizzle;4314 jQuery.expr = Sizzle.selectors;4315 jQuery.expr[":"] = jQuery.expr.filters;4316 jQuery.unique = Sizzle.uniqueSort;4317 jQuery.text = Sizzle.getText;4318 jQuery.isXMLDoc = Sizzle.isXML;4319 jQuery.contains = Sizzle.contains;4320 4321 4322 })();4323 4324 4325 var runtil = /Until$/,4326 rparentsprev = /^(?:parents|prevUntil|prevAll)/,4327 // Note: This RegExp should be improved, or likely pulled from Sizzle4328 rmultiselector = /,/,4329 isSimple = /^.[^:#/[/.,]*$/,4330 slice = Array.prototype.slice,4331 POS = jQuery.expr.match.POS;4332 4333 jQuery.fn.extend({4334 find: function( selector ) {4335 var ret = this.pushStack( "", "find", selector ),4336 length = 0;4337 4338 for ( var i = 0, l = this.length; i < l; i++ ) {4339 length = ret.length;4340 jQuery.find( selector, this[i], ret );4341 4342 if ( i > 0 ) {4343 // Make sure that the results are unique4344 for ( var n = length; n < ret.length; n++ ) {4345 for ( var r = 0; r < length; r++ ) {4346 if ( ret[r] === ret[n] ) {4347 ret.splice(n--, 1);4348 break;4349 }4350 }4351 }4352 }4353 }4354 4355 return ret;4356 },4357 4358 has: function( target ) {4359 var targets = jQuery( target );4360 return this.filter(function() {4361 for ( var i = 0, l = targets.length; i < l; i++ ) {4362 if ( jQuery.contains( this, targets[i] ) ) {4363 return true;4364 }4365 }4366 });4367 },4368 4369 not: function( selector ) {4370 return this.pushStack( winnow(this, selector, false), "not", selector);4371 },4372 4373 filter: function( selector ) {4374 return this.pushStack( winnow(this, selector, true), "filter", selector );4375 },4376 4377 is: function( selector ) {4378 return !!selector && jQuery.filter( selector, this ).length > 0;4379 },4380 4381 closest: function( selectors, context ) {4382 var ret = [], i, l, cur = this[0];4383 4384 if ( jQuery.isArray( selectors ) ) {4385 var match, selector,4386 matches = {},4387 level = 1;4388 4389 if ( cur && selectors.length ) {4390 for ( i = 0, l = selectors.length; i < l; i++ ) {4391 selector = selectors[i];4392 4393 if ( !matches[selector] ) {4394 matches[selector] = jQuery.expr.match.POS.test( selector ) ? 4395 jQuery( selector, context || this.context ) :4396 selector;4397 }4398 }4399 4400 while ( cur && cur.ownerDocument && cur !== context ) {4401 for ( selector in matches ) {4402 match = matches[selector];4403 4404 if ( match.jquery ? match.index(cur) > -1 : jQuery(cur).is(match) ) {4405 ret.push({ selector: selector, elem: cur, level: level });4406 }4407 }4408 4409 cur = cur.parentNode;4410 level++;4411 }4412 }4413 4414 return ret;4415 }4416 4417 var pos = POS.test( selectors ) ? 4418 jQuery( selectors, context || this.context ) : null;4419 4420 for ( i = 0, l = this.length; i < l; i++ ) {4421 cur = this[i];4422 4423 while ( cur ) {4424 if ( pos ? pos.index(cur) > -1 : jQuery.find.matchesSelector(cur, selectors) ) {4425 ret.push( cur );4426 break;4427 4428 } else {4429 cur = cur.parentNode;4430 if ( !cur || !cur.ownerDocument || cur === context ) {4431 break;4432 }4433 }4434 }4435 }4436 4437 ret = ret.length > 1 ? jQuery.unique(ret) : ret;4438 4439 return this.pushStack( ret, "closest", selectors );4440 },4441 4442 // Determine the position of an element within4443 // the matched set of elements4444 index: function( elem ) {4445 if ( !elem || typeof elem === "string" ) {4446 return jQuery.inArray( this[0],4447 // If it receives a string, the selector is used4448 // If it receives nothing, the siblings are used4449 elem ? jQuery( elem ) : this.parent().children() );4450 }4451 // Locate the position of the desired element4452 return jQuery.inArray(4453 // If it receives a jQuery object, the first element is used4454 elem.jquery ? elem[0] : elem, this );4455 },4456 4457 add: function( selector, context ) {4458 var set = typeof selector === "string" ?4459 jQuery( selector, context || this.context ) :4460 jQuery.makeArray( selector ),4461 all = jQuery.merge( this.get(), set );4462 4463 return this.pushStack( isDisconnected( set[0] ) || isDisconnected( all[0] ) ?4464 all :4465 jQuery.unique( all ) );4466 },4467 4468 andSelf: function() {4469 return this.add( this.prevObject );4470 }4471 });4472 4473 // A painfully simple check to see if an element is disconnected4474 // from a document (should be improved, where feasible).4475 function isDisconnected( node ) {4476 return !node || !node.parentNode || node.parentNode.nodeType === 11;4477 }4478 4479 jQuery.each({4480 parent: function( elem ) {4481 var parent = elem.parentNode;4482 return parent && parent.nodeType !== 11 ? parent : null;4483 },4484 parents: function( elem ) {4485 return jQuery.dir( elem, "parentNode" );4486 },4487 parentsUntil: function( elem, i, until ) {4488 return jQuery.dir( elem, "parentNode", until );4489 },4490 next: function( elem ) {4491 return jQuery.nth( elem, 2, "nextSibling" );4492 },4493 prev: function( elem ) {4494 return jQuery.nth( elem, 2, "previousSibling" );4495 },4496 nextAll: function( elem ) {4497 return jQuery.dir( elem, "nextSibling" );4498 },4499 prevAll: function( elem ) {4500 return jQuery.dir( elem, "previousSibling" );4501 },4502 nextUntil: function( elem, i, until ) {4503 return jQuery.dir( elem, "nextSibling", until );4504 },4505 prevUntil: function( elem, i, until ) {4506 return jQuery.dir( elem, "previousSibling", until );4507 },4508 siblings: function( elem ) {4509 return jQuery.sibling( elem.parentNode.firstChild, elem );4510 },4511 children: function( elem ) {4512 return jQuery.sibling( elem.firstChild );4513 },4514 contents: function( elem ) {4515 return jQuery.nodeName( elem, "iframe" ) ?4516 elem.contentDocument || elem.contentWindow.document :4517 jQuery.makeArray( elem.childNodes );4518 }4519 }, function( name, fn ) {4520 jQuery.fn[ name ] = function( until, selector ) {4521 var ret = jQuery.map( this, fn, until );4522 4523 if ( !runtil.test( name ) ) {4524 selector = until;4525 }4526 4527 if ( selector && typeof selector === "string" ) {4528 ret = jQuery.filter( selector, ret );4529 }4530 4531 ret = this.length > 1 ? jQuery.unique( ret ) : ret;4532 4533 if ( (this.length > 1 || rmultiselector.test( selector )) && rparentsprev.test( name ) ) {4534 ret = ret.reverse();4535 }4536 4537 return this.pushStack( ret, name, slice.call(arguments).join(",") );4538 };4539 });4540 4541 jQuery.extend({4542 filter: function( expr, elems, not ) {4543 if ( not ) {4544 expr = ":not(" + expr + ")";4545 }4546 4547 return elems.length === 1 ?4548 jQuery.find.matchesSelector(elems[0], expr) ? [ elems[0] ] : [] :4549 jQuery.find.matches(expr, elems);4550 },4551 4552 dir: function( elem, dir, until ) {4553 var matched = [],4554 cur = elem[ dir ];4555 4556 while ( cur && cur.nodeType !== 9 && (until === undefined || cur.nodeType !== 1 || !jQuery( cur ).is( until )) ) {4557 if ( cur.nodeType === 1 ) {4558 matched.push( cur );4559 }4560 cur = cur[dir];4561 }4562 return matched;4563 },4564 4565 nth: function( cur, result, dir, elem ) {4566 result = result || 1;4567 var num = 0;4568 4569 for ( ; cur; cur = cur[dir] ) {4570 if ( cur.nodeType === 1 && ++num === result ) {4571 break;4572 }4573 }4574 4575 return cur;4576 },4577 4578 sibling: function( n, elem ) {4579 var r = [];4580 4581 for ( ; n; n = n.nextSibling ) {4582 if ( n.nodeType === 1 && n !== elem ) {4583 r.push( n );4584 }4585 }4586 4587 return r;4588 }4589 });4590 4591 // Implement the identical functionality for filter and not4592 function winnow( elements, qualifier, keep ) {4593 if ( jQuery.isFunction( qualifier ) ) {4594 return jQuery.grep(elements, function( elem, i ) {4595 var retVal = !!qualifier.call( elem, i, elem );4596 return retVal === keep;4597 });4598 4599 } else if ( qualifier.nodeType ) {4600 return jQuery.grep(elements, function( elem, i ) {4601 return (elem === qualifier) === keep;4602 });4603 4604 } else if ( typeof qualifier === "string" ) {4605 var filtered = jQuery.grep(elements, function( elem ) {4606 return elem.nodeType === 1;4607 });4608 4609 if ( isSimple.test( qualifier ) ) {4610 return jQuery.filter(qualifier, filtered, !keep);4611 } else {4612 qualifier = jQuery.filter( qualifier, filtered );4613 }4614 }4615 4616 return jQuery.grep(elements, function( elem, i ) {4617 return (jQuery.inArray( elem, qualifier ) >= 0) === keep;4618 });4619 }4620 4621 4622 4623 4624 var rinlinejQuery = / jQuery/d+="(?:/d+|null)"/g,4625 rleadingWhitespace = /^/s+/,4626 rxhtmlTag = /<(?!area|br|col|embed|hr|img|input|link|meta|param)(([/w:]+)[^>]*)//>/ig,4627 rtagName = /<([/w:]+)/,4628 rtbody = /<tbody/i,4629 rhtml = /<|&#?/w+;/,4630 rnocache = /<(?:script|object|embed|option|style)/i,4631 // checked="checked" or checked (html5)4632 rchecked = /checked/s*(?:[^=]|=/s*.checked.)/i,4633 raction = //=([^="'>/s]+//)>/g,4634 wrapMap = {4635 option: [ 1, "<select multiple='multiple'>", "</select>" ],4636 legend: [ 1, "<fieldset>", "</fieldset>" ],4637 thead: [ 1, "<table>", "</table>" ],4638 tr: [ 2, "<table><tbody>", "</tbody></table>" ],4639 td: [ 3, "<table><tbody><tr>", "</tr></tbody></table>" ],4640 col: [ 2, "<table><tbody></tbody><colgroup>", "</colgroup></table>" ],4641 area: [ 1, "<map>", "</map>" ],4642 _default: [ 0, "", "" ]4643 };4644 4645 wrapMap.optgroup = wrapMap.option;4646 wrapMap.tbody = wrapMap.tfoot = wrapMap.colgroup = wrapMap.caption = wrapMap.thead;4647 wrapMap.th = wrapMap.td;4648 4649 // IE can't serialize <link> and <script> tags normally4650 if ( !jQuery.support.htmlSerialize ) {4651 wrapMap._default = [ 1, "div<div>", "</div>" ];4652 }4653 4654 jQuery.fn.extend({4655 text: function( text ) {4656 if ( jQuery.isFunction(text) ) {4657 return this.each(function(i) {4658 var self = jQuery( this );4659 4660 self.text( text.call(this, i, self.text()) );4661 });4662 }4663 4664 if ( typeof text !== "object" && text !