src/selector.js

   1 /*!
   2  * Sizzle CSS Selector Engine - v0.9.3
   3  *  Copyright 2009, The Dojo Foundation
   4  *  Released under the MIT, BSD, and GPL Licenses.
   5  *  More information: http://sizzlejs.com/
   6  */
   7 (function(){
   8
   9 var chunker = /((?:\((?:\([^()]+\)|[^()]+)+\)|\[(?:\[[^[\]]*\]|['"][^'"]*['"]|[^[\]'"]+)+\]|\\.|[^ >+~,(\[\\]+)+|[>+~])(\s*,\s*)?/g,
  10         done = 0,
  11         toString = Object.prototype.toString;
  12
  13 var Sizzle = function(selector, context, results, seed) {
  14         results = results || [];
  15         context = context || document;
  16
  17         if ( context.nodeType !== 1 && context.nodeType !== 9 )
  18                 return [];
  19
  20         if ( !selector || typeof selector !== "string" ) {
  21                 return results;
  22         }
  23
  24         var parts = [], m, set, checkSet, check, mode, extra, prune = true;
  25
  26         // Reset the position of the chunker regexp (start from head)
  27         chunker.lastIndex = 0;
  28
  29         while ( (m = chunker.exec(selector)) !== null ) {
  30                 parts.push( m[1] );
  31
  32                 if ( m[2] ) {
  33                         extra = RegExp.rightContext;
  34                         break;
  35                 }
  36         }
  37
  38         if ( parts.length > 1 && origPOS.exec( selector ) ) {
  39                 if ( parts.length === 2 && Expr.relative[ parts[0] ] ) {
  40                         set = posProcess( parts[0] + parts[1], context );
  41                 } else {
  42                         set = Expr.relative[ parts[0] ] ?
  43                                 [ context ] :
  44                                 Sizzle( parts.shift(), context );
  45
  46                         while ( parts.length ) {
  47                                 selector = parts.shift();
  48
  49                                 if ( Expr.relative[ selector ] )
  50                                         selector += parts.shift();
  51
  52                                 set = posProcess( selector, set );
  53                         }
  54                 }
  55         } else {
  56                 var ret = seed ?
  57                         { expr: parts.pop(), set: makeArray(seed) } :
  58                         Sizzle.find( parts.pop(), parts.length === 1 && context.parentNode ? context.parentNode : context, isXML(context) );
  59                 set = Sizzle.filter( ret.expr, ret.set );
  60
  61                 if ( parts.length > 0 ) {
  62                         checkSet = makeArray(set);
  63                 } else {
  64                         prune = false;
  65                 }
  66
  67                 while ( parts.length ) {
  68                         var cur = parts.pop(), pop = cur;
  69
  70                         if ( !Expr.relative[ cur ] ) {
  71                                 cur = "";
  72                         } else {
  73                                 pop = parts.pop();
  74                         }
  75
  76                         if ( pop == null ) {
  77                                 pop = context;
  78                         }
  79
  80                         Expr.relative[ cur ]( checkSet, pop, isXML(context) );
  81                 }
  82         }
  83
  84         if ( !checkSet ) {
  85                 checkSet = set;
  86         }
  87
  88         if ( !checkSet ) {
  89                 throw "Syntax error, unrecognized expression: " + (cur || selector);
  90         }
  91
  92         if ( toString.call(checkSet) === "[object Array]" ) {
  93                 if ( !prune ) {
  94                         results.push.apply( results, checkSet );
  95                 } else if ( context.nodeType === 1 ) {
  96                         for ( var i = 0; checkSet[i] != null; i++ ) {
  97                                 if ( checkSet[i] && (checkSet[i] === true || checkSet[i].nodeType === 1 && contains(context, checkSet[i])) ) {
  98                                         results.push( set[i] );
  99                                 }
 100                         }
 101                 } else {
 102                         for ( var i = 0; checkSet[i] != null; i++ ) {
 103                                 if ( checkSet[i] && checkSet[i].nodeType === 1 ) {
 104                                         results.push( set[i] );
 105                                 }
 106                         }
 107                 }
 108         } else {
 109                 makeArray( checkSet, results );
 110         }
 111
 112         if ( extra ) {
 113                 Sizzle( extra, context, results, seed );
 114
 115                 if ( sortOrder ) {
 116                         hasDuplicate = false;
 117                         results.sort(sortOrder);
 118
 119                         if ( hasDuplicate ) {
 120                                 for ( var i = 1; i < results.length; i++ ) {
 121                                         if ( results[i] === results[i-1] ) {
 122                                                 results.splice(i--, 1);
 123                                         }
 124                                 }
 125                         }
 126                 }
 127         }
 128
 129         return results;
 130 };
 131