== undefined ) {4665 return this.empty().append( (this[0] && this[0].ownerDocument || document).createTextNode( text ) );4666 }4667 4668 return jQuery.text( this );4669 },4670 4671 wrapAll: function( html ) {4672 if ( jQuery.isFunction( html ) ) {4673 return this.each(function(i) {4674 jQuery(this).wrapAll( html.call(this, i) );4675 });4676 }4677 4678 if ( this[0] ) {4679 // The elements to wrap the target around4680 var wrap = jQuery( html, this[0].ownerDocument ).eq(0).clone(true);4681 4682 if ( this[0].parentNode ) {4683 wrap.insertBefore( this[0] );4684 }4685 4686 wrap.map(function() {4687 var elem = this;4688 4689 while ( elem.firstChild && elem.firstChild.nodeType === 1 ) {4690 elem = elem.firstChild;4691 }4692 4693 return elem;4694 }).append(this);4695 }4696 4697 return this;4698 },4699 4700 wrapInner: function( html ) {4701 if ( jQuery.isFunction( html ) ) {4702 return this.each(function(i) {4703 jQuery(this).wrapInner( html.call(this, i) );4704 });4705 }4706 4707 return this.each(function() {4708 var self = jQuery( this ),4709 contents = self.contents();4710 4711 if ( contents.length ) {4712 contents.wrapAll( html );4713 4714 } else {4715 self.append( html );4716 }4717 });4718 },4719 4720 wrap: function( html ) {4721 return this.each(function() {4722 jQuery( this ).wrapAll( html );4723 });4724 },4725 4726 unwrap: function() {4727 return this.parent().each(function() {4728 if ( !jQuery.nodeName( this, "body" ) ) {4729 jQuery( this ).replaceWith( this.childNodes );4730 }4731 }).end();4732 },4733 4734 append: function() {4735 return this.domManip(arguments, true, function( elem ) {4736 if ( this.nodeType === 1 ) {4737 this.appendChild( elem );4738 }4739 });4740 },4741 4742 prepend: function() {4743 return this.domManip(arguments, true, function( elem ) {4744 if ( this.nodeType === 1 ) {4745 this.insertBefore( elem, this.firstChild );4746 }4747 });4748 },4749 4750 before: function() {4751 if ( this[0] && this[0].parentNode ) {4752 return this.domManip(arguments, false, function( elem ) {4753 this.parentNode.insertBefore( elem, this );4754 });4755 } else if ( arguments.length ) {4756 var set = jQuery(arguments[0]);4757 set.push.apply( set, this.toArray() );4758 return this.pushStack( set, "before", arguments );4759 }4760 },4761 4762 after: function() {4763 if ( this[0] && this[0].parentNode ) {4764 return this.domManip(arguments, false, function( elem ) {4765 this.parentNode.insertBefore( elem, this.nextSibling );4766 });4767 } else if ( arguments.length ) {4768 var set = this.pushStack( this, "after", arguments );4769 set.push.apply( set, jQuery(arguments[0]).toArray() );4770 return set;4771 }4772 },4773 4774 // keepData is for internal use only--do not document4775 remove: function( selector, keepData ) {4776 for ( var i = 0, elem; (elem = this[i]) != null; i++ ) {4777 if ( !selector || jQuery.filter( selector, [ elem ] ).length ) {4778 if ( !keepData && elem.nodeType === 1 ) {4779 jQuery.cleanData( elem.getElementsByTagName("*") );4780 jQuery.cleanData( [ elem ] );4781 }4782 4783 if ( elem.parentNode ) {4784 elem.parentNode.removeChild( elem );4785 }4786 }4787 }4788 4789 return this;4790 },4791 4792 empty: function() {4793 for ( var i = 0, elem; (elem = this[i]) != null; i++ ) {4794 // Remove element nodes and prevent memory leaks4795 if ( elem.nodeType === 1 ) {4796 jQuery.cleanData( elem.getElementsByTagName("*") );4797 }4798 4799 // Remove any remaining nodes4800 while ( elem.firstChild ) {4801 elem.removeChild( elem.firstChild );4802 }4803 }4804 4805 return this;4806 },4807 4808 clone: function( events ) {4809 // Do the clone4810 var ret = this.map(function() {4811 if ( !jQuery.support.noCloneEvent && !jQuery.isXMLDoc(this) ) {4812 // IE copies events bound via attachEvent when4813 // using cloneNode. Calling detachEvent on the4814 // clone will also remove the events from the orignal4815 // In order to get around this, we use innerHTML.4816 // Unfortunately, this means some modifications to4817 // attributes in IE that are actually only stored4818 // as properties will not be copied (such as the4819 // the name attribute on an input).4820 var html = this.outerHTML,4821 ownerDocument = this.ownerDocument;4822 4823 if ( !html ) {4824 var div = ownerDocument.createElement("div");4825 div.appendChild( this.cloneNode(true) );4826 html = div.innerHTML;4827 }4828 4829 return jQuery.clean([html.replace(rinlinejQuery, "")4830 // Handle the case in IE 8 where action=/test/> self-closes a tag4831 .replace(raction, '="$1">')4832 .replace(rleadingWhitespace, "")], ownerDocument)[0];4833 } else {4834 return this.cloneNode(true);4835 }4836 });4837 4838 // Copy the events from the original to the clone4839 if ( events === true ) {4840 cloneCopyEvent( this, ret );4841 cloneCopyEvent( this.find("*"), ret.find("*") );4842 }4843 4844 // Return the cloned set4845 return ret;4846 },4847 4848 html: function( value ) {4849 if ( value === undefined ) {4850 return this[0] && this[0].nodeType === 1 ?4851 this[0].innerHTML.replace(rinlinejQuery, "") :4852 null;4853 4854 // See if we can take a shortcut and just use innerHTML4855 } else if ( typeof value === "string" && !rnocache.test( value ) &&4856 (jQuery.support.leadingWhitespace || !rleadingWhitespace.test( value )) &&4857 !wrapMap[ (rtagName.exec( value ) || ["", ""])[1].toLowerCase() ] ) {4858 4859 value = value.replace(rxhtmlTag, "<$1></$2>");4860 4861 try {4862 for ( var i = 0, l = this.length; i < l; i++ ) {4863 // Remove element nodes and prevent memory leaks4864 if ( this[i].nodeType === 1 ) {4865 jQuery.cleanData( this[i].getElementsByTagName("*") );4866 this[i].innerHTML = value;4867 }4868 }4869 4870 // If using innerHTML throws an exception, use the fallback method4871 } catch(e) {4872 this.empty().append( value );4873 }4874 4875 } else if ( jQuery.isFunction( value ) ) {4876 this.each(function(i){4877 var self = jQuery( this );4878 4879 self.html( value.call(this, i, self.html()) );4880 });4881 4882 } else {4883 this.empty().append( value );4884 }4885 4886 return this;4887 },4888 4889 replaceWith: function( value ) {4890 if ( this[0] && this[0].parentNode ) {4891 // Make sure that the elements are removed from the DOM before they are inserted4892 // this can help fix replacing a parent with child elements4893 if ( jQuery.isFunction( value ) ) {4894 return this.each(function(i) {4895 var self = jQuery(this), old = self.html();4896 self.replaceWith( value.call( this, i, old ) );4897 });4898 }4899 4900 if ( typeof value !== "string" ) {4901 value = jQuery( value ).detach();4902 }4903 4904 return this.each(function() {4905 var next = this.nextSibling,4906 parent = this.parentNode;4907 4908 jQuery( this ).remove();4909 4910 if ( next ) {4911 jQuery(next).before( value );4912 } else {4913 jQuery(parent).append( value );4914 }4915 });4916 } else {4917 return this.pushStack( jQuery(jQuery.isFunction(value) ? value() : value), "replaceWith", value );4918 }4919 },4920 4921 detach: function( selector ) {4922 return this.remove( selector, true );4923 },4924 4925 domManip: function( args, table, callback ) {4926 var results, first, fragment, parent,4927 value = args[0],4928 scripts = [];4929 4930 // We can't cloneNode fragments that contain checked, in WebKit4931 if ( !jQuery.support.checkClone && arguments.length === 3 && typeof value === "string" && rchecked.test( value ) ) {4932 return this.each(function() {4933 jQuery(this).domManip( args, table, callback, true );4934 });4935 }4936 4937 if ( jQuery.isFunction(value) ) {4938 return this.each(function(i) {4939 var self = jQuery(this);4940 args[0] = value.call(this, i, table ? self.html() : undefined);4941 self.domManip( args, table, callback );4942 });4943 }4944 4945 if ( this[0] ) {4946 parent = value && value.parentNode;4947 4948 // If we're in a fragment, just use that instead of building a new one4949 if ( jQuery.support.parentNode && parent && parent.nodeType === 11 && parent.childNodes.length === this.length ) {4950 results = { fragment: parent };4951 4952 } else {4953 results = jQuery.buildFragment( args, this, scripts );4954 }4955 4956 fragment = results.fragment;4957 4958 if ( fragment.childNodes.length === 1 ) {4959 first = fragment = fragment.firstChild;4960 } else {4961 first = fragment.firstChild;4962 }4963 4964 if ( first ) {4965 table = table && jQuery.nodeName( first, "tr" );4966 4967 for ( var i = 0, l = this.length; i < l; i++ ) {4968 callback.call(4969 table ?4970 root(this[i], first) :4971 this[i],4972 i > 0 || results.cacheable || this.length > 1 ?4973 fragment.cloneNode(true) :4974 fragment4975 );4976 }4977 }4978 4979 if ( scripts.length ) {4980 jQuery.each( scripts, evalScript );4981 }4982 }4983 4984 return this;4985 }4986 });4987 4988 function root( elem, cur ) {4989 return jQuery.nodeName(elem, "table") ?4990 (elem.getElementsByTagName("tbody")[0] ||4991 elem.appendChild(elem.ownerDocument.createElement("tbody"))) :4992 elem;4993 }4994 4995 function cloneCopyEvent(orig, ret) {4996 var i = 0;4997 4998 ret.each(function() {4999 if ( this.nodeName !== (orig[i] && orig[i].nodeName) ) {5000 return;5001 }5002 5003 var oldData = jQuery.data( orig[i++] ),5004 curData = jQuery.data( this, oldData ),5005 events = oldData && oldData.events;5006 5007 if ( events ) {5008 delete curData.handle;5009 curData.events = {};5010 5011 for ( var type in events ) {5012 for ( var handler in events[ type ] ) {5013 jQuery.event.add( this, type, events[ type ][ handler ], events[ type ][ handler ].data );5014 }5015 }5016 }5017 });5018 }5019 5020 jQuery.buildFragment = function( args, nodes, scripts ) {5021 var fragment, cacheable, cacheresults,5022 doc = (nodes && nodes[0] ? nodes[0].ownerDocument || nodes[0] : document);5023 5024 // Only cache "small" (1/2 KB) strings that are associated with the main document5025 // Cloning options loses the selected state, so don't cache them5026 // IE 6 doesn't like it when you put <object> or <embed> elements in a fragment5027 // Also, WebKit does not clone 'checked' attributes on cloneNode, so don't cache5028 if ( args.length === 1 && typeof args[0] === "string" && args[0].length < 512 && doc === document &&5029 !rnocache.test( args[0] ) && (jQuery.support.checkClone || !rchecked.test( args[0] )) ) {5030 5031 cacheable = true;5032 cacheresults = jQuery.fragments[ args[0] ];5033 if ( cacheresults ) {5034 if ( cacheresults !== 1 ) {5035 fragment = cacheresults;5036 }5037 }5038 }5039 5040 if ( !fragment ) {5041 fragment = doc.createDocumentFragment();5042 jQuery.clean( args, doc, fragment, scripts );5043 }5044 5045 if ( cacheable ) {5046 jQuery.fragments[ args[0] ] = cacheresults ? fragment : 1;5047 }5048 5049 return { fragment: fragment, cacheable: cacheable };5050 };5051 5052 jQuery.fragments = {};5053 5054 jQuery.each({5055 appendTo: "append",5056 prependTo: "prepend",5057 insertBefore: "before",5058 insertAfter: "after",5059 replaceAll: "replaceWith"5060 }, function( name, original ) {5061 jQuery.fn[ name ] = function( selector ) {5062 var ret = [],5063 insert = jQuery( selector ),5064 parent = this.length === 1 && this[0].parentNode;5065 5066 if ( parent && parent.nodeType === 11 && parent.childNodes.length === 1 && insert.length === 1 ) {5067 insert[ original ]( this[0] );5068 return this;5069 5070 } else {5071 for ( var i = 0, l = insert.length; i < l; i++ ) {5072 var elems = (i > 0 ? this.clone(true) : this).get();5073 jQuery( insert[i] )[ original ]( elems );5074 ret = ret.concat( elems );5075 }5076 5077 return this.pushStack( ret, name, insert.selector );5078 }5079 };5080 });5081 5082 jQuery.extend({5083 clean: function( elems, context, fragment, scripts ) {5084 context = context || document;5085 5086 // !context.createElement fails in IE with an error but returns typeof 'object'5087 if ( typeof context.createElement === "undefined" ) {5088 context = context.ownerDocument || context[0] && context[0].ownerDocument || document;5089 }5090 5091 var ret = [];5092 5093 for ( var i = 0, elem; (elem = elems[i]) != null; i++ ) {5094 if ( typeof elem === "number" ) {5095 elem += "";5096 }5097 5098 if ( !elem ) {5099 continue;5100 }5101 5102 // Convert html string into DOM nodes5103 if ( typeof elem === "string" && !rhtml.test( elem ) ) {5104 elem = context.createTextNode( elem );5105 5106 } else if ( typeof elem === "string" ) {5107 // Fix "XHTML"-style tags in all browsers5108 elem = elem.replace(rxhtmlTag, "<$1></$2>");5109 5110 // Trim whitespace, otherwise indexOf won't work as expected5111 var tag = (rtagName.exec( elem ) || ["", ""])[1].toLowerCase(),5112 wrap = wrapMap[ tag ] || wrapMap._default,5113 depth = wrap[0],5114 div = context.createElement("div");5115 5116 // Go to html and back, then peel off extra wrappers5117 div.innerHTML = wrap[1] + elem + wrap[2];5118 5119 // Move to the right depth5120 while ( depth-- ) {5121 div = div.lastChild;5122 }5123 5124 // Remove IE's autoinserted <tbody> from table fragments5125 if ( !jQuery.support.tbody ) {5126 5127 // String was a <table>, *may* have spurious <tbody>5128 var hasBody = rtbody.test(elem),5129 tbody = tag === "table" && !hasBody ?5130 div.firstChild && div.firstChild.childNodes :5131 5132 // String was a bare <thead> or <tfoot>5133 wrap[1] === "<table>" && !hasBody ?5134 div.childNodes :5135 [];5136 5137 for ( var j = tbody.length - 1; j >= 0 ; --j ) {5138 if ( jQuery.nodeName( tbody[ j ], "tbody" ) && !tbody[ j ].childNodes.length ) {5139 tbody[ j ].parentNode.removeChild( tbody[ j ] );5140 }5141 }5142 5143 }5144 5145 // IE completely kills leading whitespace when innerHTML is used5146 if ( !jQuery.support.leadingWhitespace && rleadingWhitespace.test( elem ) ) {5147 div.insertBefore( context.createTextNode( rleadingWhitespace.exec(elem)[0] ), div.firstChild );5148 }5149 5150 elem = div.childNodes;5151 }5152 5153 if ( elem.nodeType ) {5154 ret.push( elem );5155 } else {5156 ret = jQuery.merge( ret, elem );5157 }5158 }5159 5160 if ( fragment ) {5161 for ( i = 0; ret[i]; i++ ) {5162 if ( scripts && jQuery.nodeName( ret[i], "script" ) && (!ret[i].type || ret[i].type.toLowerCase() === "text/javascript") ) {5163 scripts.push( ret[i].parentNode ? ret[i].parentNode.removeChild( ret[i] ) : ret[i] );5164 5165 } else {5166 if ( ret[i].nodeType === 1 ) {5167 ret.splice.apply( ret, [i + 1, 0].concat(jQuery.makeArray(ret[i].getElementsByTagName("script"))) );5168 }5169 fragment.appendChild( ret[i] );5170 }5171 }5172 }5173 5174 return ret;5175 },5176 5177 cleanData: function( elems ) {5178 var data, id, cache = jQuery.cache,5179 special = jQuery.event.special,5180 deleteExpando = jQuery.support.deleteExpando;5181 5182 for ( var i = 0, elem; (elem = elems[i]) != null; i++ ) {5183 if ( elem.nodeName && jQuery.noData[elem.nodeName.toLowerCase()] ) {5184 continue;5185 }5186 5187 id = elem[ jQuery.expando ];5188 5189 if ( id ) {5190 data = cache[ id ];5191 5192 if ( data && data.events ) {5193 for ( var type in data.events ) {5194 if ( special[ type ] ) {5195 jQuery.event.remove( elem, type );5196 5197 } else {5198 jQuery.removeEvent( elem, type, data.handle );5199 }5200 }5201 }5202 5203 if ( deleteExpando ) {5204 delete elem[ jQuery.expando ];5205 5206 } else if ( elem.removeAttribute ) {5207 elem.removeAttribute( jQuery.expando );5208 }5209 5210 delete cache[ id ];5211 }5212 }5213 }5214 });5215 5216 function evalScript( i, elem ) {5217 if ( elem.src ) {5218 jQuery.ajax({5219 url: elem.src,5220 async: false,5221 dataType: "script"5222 });5223 } else {5224 jQuery.globalEval( elem.text || elem.textContent || elem.innerHTML || "" );5225 }5226 5227 if ( elem.parentNode ) {5228 elem.parentNode.removeChild( elem );5229 }5230 }5231 5232 5233 5234 5235 var ralpha = /alpha/([^)]*/)/i,5236 ropacity = /opacity=([^)]*)/,5237 rdashAlpha = /-([a-z])/ig,5238 rupper = /([A-Z])/g,5239 rnumpx = /^-?/d+(?:px)?$/i,5240 rnum = /^-?/d/,5241 5242 cssShow = { position: "absolute", visibility: "hidden", display: "block" },5243 cssWidth = [ "Left", "Right" ],5244 cssHeight = [ "Top", "Bottom" ],5245 curCSS,5246 5247 getComputedStyle,5248 currentStyle,5249 5250 fcamelCase = function( all, letter ) {5251 return letter.toUpperCase();5252 };5253 5254 jQuery.fn.css = function( name, value ) {5255 // Setting 'undefined' is a no-op5256 if ( arguments.length === 2 && value === undefined ) {5257 return this;5258 }5259 5260 return jQuery.access( this, name, value, true, function( elem, name, value ) {5261 return value !== undefined ?5262 jQuery.style( elem, name, value ) :5263 jQuery.css( elem, name );5264 });5265 };5266 5267 jQuery.extend({5268 // Add in style property hooks for overriding the default5269 // behavior of getting and setting a style property5270 cssHooks: {5271 opacity: {5272 get: function( elem, computed ) {5273 if ( computed ) {5274 // We should always get a number back from opacity5275 var ret = curCSS( elem, "opacity", "opacity" );5276 return ret === "" ? "1" : ret;5277 5278 } else {5279 return elem.style.opacity;5280 }5281 }5282 }5283 },5284 5285 // Exclude the following css properties to add px5286 cssNumber: {5287 "zIndex": true,5288 "fontWeight": true,5289 "opacity": true,5290 "zoom": true,5291 "lineHeight": true5292 },5293 5294 // Add in properties whose names you wish to fix before5295 // setting or getting the value5296 cssProps: {5297 // normalize float css property5298 "float": jQuery.support.cssFloat ? "cssFloat" : "styleFloat"5299 },5300 5301 // Get and set the style property on a DOM Node5302 style: function( elem, name, value, extra ) {5303 // Don't set styles on text and comment nodes5304 if ( !elem || elem.nodeType === 3 || elem.nodeType === 8 || !elem.style ) {5305 return;5306 }5307 5308 // Make sure that we're working with the right name5309 var ret, origName = jQuery.camelCase( name ),5310 style = elem.style, hooks = jQuery.cssHooks[ origName ];5311 5312 name = jQuery.cssProps[ origName ] || origName;5313 5314 // Check if we're setting a value5315 if ( value !== undefined ) {5316 // Make sure that NaN and null values aren't set. See: #71165317 if ( typeof value === "number" && isNaN( value ) || value == null ) {5318 return;5319 }5320 5321 // If a number was passed in, add 'px' to the (except for certain CSS properties)5322 if ( typeof value === "number" && !jQuery.cssNumber[ origName ] ) {5323 value += "px";5324 }5325 5326 // If a hook was provided, use that value, otherwise just set the specified value5327 if ( !hooks || !("set" in hooks) || (value = hooks.set( elem, value )) !== undefined ) {5328 // Wrapped to prevent IE from throwing errors when 'invalid' values are provided5329 // Fixes bug #55095330 try {5331 style[ name ] = value;5332 } catch(e) {}5333 }5334 5335 } else {5336 // If a hook was provided get the non-computed value from there5337 if ( hooks && "get" in hooks && (ret = hooks.get( elem, false, extra )) !== undefined ) {5338 return ret;5339 }5340 5341 // Otherwise just get the value from the style object5342 return style[ name ];5343 }5344 },5345 5346 css: function( elem, name, extra ) {5347 // Make sure that we're working with the right name5348 var ret, origName = jQuery.camelCase( name ),5349 hooks = jQuery.cssHooks[ origName ];5350 5351 name = jQuery.cssProps[ origName ] || origName;5352 5353 // If a hook was provided get the computed value from there5354 if ( hooks && "get" in hooks && (ret = hooks.get( elem, true, extra )) !== undefined ) {5355 return ret;5356 5357 // Otherwise, if a way to get the computed value exists, use that5358 } else if ( curCSS ) {5359 return curCSS( elem, name, origName );5360 }5361 },5362 5363 // A method for quickly swapping in/out CSS properties to get correct calculations5364 swap: function( elem, options, callback ) {5365 var old = {};5366 5367 // Remember the old values, and insert the new ones5368 for ( var name in options ) {5369 old[ name ] = elem.style[ name ];5370 elem.style[ name ] = options[ name ];5371 }5372 5373 callback.call( elem );5374 5375 // Revert the old values5376 for ( name in options ) {5377 elem.style[ name ] = old[ name ];5378 }5379 },5380 5381 camelCase: function( string ) {5382 return string.replace( rdashAlpha, fcamelCase );5383 }5384 });5385 5386 // DEPRECATED, Use jQuery.css() instead5387 jQuery.curCSS = jQuery.css;5388 5389 jQuery.each(["height", "width"], function( i, name ) {5390 jQuery.cssHooks[ name ] = {5391 get: function( elem, computed, extra ) {5392 var val;5393 5394 if ( computed ) {5395 if ( elem.offsetWidth !== 0 ) {5396 val = getWH( elem, name, extra );5397 5398 } else {5399 jQuery.swap( elem, cssShow, function() {5400 val = getWH( elem, name, extra );5401 });5402 }5403 5404 if ( val <= 0 ) {5405 val = curCSS( elem, name, name );5406 5407 if ( val === "0px" && currentStyle ) {5408 val = currentStyle( elem, name, name );5409 }5410 5411 if ( val != null ) {5412 // Should return "auto" instead of 0, use 0 for5413 // temporary backwards-compat5414 return val === "" || val === "auto" ? "0px" : val;5415 }5416 }5417 5418 if ( val < 0 || val == null ) {5419 val = elem.style[ name ];5420 5421 // Should return "auto" instead of 0, use 0 for5422 // temporary backwards-compat5423 return val === "" || val === "auto" ? "0px" : val;5424 }5425 5426 return typeof val === "string" ? val : val + "px";5427 }5428 },5429 5430 set: function( elem, value ) {5431 if ( rnumpx.test( value ) ) {5432 // ignore negative width and height values #15995433 value = parseFloat(value);5434 5435 if ( value >= 0 ) {5436 return value + "px";5437 }5438 5439 } else {5440 return value;5441 }5442 }5443 };5444 });5445 5446 if ( !jQuery.support.opacity ) {5447 jQuery.cssHooks.opacity = {5448 get: function( elem, computed ) {5449 // IE uses filters for opacity5450 return ropacity.test((computed && elem.currentStyle ? elem.currentStyle.filter : elem.style.filter) || "") ?5451 (parseFloat(RegExp.$1) / 100) + "" :5452 computed ? "1" : "";5453 },5454 5455 set: function( elem, value ) {5456 var style = elem.style;5457 5458 // IE has trouble with opacity if it does not have layout5459 // Force it by setting the zoom level5460 style.zoom = 1;5461 5462 // Set the alpha filter to set the opacity5463 var opacity = jQuery.isNaN(value) ?5464 "" :5465 "alpha(opacity=" + value * 100 + ")",5466 filter = style.filter || "";5467 5468 style.filter = ralpha.test(filter) ?5469 filter.replace(ralpha, opacity) :5470 style.filter + ' ' + opacity;5471 }5472 };5473 }5474 5475 if ( document.defaultView && document.defaultView.getComputedStyle ) {5476 getComputedStyle = function( elem, newName, name ) {5477 var ret, defaultView, computedStyle;5478 5479 name = name.replace( rupper, "-$1" ).toLowerCase();5480 5481 if ( !(defaultView = elem.ownerDocument.defaultView) ) {5482 return undefined;5483 }5484 5485 if ( (computedStyle = defaultView.getComputedStyle( elem, null )) ) {5486 ret = computedStyle.getPropertyValue( name );5487 if ( ret === "" && !jQuery.contains( elem.ownerDocument.documentElement, elem ) ) {5488 ret = jQuery.style( elem, name );5489 }5490 }5491 5492 return ret;5493 };5494 }5495 5496 if ( document.documentElement.currentStyle ) {5497 currentStyle = function( elem, name ) {5498 var left, rsLeft,5499 ret = elem.currentStyle && elem.currentStyle[ name ],5500 style = elem.style;5501 5502 // From the awesome hack by Dean Edwards5503 // http://erik.eae.net/archives/2007/07/27/18.54.15/#comment-1022915504 5505 // If we're not dealing with a regular pixel number5506 // but a number that has a weird ending, we need to convert it to pixels5507 if ( !rnumpx.test( ret ) && rnum.test( ret ) ) {5508 // Remember the original values5509 left = style.left;5510 rsLeft = elem.runtimeStyle.left;5511 5512 // Put in the new values to get a computed value out5513 elem.runtimeStyle.left = elem.currentStyle.left;5514 style.left = name === "fontSize" ? "1em" : (ret || 0);5515 ret = style.pixelLeft + "px";5516 5517 // Revert the changed values5518 style.left = left;5519 elem.runtimeStyle.left = rsLeft;5520 }5521 5522 return ret === "" ? "auto" : ret;5523 };5524 }5525 5526 curCSS = getComputedStyle || currentStyle;5527 5528 function getWH( elem, name, extra ) {5529 var which = name === "width" ? cssWidth : cssHeight,5530 val = name === "width" ? elem.offsetWidth : elem.offsetHeight;5531 5532 if ( extra === "border" ) {5533 return val;5534 }5535 5536 jQuery.each( which, function() {5537 if ( !extra ) {5538 val -= parseFloat(jQuery.css( elem, "padding" + this )) || 0;5539 }5540 5541 if ( extra === "margin" ) {5542 val += parseFloat(jQuery.css( elem, "margin" + this )) || 0;5543 5544 } else {5545 val -= parseFloat(jQuery.css( elem, "border" + this + "Width" )) || 0;5546 }5547 });5548 5549 return val;5550 }5551 5552 if ( jQuery.expr && jQuery.expr.filters ) {5553 jQuery.expr.filters.hidden = function( elem ) {5554 var width = elem.offsetWidth,5555 height = elem.offsetHeight;5556 5557 return (width === 0 && height === 0) || (!jQuery.support.reliableHiddenOffsets && (elem.style.display || jQuery.css( elem, "display" )) === "none");5558 };5559 5560 jQuery.expr.filters.visible = function( elem ) {5561 return !jQuery.expr.filters.hidden( elem );5562 };5563 }5564 5565 5566 5567 5568 var jsc = jQuery.now(),5569 rscript = /<script/b[^<]*(?:(?!<//script>)<[^<]*)*<//script>/gi,5570 rselectTextarea = /^(?:select|textarea)/i,5571 rinput = /^(?:color|date|datetime|email|hidden|month|number|password|range|search|tel|text|time|url|week)$/i,5572 rnoContent = /^(?:GET|HEAD)$/,5573 rbracket = //[/]$/,5574 jsre = //=/?(&|$)/,5575 rquery = //?/,5576 rts = /([?&])_=[^&]*/,5577 rurl = /^(/w+:)?////([^//?#]+)/,5578 r20 = /%20/g,5579 rhash = /#.*$/,5580 5581 // Keep a copy of the old load method5582 _load = jQuery.fn.load;5583 5584 jQuery.fn.extend({5585 load: function( url, params, callback ) {5586 if ( typeof url !== "string" && _load ) {5587 return _load.apply( this, arguments );5588 5589 // Don't do a request if no elements are being requested5590 } else if ( !this.length ) {5591 return this;5592 }5593 5594 var off = url.indexOf(" ");5595 if ( off >= 0 ) {5596 var selector = url.slice(off, url.length);5597 url = url.slice(0, off);5598 }5599 5600 // Default to a GET request5601 var type = "GET";5602 5603 // If the second parameter was provided5604 if ( params ) {5605 // If it's a function5606 if ( jQuery.isFunction( params ) ) {5607 // We assume that it's the callback5608 callback = params;5609 params = null;5610 5611 // Otherwise, build a param string5612 } else if ( typeof params === "object" ) {5613 params = jQuery.param( params, jQuery.ajaxSettings.traditional );5614 type = "POST";5615 }5616 }5617 5618 var self = this;5619 5620 // Request the remote document5621 jQuery.ajax({5622 url: url,5623 type: type,5624 dataType: "html",5625 data: params,5626 complete: function( res, status ) {5627 // If successful, inject the HTML into all the matched elements5628 if ( status === "success" || status === "notmodified" ) {5629 // See if a selector was specified5630 self.html( selector ?5631 // Create a dummy div to hold the results5632 jQuery("<div>")5633 // inject the contents of the document in, removing the scripts5634 // to avoid any 'Permission Denied' errors in IE5635 .append(res.responseText.replace(rscript, ""))5636 5637 // Locate the specified elements5638 .find(selector) :5639 5640 // If not, just inject the full result5641 res.responseText );5642 }5643 5644 if ( callback ) {5645 self.each( callback, [res.responseText, status, res] );5646 }5647 }5648 });5649 5650 return this;5651 },5652 5653 serialize: function() {5654 return jQuery.param(this.serializeArray());5655 },5656 5657 serializeArray: function() {5658 return this.map(function() {5659 return this.elements ? jQuery.makeArray(this.elements) : this;5660 })5661 .filter(function() {5662 return this.name && !this.disabled &&5663 (this.checked || rselectTextarea.test(this.nodeName) ||5664 rinput.test(this.type));5665 })5666 .map(function( i, elem ) {5667 var val = jQuery(this).val();5668 5669 return val == null ?5670 null :5671 jQuery.isArray(val) ?5672 jQuery.map( val, function( val, i ) {5673 return { name: elem.name, value: val };5674 }) :5675 { name: elem.name, value: val };5676 }).get();5677 }5678 });5679 5680 // Attach a bunch of functions for handling common AJAX events5681 jQuery.each( "ajaxStart ajaxStop ajaxComplete ajaxError ajaxSuccess ajaxSend".split(" "), function( i, o ) {5682 jQuery.fn[o] = function( f ) {5683 return this.bind(o, f);5684 };5685 });5686 5687 jQuery.extend({5688 get: function( url, data, callback, type ) {5689 // shift arguments if data argument was omited5690 if ( jQuery.isFunction( data ) ) {5691 type = type || callback;5692 callback = data;5693 data = null;5694 }5695 5696 return jQuery.ajax({5697 type: "GET",5698 url: url,5699 data: data,5700 success: callback,5701 dataType: type5702 });5703 },5704 5705 getScript: function( url, callback ) {5706 return jQuery.get(url, null, callback, "script");5707 },5708 5709 getJSON: function( url, data, callback ) {5710 return jQuery.get(url, data, callback, "json");5711 },5712 5713 post: function( url, data, callback, type ) {5714 // shift arguments if data argument was omited5715 if ( jQuery.isFunction( data ) ) {5716 type = type || callback;5717 callback = data;5718 data = {};5719 }5720 5721 return jQuery.ajax({5722 type: "POST",5723 url: url,5724 data: data,5725 success: callback,5726 dataType: type5727 });5728 },5729 5730 ajaxSetup: function( settings ) {5731 jQuery.extend( jQuery.ajaxSettings, settings );5732 },5733 5734 ajaxSettings: {5735 url: location.href,5736 global: true,5737 type: "GET",5738 contentType: "application/x-www-form-urlencoded",5739 processData: true,5740 async: true,5741 /*5742 timeout: 0,5743 data: null,5744 username: null,5745 password: null,5746 traditional: false,5747 */5748 // This function can be overriden by calling jQuery.ajaxSetup5749 xhr: function() {5750 return new window.XMLHttpRequest();5751 },5752 accepts: {5753 xml: "application/xml, text/xml",5754 html: "text/html",5755 script: "text/javascript, application/javascript",5756 json: "application/json, text/javascript",5757 text: "text/plain",5758 _default: "*/*"5759 }5760 },5761 5762 ajax: function( origSettings ) {5763 var s = jQuery.extend(true, {}, jQuery.ajaxSettings, origSettings),5764 jsonp, status, data, type = s.type.toUpperCase(), noContent = rnoContent.test(type);5765 5766 s.url = s.url.replace( rhash, "" );5767 5768 // Use original (not extended) context object if it was provided5769 s.context = origSettings && origSettings.context != null ? origSettings.context : s;5770 5771 // convert data if not already a string5772 if ( s.data && s.processData && typeof s.data !== "string" ) {5773 s.data = jQuery.param( s.data, s.traditional );5774 }5775 5776 // Handle JSONP Parameter Callbacks5777 if ( s.dataType === "jsonp" ) {5778 if ( type === "GET" ) {5779 if ( !jsre.test( s.url ) ) {5780 s.url += (rquery.test( s.url ) ? "&" : "?") + (s.jsonp || "callback") + "=?";5781 }5782 } else if ( !s.data || !jsre.test(s.data) ) {5783 s.data = (s.data ? s.data + "&" : "") + (s.jsonp || "callback") + "=?";5784 }5785 s.dataType = "json";5786 }5787 5788 // Build temporary JSONP function5789 if ( s.dataType === "json" && (s.data && jsre.test(s.data) || jsre.test(s.url)) ) {5790 jsonp = s.jsonpCallback || ("jsonp" + jsc++);5791 5792 // Replace the =? sequence both in the query string and the data5793 if ( s.data ) {5794 s.data = (s.data + "").replace(jsre, "=" + jsonp + "$1");5795 }5796 5797 s.url = s.url.replace(jsre, "=" + jsonp + "$1");5798 5799 // We need to make sure5800 // that a JSONP style response is executed properly5801 s.dataType = "script";5802 5803 // Handle JSONP-style loading5804 var customJsonp = window[ jsonp ];5805 5806 window[ jsonp ] = function( tmp ) {5807 if ( jQuery.isFunction( customJsonp ) ) {5808 customJsonp( tmp );5809 5810 } else {5811 // Garbage collect5812 window[ jsonp ] = undefined;5813 5814 try {5815 delete window[ jsonp ];5816 } catch( jsonpError ) {}5817 }5818 5819 data = tmp;5820 jQuery.handleSuccess( s, xhr, status, data );5821 jQuery.handleComplete( s, xhr, status, data );5822 5823 if ( head ) {5824 head.removeChild( script );5825 }5826 };5827 }5828 5829 if ( s.dataType === "script" && s.cache === null ) {5830 s.cache = false;5831 }5832 5833 if ( s.cache === false && noContent ) {5834 var ts = jQuery.now();5835 5836 // try replacing _= if it is there5837 var ret = s.url.replace(rts, "$1_=" + ts);5838 5839 // if nothing was replaced, add timestamp to the end5840 s.url = ret + ((ret === s.url) ? (rquery.test(s.url) ? "&" : "?") + "_=" + ts : "");5841 }5842 5843 // If data is available, append data to url for GET/HEAD requests5844 if ( s.data && noContent ) {5845 s.url += (rquery.test(s.url) ? "&" : "?") + s.data;5846 }5847 5848 // Watch for a new set of requests5849 if ( s.global && jQuery.active++ === 0 ) {5850 jQuery.event.trigger( "ajaxStart" );5851 }5852 5853 // Matches an absolute URL, and saves the domain5854 var parts = rurl.exec( s.url ),5855 remote = parts && (parts[1] && parts[1].toLowerCase() !== location.protocol || parts[2].toLowerCase() !== location.host);5856 5857 // If we're requesting a remote document5858 // and trying to load JSON or Script with a GET5859 if ( s.dataType === "script" && type === "GET" && remote ) {5860 var head = document.getElementsByTagName("head")[0] || document.documentElement;5861 var script = document.createElement("script");5862 if ( s.scriptCharset ) {5863 script.charset = s.scriptCharset;5864 }5865 script.src = s.url;5866 5867 // Handle Script loading5868 if ( !jsonp ) {5869 var done = false;5870 5871 // Attach handlers for all browsers5872 script.onload = script.onreadystatechange = function() {5873 if ( !done && (!this.readyState ||5874 this.readyState === "loaded" || this.readyState === "complete") ) {5875 done = true;5876 jQuery.handleSuccess( s, xhr, status, data );5877 jQuery.handleComplete( s, xhr, status, data );5878 5879 // Handle memory leak in IE5880 script.onload = script.onreadystatechange = null;5881 if ( head && script.parentNode ) {5882 head.removeChild( script );5883 }5884 }5885 };5886 }5887 5888 // Use insertBefore instead of appendChild to circumvent an IE6 bug.5889 // This arises when a base node is used (#2709 and #4378).5890 head.insertBefore( script, head.firstChild );5891 5892 // We handle everything using the script element injection5893 return undefined;5894 }5895 5896 var requestDone = false;5897 5898 // Create the request object5899 var xhr = s.xhr();5900 5901 if ( !xhr ) {5902 return;5903 }5904 5905 // Open the socket5906 // Passing null username, generates a login popup on Opera (#2865)5907 if ( s.username ) {5908 xhr.open(type, s.url, s.async, s.username, s.password);5909 } else {5910 xhr.open(type, s.url, s.async);5911 }5912 5913 // Need an extra try/catch for cross domain requests in Firefox 35914 try {5915 // Set content-type if data specified and content-body is valid for this type5916 if ( (s.data != null && !noContent) || (origSettings && origSettings.contentType) ) {5917 xhr.setRequestHeader("Content-Type", s.contentType);5918 }5919 5920 // Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.5921 if ( s.ifModified ) {5922 if ( jQuery.lastModified[s.url] ) {5923 xhr.setRequestHeader("If-Modified-Since", jQuery.lastModified[s.url]);5924 }5925 5926 if ( jQuery.etag[s.url] ) {5927 xhr.setRequestHeader("If-None-Match", jQuery.etag[s.url]);5928 }5929 }5930 5931 // Set header so the called script knows that it's an XMLHttpRequest5932 // Only send the header if it's not a remote XHR5933 if ( !remote ) {5934 xhr.setRequestHeader("X-Requested-With", "XMLHttpRequest");5935 }5936 5937 // Set the Accepts header for the server, depending on the dataType5938 xhr.setRequestHeader("Accept", s.dataType && s.accepts[ s.dataType ] ?5939 s.accepts[ s.dataType ] + ", */*; q=0.01" :5940 s.accepts._default );5941 } catch( headerError ) {}5942 5943 // Allow custom headers/mimetypes and early abort5944 if ( s.beforeSend && s.beforeSend.call(s.context, xhr, s) === false ) {5945 // Handle the global AJAX counter5946 if ( s.global && jQuery.active-- === 1 ) {5947 jQuery.event.trigger( "ajaxStop" );5948 }5949 5950 // close opended socket5951 xhr.abort();5952 return false;5953 }5954 5955 if ( s.global ) {5956 jQuery.triggerGlobal( s, "ajaxSend", [xhr, s] );5957 }5958 5959 // Wait for a response to come back5960 var onreadystatechange = xhr.onreadystatechange = function( isTimeout ) {5961 // The request was aborted5962 if ( !xhr || xhr.readyState === 0 || isTimeout === "abort" ) {5963 // Opera doesn't call onreadystatechange before this point5964 // so we simulate the call5965 if ( !requestDone ) {5966 jQuery.handleComplete( s, xhr, status, data );5967 }5968 5969 requestDone = true;5970 if ( xhr ) {5971 xhr.onreadystatechange = jQuery.noop;5972 }5973 5974 // The transfer is complete and the data is available, or the request timed out5975 } else if ( !requestDone && xhr && (xhr.readyState === 4 || isTimeout === "timeout") ) {5976 requestDone = true;5977 xhr.onreadystatechange = jQuery.noop;5978 5979 status = isTimeout === "timeout" ?5980 "timeout" :5981 !jQuery.httpSuccess( xhr ) ?5982 "error" :5983 s.ifModified && jQuery.httpNotModified( xhr, s.url ) ?5984 "notmodified" :5985 "success";5986 5987 var errMsg;5988 5989 if ( status === "success" ) {5990 // Watch for, and catch, XML document parse errors5991 try {5992 // process the data (runs the xml through httpData regardless of callback)5993 data = jQuery.httpData( xhr, s.dataType, s );5994 } catch( parserError ) {5995 status = "parsererror";5996 errMsg = parserError;5997 }5998 }5999 6000 // Make sure that the request was successful or notmodified6001 if ( status === "success" || status === "notmodified" ) {6002 // JSONP handles its own success callback6003 if ( !jsonp ) {6004 jQuery.handleSuccess( s, xhr, status, data );6005 }6006 } else {6007 jQuery.handleError( s, xhr, status, errMsg );6008 }6009 6010 // Fire the complete handlers6011 if ( !jsonp ) {6012 jQuery.handleComplete( s, xhr, status, data );6013 }6014 6015 if ( isTimeout === "timeout" ) {6016 xhr.abort();6017 }6018 6019 // Stop memory leaks6020 if ( s.async ) {6021 xhr = null;6022 }6023 }6024 };6025 6026 // Override the abort handler, if we can (IE 6 doesn't allow it, but that's OK)6027 // Opera doesn't fire onreadystatechange at all on abort6028 try {6029 var oldAbort = xhr.abort;6030 xhr.abort = function() {6031 if ( xhr ) {6032 // oldAbort has no call property in IE7 so6033 // just do it this way, which works in all6034 // browsers6035 Function.prototype.call.call( oldAbort, xhr );6036 }6037 6038 onreadystatechange( "abort" );6039 };6040 } catch( abortError ) {}6041 6042 // Timeout checker6043 if ( s.async && s.timeout > 0 ) {6044 setTimeout(function() {6045 // Check to see if the request is still happening6046 if ( xhr && !requestDone ) {6047 onreadystatechange( "timeout" );6048 }6049 }, s.timeout);6050 }6051 6052 // Send the data6053 try {6054 xhr.send( noContent || s.data == null ? null : s.data );6055 6056 } catch( sendError ) {6057 jQuery.handleError( s, xhr, null, sendError );6058 6059 // Fire the complete handlers6060 jQuery.handleComplete( s, xhr, status, data );6061 }6062 6063 // firefox 1.5 doesn't fire statechange for sync requests6064 if ( !s.async ) {6065 onreadystatechange();6066 }6067 6068 // return XMLHttpRequest to allow aborting the request etc.6069 return xhr;6070 },6071 6072 // Serialize an array of form elements or a set of6073 // key/values into a query string6074 param: function( a, traditional ) {6075 var s = [],6076 add = function( key, value ) {6077 // If value is a function, invoke it and return its value6078 value = jQuery.isFunction(value) ? value() : value;6079 s[ s.length ] = encodeURIComponent(key) + "=" + encodeURIComponent(value);6080 };6081 6082 // Set traditional to true for jQuery <= 1.3.2 behavior.6083 if ( traditional === undefined ) {6084 traditional = jQuery.ajaxSettings.traditional;6085 }6086 6087 // If an array was passed in, assume that it is an array of form elements.6088 if ( jQuery.isArray(a) || a.jquery ) {6089 // Serialize the form elements6090 jQuery.each( a, function() {6091 add( this.name, this.value );6092 });6093 6094 } else {6095 // If traditional, encode the "old" way (the way 1.3.2 or older6096 // did it), otherwise encode params recursively.6097 for ( var prefix in a ) {6098 buildParams( prefix, a[prefix], traditional, add );6099 }6100 }6101 6102 // Return the resulting serialization6103 return s.join("&").replace(r20, "+");6104 }6105 });6106 6107 function buildParams( prefix, obj, traditional, add ) {6108 if ( jQuery.isArray(obj) && obj.length ) {6109 // Serialize array item.6110 jQuery.each( obj, function( i, v ) {6111 if ( traditional || rbracket.test( prefix ) ) {6112 // Treat each array item as a scalar.6113 add( prefix, v );6114 6115 } else {6116 // If array item is non-scalar (array or object), encode its6117 // numeric index to resolve deserialization ambiguity issues.6118 // Note that rack (as of 1.0.0) can't currently deserialize6119 // nested arrays properly, and attempting to do so may cause6120 // a server error. Possible fixes are to modify rack's6121 // deserialization algorithm or to provide an option or flag6122 // to force array serialization to be shallow.6123 buildParams( prefix + "[" + ( typeof v === "object" || jQuery.isArray(v) ? i : "" ) + "]", v, traditional, add );6124 }6125 });6126 6127 } else if ( !traditional && obj != null && typeof obj === "object" ) {6128 if ( jQuery.isEmptyObject( obj ) ) {6129 add( prefix, "" );6130 6131 // Serialize object item.6132 } else {6133 jQuery.each( obj, function( k, v ) {6134 buildParams( prefix + "[" + k + "]", v, traditional, add );6135 });6136 }6137 6138 } else {6139 // Serialize scalar item.6140 add( prefix, obj );6141 }6142 }6143 6144 // This is still on the jQuery object... for now6145 // Want to move this to jQuery.ajax some day6146 jQuery.extend({6147 6148 // Counter for holding the number of active queries6149 active: 0,6150 6151 // Last-Modified header cache for next request6152 lastModified: {},6153 etag: {},6154 6155 handleError: function( s, xhr, status, e ) {6156 // If a local callback was specified, fire it6157 if ( s.error ) {6158 s.error.call( s.context, xhr, status, e );6159 }6160 6161 // Fire the global callback6162 if ( s.global ) {6163 jQuery.triggerGlobal( s, "ajaxError", [xhr, s, e] );6164 }6165 },6166 6167 handleSuccess: function( s, xhr, status, data ) {6168 // If a local callback was specified, fire it and pass it the data6169 if ( s.success ) {6170 s.success.call( s.context, data, status, xhr );6171 }6172 6173 // Fire the global callback6174 if ( s.global ) {6175 jQuery.triggerGlobal( s, "ajaxSuccess", [xhr, s] );6176 }6177 },6178 6179 handleComplete: function( s, xhr, status ) {6180 // Process result6181 if ( s.complete ) {6182 s.complete.call( s.context, xhr, status );6183 }6184 6185 // The request was completed6186 if ( s.global ) {6187 jQuery.triggerGlobal( s, "ajaxComplete", [xhr, s] );6188 }6189 6190 // Handle the global AJAX counter6191 if ( s.global && jQuery.active-- === 1 ) {6192 jQuery.event.trigger( "ajaxStop" );6193 }6194 },6195 6196 triggerGlobal: function( s, type, args ) {6197 (s.context && s.context.url == null ? jQuery(s.context) : jQuery.event).trigger(type, args);6198 },6199 6200 // Determines if an XMLHttpRequest was successful or not6201 httpSuccess: function( xhr ) {6202 try {6203 // IE error sometimes returns 1223 when it should be 204 so treat it as success, see #14506204 return !xhr.status && location.protocol === "file:" ||6205 xhr.status >= 200 && xhr.status < 300 ||6206 xhr.status === 304 || xhr.status === 1223;6207 } catch(e) {}6208 6209 return false;6210 },6211 6212 // Determines if an XMLHttpRequest returns NotModified6213 httpNotModified: function( xhr, url ) {6214 var lastModified = xhr.getResponseHeader("Last-Modified"),6215 etag = xhr.getResponseHeader("Etag");6216 6217 if ( lastModified ) {6218 jQuery.lastModified[url] = lastModified;6219 }6220 6221 if ( etag ) {6222 jQuery.etag[url] = etag;6223 }6224 6225 return xhr.status === 304;6226 },6227 6228 httpData: function( xhr, type, s ) {6229 var ct = xhr.getResponseHeader("content-type") || "",6230 xml = type === "xml" || !type && ct.indexOf("xml") >= 0,6231 data = xml ? xhr.responseXML : xhr.responseText;6232 6233 if ( xml && data.documentElement.nodeName === "parsererror" ) {6234 jQuery.error( "parsererror" );6235 }6236 6237 // Allow a pre-filtering function to sanitize the response6238 // s is checked to keep backwards compatibility6239 if ( s && s.dataFilter ) {6240 data = s.dataFilter( data, type );6241 }6242 6243 // The filter can actually parse the response6244 if ( typeof data === "string" ) {6245 // Get the JavaScript object, if JSON is used.6246 if ( type === "json" || !type && ct.indexOf("json") >= 0 ) {6247 data = jQuery.parseJSON( data );6248 6249 // If the type is "script", eval it in global context6250 } else if ( type === "script" || !type && ct.indexOf("javascript") >= 0 ) {6251 jQuery.globalEval( data );6252 }6253 }6254 6255 return data;6256 }6257 6258 });6259 6260 /*6261 * Create the request object; Microsoft failed to properly6262 * implement the XMLHttpRequest in IE7 (can't request local files),6263 * so we use the ActiveXObject when it is available6264 * Additionally XMLHttpRequest can be disabled in IE7/IE8 so6265 * we need a fallback.6266 */6267 if ( window.ActiveXObject ) {6268 jQuery.ajaxSettings.xhr = function() {6269 if ( window.location.protocol !== "file:" ) {6270 try {6271 return new window.XMLHttpRequest();6272 } catch(xhrError) {}6273 }6274 6275 try {6276 return new window.ActiveXObject("Microsoft.XMLHTTP");6277 } catch(activeError) {}6278 };6279 }6280 6281 // Does this browser support XHR requests?6282 jQuery.support.ajax = !!jQuery.ajaxSettings.xhr();6283 6284 6285 6286 6287 var elemdisplay = {},6288 rfxtypes = /^(?:toggle|show|hide)$/,6289 rfxnum = /^([+/-]=)?([/d+./-]+)(.*)$/,6290 timerId,6291 fxAttrs = [6292 // height animations6293 [ "height", "marginTop", "marginBottom", "paddingTop", "paddingBottom" ],6294 // width animations6295 [ "width", "marginLeft", "marginRight", "paddingLeft", "paddingRight" ],6296 // opacity animations6297 [ "opacity" ]6298 ];6299 6300 jQuery.fn.extend({6301 show: function( speed, easing, callback ) {6302 var elem, display;6303 6304 if ( speed || speed === 0 ) {6305 return this.animate( genFx("show", 3), speed, easing, callback);6306 6307 } else {6308 for ( var i = 0, j = this.length; i < j; i++ ) {6309 elem = this[i];6310 display = elem.style.display;6311 6312 // Reset the inline display of this element to learn if it is6313 // being hidden by cascaded rules or not6314 if ( !jQuery.data(elem, "olddisplay") && display === "none" ) {6315 display = elem.style.display = "";6316 }6317 6318 // Set elements which have been overridden with display: none6319 // in a stylesheet to whatever the default browser style is6320 // for such an element6321 if ( display === "" && jQuery.css( elem, "display" ) === "none" ) {6322 jQuery.data(elem, "olddisplay", defaultDisplay(elem.nodeName));6323 }6324 }6325 6326 // Set the display of most of the elements in a second loop6327 // to avoid the constant reflow6328 for ( i = 0; i < j; i++ ) {6329 elem = this[i];6330 display = elem.style.display;6331 6332 if ( display === "" || display === "none" ) {6333 elem.style.display = jQuery.data(elem, "olddisplay") || "";6334 }6335 }6336 6337 return this;6338 }6339 },6340 6341 hide: function( speed, easing, callback ) {6342 if ( speed || speed === 0 ) {6343 return this.animate( genFx("hide", 3), speed, easing, callback);6344 6345 } else {6346 for ( var i = 0, j = this.length; i < j; i++ ) {6347 var display = jQuery.css( this[i], "display" );6348 6349 if ( display !== "none" ) {6350 jQuery.data( this[i], "olddisplay", display );6351 }6352 }6353 6354 // Set the display of the elements in a second loop6355 // to avoid the constant reflow6356 for ( i = 0; i < j; i++ ) {6357 this[i].style.display = "none";6358 }6359 6360 return this;6361 }6362 },6363 6364 // Save the old toggle function6365 _toggle: jQuery.fn.toggle,6366 6367 toggle: function( fn, fn2, callback ) {6368 var bool = typeof fn === "boolean";6369 6370 if ( jQuery.isFunction(fn) && jQuery.isFunction(fn2) ) {6371 this._toggle.apply( this, arguments );6372 6373 } else if ( fn == null || bool ) {6374 this.each(function() {6375 var state = bool ? fn : jQuery(this).is(":hidden");6376 jQuery(this)[ state ? "show" : "hide" ]();6377 });6378 6379 } else {6380 this.animate(genFx("toggle", 3), fn, fn2, callback);6381 }6382 6383 return this;6384 },6385 6386 fadeTo: function( speed, to, easing, callback ) {6387 return this.filter(":hidden").css("opacity", 0).show().end()6388 .animate({opacity: to}, speed, easing, callback);6389 },6390 6391 animate: function( prop, speed, easing, callback ) {6392 var optall = jQuery.speed(speed, easing, callback);6393 6394 if ( jQuery.isEmptyObject( prop ) ) {6395 return this.each( optall.complete );6396 }6397 6398 return this[ optall.queue === false ? "each" : "queue" ](function() {6399 // XXX 'this' does not always have a nodeName when running the6400 // test suite6401 6402 var opt = jQuery.extend({}, optall), p,6403 isElement = this.nodeType === 1,6404 hidden = isElement && jQuery(this).is(":hidden"),6405 self = this;6406 6407 for ( p in prop ) {6408 var name = jQuery.camelCase( p );6409 6410 if ( p !== name ) {6411 prop[ name ] = prop[ p ];6412 delete prop[ p ];6413 p = name;6414 }6415 6416 if ( prop[p] === "hide" && hidden || prop[p] === "show" && !hidden ) {6417 return opt.complete.call(this);6418 }6419 6420 if ( isElement && ( p === "height" || p === "width" ) ) {6421 // Make sure that nothing sneaks out6422 // Record all 3 overflow attributes because IE does not6423 // change the overflow attribute when overflowX and6424 // overflowY are set to the same value6425 opt.overflow = [ this.style.overflow, this.style.overflowX, this.style.overflowY ];6426 6427 // Set display property to inline-block for height/width6428 // animations on inline elements that are having width/height6429 // animated6430 if ( jQuery.css( this, "display" ) === "inline" &&6431 jQuery.css( this, "float" ) === "none" ) {6432 if ( !jQuery.support.inlineBlockNeedsLayout ) {6433 this.style.display = "inline-block";6434 6435 } else {6436 var display = defaultDisplay(this.nodeName);6437 6438 // inline-level elements accept inline-block;6439 // block-level elements need to be inline with layout6440 if ( display === "inline" ) {6441 this.style.display = "inline-block";6442 6443 } else {6444 this.style.display = "inline";6445 this.style.zoom = 1;6446 }6447 }6448 }6449 }6450 6451 if ( jQuery.isArray( prop[p] ) ) {6452 // Create (if needed) and add to specialEasing6453 (opt.specialEasing = opt.specialEasing || {})[p] = prop[p][1];6454 prop[p] = prop[p][0];6455 }6456 }6457 6458 if ( opt.overflow != null ) {6459 this.style.overflow = "hidden";6460 }6461 6462 opt.curAnim = jQuery.extend({}, prop);6463 6464 jQuery.each( prop, function( name, val ) {6465 var e = new jQuery.fx( self, opt, name );6466 6467 if ( rfxtypes.test(val) ) {6468 e[ val === "toggle" ? hidden ? "show" : "hide" : val ]( prop );6469 6470 } else {6471 var parts = rfxnum.exec(val),6472 start = e.cur() || 0;6473 6474 if ( parts ) {6475 var end = parseFloat( parts[2] ),6476 unit = parts[3] || "px";6477 6478 // We need to compute starting value6479 if ( unit !== "px" ) {6480 jQuery.style( self, name, (end || 1) + unit);6481 start = ((end || 1) / e.cur()) * start;6482 jQuery.style( self, name, start + unit);6483 }6484 6485 // If a +=/-= token was provided, we're doing a relative animation6486 if ( parts[1] ) {6487 end = ((parts[1] === "-=" ? -1 : 1) * end) + start;6488 }6489 6490 e.custom( start, end, unit );6491 6492 } else {6493 e.custom( start, val, "" );6494 }6495 }6496 });6497 6498 // For JS strict compliance6499 return true;6500 });6501 },6502 6503 stop: function( clearQueue, gotoEnd ) {6504 var timers = jQuery.timers;6505 6506 if ( clearQueue ) {6507 this.queue([]);6508 }6509 6510 this.each(function() {6511 // go in reverse order so anything added to the queue during the loop is ignored6512 for ( var i = timers.length - 1; i >= 0; i-- ) {6513 if ( timers[i].elem === this ) {6514 if (gotoEnd) {6515 // force the next step to be the last6516 timers[i](true);6517 }6518 6519 timers.splice(i, 1);6520 }6521 }6522 });6523 6524 // start the next in the queue if the last step wasn't forced6525 if ( !gotoEnd ) {6526 this.dequeue();6527 }6528 6529 return this;6530 }6531 6532 });6533 6534 function genFx( type, num ) {6535 var obj = {};6536 6537 jQuery.each( fxAttrs.concat.apply([], fxAttrs.slice(0,num)), function() {6538 obj[ this ] = type;6539 });6540 6541 return obj;6542 }6543 6544 // Generate shortcuts for custom animations6545 jQuery.each({6546 slideDown: genFx("show", 1),6547 slideUp: genFx("hide", 1),6548 slideToggle: genFx("toggle", 1),6549 fadeIn: { opacity: "show" },6550 fadeOut: { opacity: "hide" },6551 fadeToggle: { opacity: "toggle" }6552 }, function( name, props ) {6553 jQuery.fn[ name ] = function( speed, easing, callback ) {6554 return this.animate( props, speed, easing, callback );6555 };6556 });6557 6558 jQuery.extend({6559 speed: function( speed, easing, fn ) {6560 var opt = speed && typeof speed === "object" ? jQuery.extend({}, speed) : {6561 complete: fn || !fn && easing ||6562 jQuery.isFunction( speed ) && speed,6563 duration: speed,6564 easing: fn && easing || easing && !jQuery.isFunction(easing) && easing6565 };6566 6567 opt.duration = jQuery.fx.off ? 0 : typeof opt.duration === "number" ? opt.duration :6568 opt.duration in jQuery.fx.speeds ? jQuery.fx.speeds[opt.duration] : jQuery.fx.speeds._default;6569 6570 // Queueing6571 opt.old = opt.complete;6572 opt.complete = function() {6573 if ( opt.queue !== false ) {6574 jQuery(this).dequeue();6575 }6576 if ( jQuery.isFunction( opt.old ) ) {6577 opt.old.call( this );6578 }6579 };6580 6581 return opt;6582 },6583 6584 easing: {6585 linear: function( p, n, firstNum, diff ) {6586 return firstNum + diff * p;6587 },6588 swing: function( p, n, firstNum, diff ) {6589 return ((-Math.cos(p*Math.PI)/2) + 0.5) * diff + firstNum;6590 }6591 },6592 6593 timers: [],6594 6595 fx: function( elem, options, prop ) {6596 this.options = options;6597 this.elem = elem;6598 this.prop = prop;6599 6600 if ( !options.orig ) {6601 options.orig = {};6602 }6603 }6604 6605 });6606 6607 jQuery.fx.prototype = {6608 // Simple function for setting a style value6609 update: function() {6610 if ( this.options.step ) {6611 this.options.step.call( this.elem, this.now, this );6612 }6613 6614 (jQuery.fx.step[this.prop] || jQuery.fx.step._default)( this );6615 },6616 6617 // Get the current size6618 cur: function() {6619 if ( this.elem[this.prop] != null && (!this.elem.style || this.elem.style[this.prop] == null) ) {6620 return this.elem[ this.prop ];6621 }6622 6623 var r = parseFloat( jQuery.css( this.elem, this.prop ) );6624 return r && r > -10000 ? r : 0;6625 },6626 6627 // Start an animation from one number to another6628 custom: function( from, to, unit ) {6629 var self = this,6630 fx = jQuery.fx;6631 6632 this.startTime = jQuery.now();6633 this.start = from;6634 this.end = to;6635 this.unit = unit || this.unit || "px";6636 this.now = this.start;6637 this.pos = this.state = 0;6638 6639 function t( gotoEnd ) {6640 return self.step(gotoEnd);6641 }6642 6643 t.elem = this.elem;6644 6645 if ( t() && jQuery.timers.push(t) && !timerId ) {6646 timerId = setInterval(fx.tick, fx.interval);6647 }6648 },6649 6650 // Simple 'show' function6651 show: function() {6652 // Remember where we started, so that we can go back to it later6653 this.options.orig[this.prop] = jQuery.style( this.elem, this.prop );6654 this.options.show = true;6655 6656 // Begin the animation6657 // Make sure that we start at a small width/height to avoid any6658 // flash of content6659 this.custom(this.prop === "width" || this.prop === "height" ? 1 : 0, this.cur());6660 6661 // Start by showing the element6662 jQuery( this.elem ).show();6663 },6664 6665 // Simple 'hide' function6666 hide: function() {6667 // Remember where we started, so that we can go back to it later6668 this.options.orig[this.prop] = jQuery.style( this.elem, this.prop );6669 this.options.hide = true;6670 6671 // Begin the animation6672 this.custom(this.cur(), 0);6673 },6674 6675 // Each step of an animation6676 step: function( gotoEnd ) {6677 var t = jQuery.now(), done = true;6678 6679 if ( gotoEnd || t >= this.options.duration + this.startTime ) {6680 this.now = this.end;6681 this.pos = this.state = 1;6682 this.update();6683 6684 this.options.curAnim[ this.prop ] = true;6685 6686 for ( var i in this.options.curAnim ) {6687 if ( this.options.curAnim[i] !== true ) {6688 done = false;6689 }6690 }6691 6692 if ( done ) {6693 // Reset the overflow6694 if ( this.options.overflow != null && !jQuery.support.shrinkWrapBlocks ) {6695 var elem = this.elem,6696 options = this.options;6697 6698 jQuery.each( [ "", "X", "Y" ], function (index, value) {6699 elem.style[ "overflow" + value ] = options.overflow[index];6700 } );6701 }6702 6703 // Hide the element if the "hide" operation was done6704 if ( this.options.hide ) {6705 jQuery(this.elem).hide();6706 }6707 6708 // Reset the properties, if the item has been hidden or shown6709 if ( this.options.hide || this.options.show ) {6710 for ( var p in this.options.curAnim ) {6711 jQuery.style( this.elem, p, this.options.orig[p] );6712 }6713 }6714 6715 // Execute the complete function6716 this.options.complete.call( this.elem );6717 }6718 6719 return false;6720 6721 } else {6722 var n = t - this.startTime;6723 this.state = n / this.options.duration;6724 6725 // Perform the easing function, defaults to swing6726 var specialEasing = this.options.specialEasing && this.options.specialEasing[this.prop];6727 var defaultEasing = this.options.easing || (jQuery.easing.swing ? "swing" : "linear");6728 this.pos = jQuery.easing[specialEasing || defaultEasing](this.state, n, 0, 1, this.options.duration);6729 this.now = this.start + ((this.end - this.start) * this.pos);6730 6731 // Perform the next step of the animation6732 this.update();6733 }6734 6735 return true;6736 }6737 };6738 6739 jQuery.extend( jQuery.fx, {6740 tick: function() {6741 var timers = jQuery.timers;6742 6743 for ( var i = 0; i < timers.length; i++ ) {6744 if ( !timers[i]() ) {6745 timers.splice(i--, 1);6746 }6747 }6748 6749 if ( !timers.length ) {6750 jQuery.fx.stop();6751 }6752 },6753 6754 interval: 13,6755 6756 stop: function() {6757 clearInterval( timerId );6758 timerId = null;6759 },6760 6761 speeds: {6762 slow: 600,6763 fast: 200,6764 // Default speed6765 _default: 4006766 },6767 6768 step: {6769 opacity: function( fx ) {6770 jQuery.style( fx.elem, "opacity", fx.now );6771 },6772 6773 _default: function( fx ) {6774 if ( fx.elem.style && fx.elem.style[ fx.prop ] != null ) {6775 fx.elem.style[ fx.prop ] = (fx.prop === "width" || fx.prop === "height" ? Math.max(0, fx.now) : fx.now) + fx.unit;6776 } else {6777 fx.elem[ fx.prop ] = fx.now;6778 }6779 }6780 }6781 });6782 6783 if ( jQuery.expr && jQuery.expr.filters ) {6784 jQuery.expr.filters.animated = function( elem ) {6785 return jQuery.grep(jQuery.timers, function( fn ) {6786 return elem === fn.elem;6787 }).length;6788 };6789 }6790 6791 function defaultDisplay( nodeName ) {6792 if ( !elemdisplay[ nodeName ] ) {6793 var elem = jQuery("<" + nodeName + ">").appendTo("body"),6794 display = elem.css("display");6795 6796 elem.remove();6797 6798 if ( display === "none" || display === "" ) {6799 display = "block";6800 }6801 6802 elemdisplay[ nodeName ] = display;6803 }6804 6805 return elemdisplay[ nodeName ];6806 }6807 6808 6809 6810 6811 var rtable = /^t(?:able|d|h)$/i,6812 rroot = /^(?:body|html)$/i;6813 6814 if ( "getBoundingClientRect" in document.documentElement ) {6815 jQuery.fn.offset = function( options ) {6816 var elem = this[0], box;6817 6818 if ( options ) { 6819 return this.each(function( i ) {6820 jQuery.offset.setOffset( this, options, i );6821 });6822 }6823 6824 if ( !elem || !elem.ownerDocument ) {6825 return null;6826 }6827 6828 if ( elem === elem.ownerDocument.body ) {6829 return jQuery.offset.bodyOffset( elem );6830 }6831 6832 try {6833 box = elem.getBoundingClientRect();6834 } catch(e) {}6835 6836 var doc = elem.ownerDocument,6837 docElem = doc.documentElement;6838 6839 // Make sure we're not dealing with a disconnected DOM node6840 if ( !box || !jQuery.contains( docElem, elem ) ) {6841 return box || { top: 0, left: 0 };6842 }6843 6844 var body = doc.body,6845 win = getWindow(doc),6846 clientTop = docElem.clientTop || body.clientTop || 0,6847 clientLeft = docElem.clientLeft || body.clientLeft || 0,6848 scrollTop = (win.pageYOffset || jQuery.support.boxModel && docElem.scrollTop || body.scrollTop ),6849 scrollLeft = (win.pageXOffset || jQuery.support.boxModel && docElem.scrollLeft || body.scrollLeft),6850 top = box.top + scrollTop - clientTop,6851 left = box.left + scrollLeft - clientLeft;6852 6853 return { top: top, left: left };6854 };6855 6856 } else {6857 jQuery.fn.offset = function( options ) {6858 var elem = this[0];6859 6860 if ( options ) { 6861 return this.each(function( i ) {6862 jQuery.offset.setOffset( this, options, i );6863 });6864 }6865 6866 if ( !elem || !elem.ownerDocument ) {6867 return null;6868 }6869 6870 if ( elem === elem.ownerDocument.body ) {6871 return jQuery.offset.bodyOffset( elem );6872 }6873 6874 jQuery.offset.initialize();6875 6876 var computedStyle,6877 offsetParent = elem.offsetParent,6878 prevOffsetParent = elem,6879 doc = elem.ownerDocument,6880 docElem = doc.documentElement,6881 body = doc.body,6882 defaultView = doc.defaultView,6883 prevComputedStyle = defaultView ? defaultView.getComputedStyle( elem, null ) : elem.currentStyle,6884 top = elem.offsetTop,6885 left = elem.offsetLeft;6886 6887 while ( (elem = elem.parentNode) && elem !== body && elem !== docElem ) {6888 if ( jQuery.offset.supportsFixedPosition && prevComputedStyle.position === "fixed" ) {6889 break;6890 }6891 6892 computedStyle = defaultView ? defaultView.getComputedStyle(elem, null) : elem.currentStyle;6893 top -= elem.scrollTop;6894 left -= elem.scrollLeft;6895 6896 if ( elem === offsetParent ) {6897 top += elem.offsetTop;6898 left += elem.offsetLeft;6899 6900 if ( jQuery.offset.doesNotAddBorder && !(jQuery.offset.doesAddBorderForTableAndCells && rtable.test(elem.nodeName)) ) {6901 top += parseFloat( computedStyle.borderTopWidth ) || 0;6902 left += parseFloat( computedStyle.borderLeftWidth ) || 0;6903 }6904 6905 prevOffsetParent = offsetParent;6906 offsetParent = elem.offsetParent;6907 }6908 6909 if ( jQuery.offset.subtractsBorderForOverflowNotVisible && computedStyle.overflow !== "visible" ) {6910 top += parseFloat( computedStyle.borderTopWidth ) || 0;6911 left += parseFloat( computedStyle.borderLeftWidth ) || 0;6912 }6913 6914 prevComputedStyle = computedStyle;6915 }6916 6917 if ( prevComputedStyle.position === "relative" || prevComputedStyle.position === "static" ) {6918 top += body.offsetTop;6919 left += body.offsetLeft;6920 }6921 6922 if ( jQuery.offset.supportsFixedPosition && prevComputedStyle.position === "fixed" ) {6923 top += Math.max( docElem.scrollTop, body.scrollTop );6924 left += Math.max( docElem.scrollLeft, body.scrollLeft );6925 }6926 6927 return { top: top, left: left };6928 };6929 }6930 6931 jQuery.offset = {6932 initialize: function() {6933 var body = document.body, container = document.createElement("div"), innerDiv, checkDiv, table, td, bodyMarginTop = parseFloat( jQuery.css(body, "marginTop") ) || 0,6934 html = "<div style='position:absolute;top:0;left:0;margin:0;border:5px solid #000;padding:0;width:1px;height:1px;'><div></div></div><table style='position:absolute;top:0;left:0;margin:0;border:5px solid #000;padding:0;width:1px;height:1px;' cellpadding='0' cellspacing='0'><tr><td></td></tr></table>";6935 6936 jQuery.extend( container.style, { position: "absolute", top: 0, left: 0, margin: 0, border: 0, width: "1px", height: "1px", visibility: "hidden" } );6937 6938 container.innerHTML = html;6939 body.insertBefore( container, body.firstChild );6940 innerDiv = container.firstChild;6941 checkDiv = innerDiv.firstChild;6942 td = innerDiv.nextSibling.firstChild.firstChild;6943 6944 this.doesNotAddBorder = (checkDiv.offsetTop !== 5);6945 this.doesAddBorderForTableAndCells = (td.offsetTop === 5);6946 6947 checkDiv.style.position = "fixed";6948 checkDiv.style.top = "20px";6949 6950 // safari subtracts parent border width here which is 5px6951 this.supportsFixedPosition = (checkDiv.offsetTop === 20 || checkDiv.offsetTop === 15);6952 checkDiv.style.position = checkDiv.style.top = "";6953 6954 innerDiv.style.overflow = "hidden";6955 innerDiv.style.position = "relative";6956 6957 this.subtractsBorderForOverflowNotVisible = (checkDiv.offsetTop === -5);6958 6959 this.doesNotIncludeMarginInBodyOffset = (body.offsetTop !== bodyMarginTop);6960 6961 body.removeChild( container );6962 body = container = innerDiv = checkDiv = table = td = null;6963 jQuery.offset.initialize = jQuery.noop;6964 },6965 6966 bodyOffset: function( body ) {6967 var top = body.offsetTop,6968 left = body.offsetLeft;6969 6970 jQuery.offset.initialize();6971 6972 if ( jQuery.offset.doesNotIncludeMarginInBodyOffset ) {6973 top += parseFloat( jQuery.css(body, "marginTop") ) || 0;6974 left += parseFloat( jQuery.css(body, "marginLeft") ) || 0;6975 }6976 6977 return { top: top, left: left };6978 },6979 6980 setOffset: function( elem, options, i ) {6981 var position = jQuery.css( elem, "position" );6982 6983 // set position first, in-case top/left are set even on static elem6984 if ( position === "static" ) {6985 elem.style.position = "relative";6986 }6987 6988 var curElem = jQuery( elem ),6989 curOffset = curElem.offset(),6990 curCSSTop = jQuery.css( elem, "top" ),6991 curCSSLeft = jQuery.css( elem, "left" ),6992 calculatePosition = (position === "absolute" && jQuery.inArray('auto', [curCSSTop, curCSSLeft]) > -1),6993 props = {}, curPosition = {}, curTop, curLeft;6994 6995 // need to be able to calculate position if either top or left is auto and position is absolute6996 if ( calculatePosition ) {6997 curPosition = curElem.position();6998 }6999 7000 curTop = calculatePosition ? curPosition.top : parseInt( curCSSTop, 10 ) || 0;7001 curLeft = calculatePosition ? curPosition.left : parseInt( curCSSLeft, 10 ) || 0;7002 7003 if ( jQuery.isFunction( options ) ) {7004 options = options.call( elem, i, curOffset );7005 }7006 7007 if (options.top != null) {7008 props.top = (options.top - curOffset.top) + curTop;7009 }7010 if (options.left != null) {7011 props.left = (options.left - curOffset.left) + curLeft;7012 }7013 7014 if ( "using" in options ) {7015 options.using.call( elem, props );7016 } else {7017 curElem.css( props );7018 }7019 }7020 };7021 7022 7023 jQuery.fn.extend({7024 position: function() {7025 if ( !this[0] ) {7026 return null;7027 }7028 7029 var elem = this[0],7030 7031 // Get *real* offsetParent7032 offsetParent = this.offsetParent(),7033 7034 // Get correct offsets7035 offset = this.offset(),7036 parentOffset = rroot.test(offsetParent[0].nodeName) ? { top: 0, left: 0 } : offsetParent.offset();7037 7038 // Subtract element margins7039 // note: when an element has margin: auto the offsetLeft and marginLeft7040 // are the same in Safari causing offset.left to incorrectly be 07041 offset.top -= parseFloat( jQuery.css(elem, "marginTop") ) || 0;7042 offset.left -= parseFloat( jQuery.css(elem, "marginLeft") ) || 0;7043 7044 // Add offsetParent borders7045 parentOffset.top += parseFloat( jQuery.css(offsetParent[0], "borderTopWidth") ) || 0;7046 parentOffset.left += parseFloat( jQuery.css(offsetParent[0], "borderLeftWidth") ) || 0;7047 7048 // Subtract the two offsets7049 return {7050 top: offset.top - parentOffset.top,7051 left: offset.left - parentOffset.left7052 };7053 },7054 7055 offsetParent: function() {7056 return this.map(function() {7057 var offsetParent = this.offsetParent || document.body;7058 while ( offsetParent && (!rroot.test(offsetParent.nodeName) && jQuery.css(offsetParent, "position") === "static") ) {7059 offsetParent = offsetParent.offsetParent;7060 }7061 return offsetParent;7062 });7063 }7064 });7065 7066 7067 // Create scrollLeft and scrollTop methods7068 jQuery.each( ["Left", "Top"], function( i, name ) {7069 var method = "scroll" + name;7070 7071 jQuery.fn[ method ] = function(val) {7072 var elem = this[0], win;7073 7074 if ( !elem ) {7075 return null;7076 }7077 7078 if ( val !== undefined ) {7079 // Set the scroll offset7080 return this.each(function() {7081 win = getWindow( this );7082 7083 if ( win ) {7084 win.scrollTo(7085 !i ? val : jQuery(win).scrollLeft(),7086 i ? val : jQuery(win).scrollTop()7087 );7088 7089 } else {7090 this[ method ] = val;7091 }7092 });7093 } else {7094 win = getWindow( elem );7095 7096 // Return the scroll offset7097 return win ? ("pageXOffset" in win) ? win[ i ? "pageYOffset" : "pageXOffset" ] :7098 jQuery.support.boxModel && win.document.documentElement[ method ] ||7099 win.document.body[ method ] :7100 elem[ method ];7101 }7102 };7103 });7104 7105 function getWindow( elem ) {7106 return jQuery.isWindow( elem ) ?7107 elem :7108 elem.nodeType === 9 ?7109 elem.defaultView || elem.parentWindow :7110 false;7111 }7112 7113 7114 7115 7116 // Create innerHeight, innerWidth, outerHeight and outerWidth methods7117 jQuery.each([ "Height", "Width" ], function( i, name ) {7118 7119 var type = name.toLowerCase();7120 7121 // innerHeight and innerWidth7122 jQuery.fn["inner" + name] = function() {7123 return this[0] ?7124 parseFloat( jQuery.css( this[0], type, "padding" ) ) :7125 null;7126 };7127 7128 // outerHeight and outerWidth7129 jQuery.fn["outer" + name] = function( margin ) {7130 return this[0] ?7131 parseFloat( jQuery.css( this[0], type, margin ? "margin" : "border" ) ) :7132 null;7133 };7134 7135 jQuery.fn[ type ] = function( size ) {7136 // Get window width or height7137 var elem = this[0];7138 if ( !elem ) {7139 return size == null ? null : this;7140 }7141 7142 if ( jQuery.isFunction( size ) ) {7143 return this.each(function( i ) {7144 var self = jQuery( this );7145 self[ type ]( size.call( this, i, self[ type ]() ) );7146 });7147 }7148 7149 if ( jQuery.isWindow( elem ) ) {7150 // Everyone else use document.documentElement or document.body depending on Quirks vs Standards mode7151 return elem.document.compatMode === "CSS1Compat" && elem.document.documentElement[ "client" + name ] ||7152 elem.document.body[ "client" + name ];7153 7154 // Get document width or height7155 } else if ( elem.nodeType === 9 ) {7156 // Either scroll[Width/Height] or offset[Width/Height], whichever is greater7157 return Math.max(7158 elem.documentElement["client" + name],7159 elem.body["scroll" + name], elem.documentElement["scroll" + name],7160 elem.body["offset" + name], elem.documentElement["offset" + name]7161 );7162 7163 // Get or set width or height on the element7164 } else if ( size === undefined ) {7165 var orig = jQuery.css( elem, type ),7166 ret = parseFloat( orig );7167 7168 return jQuery.isNaN( ret ) ? orig : ret;7169 7170 // Set the width or height on the element (default to pixels if value is unitless)7171 } else {7172 return this.css( type, typeof size === "string" ? size : size + "px" );7173 }7174 };7175 7176 });7177 7178 7179 })(window);jQuery 1.4.4
这个立即执行函数是比较庞大，所以我选取的是1.4.4这样一个比较老的版本，但也足以用来进行说明。
1.整个jQuery占用全局作用域两个变量，一个是jQuery，另一个是$。而且占用两个还是为了方便我们书写。其实两个变量是完全相同的，在第908行，我们可以看到。
// Expose jQuery to the global objectreturn (window.jQuery = window.$ = jQuery);
jQuery内部封装的变量，我们可以直接通过$来访问。这样，避免了声明不必要的全局变量。
这里的jQuery可谓起到了一个命名空间的作用。
试想，如果我们引用了另一个js插件superQuery，它占用了一个全局变量，声明window.superQuery=superQuery;
那即便superQuery内部声明了和jQuery同名变量，它们命名空间不同，实际上，并不会造成冲突。
2.我们再来看913-1105行。
(function(){jQuery.support = {};//……})();
内部主要为创建了jQuery.support。这个创建工作只需要执行一次，所以也使用了立即执行函数。
而巧妙的是，再通过为support添加一系列的内容，就轻松将其暴露在我们可访问的范围之类了。同时，并未造成全局作用域污染。
3.参数和返回值
既然是函数，不可避免地要提一下参数和返回值。
立即函数内部是可以访问外部变量的，所以很多情况下，我们并不需要传参数。如：jQuery的window实参，如果不传入。内部也是可以直接使用的。
返回值也可以直接返回给立即执行函数外的某个变量的一个对象属性（注意，外部变量var a=1;是不能通过a.newAttribute=inParameter来赋值的。）
然而，从代码的可读性等方面考虑，我们显式地传入需要的参数是一个好习惯。
（四）注意点
立即执行函数通常作为一个单独模块使用。一般没有问题，但是，建议在自己写的立即执行函数前加分号，这样可以有效地与前面代码进行隔离。否则，可能出现意想不到的错误。
如：
var c = 12 var d = c (function () { var e = 14; }())
会报这样一个错误：
因为在我们立即执行函数模块前面代码没有一个分号来断句。那编译器就把前面的c和后面的语句当作函数调用来看了。
所以，由于很多时候，在立即执行函数之前的代码我们无法控制，为了良好的容错能力。我们一般在立即执行函数前加个分号与前面的代码断开，避免解析错误。
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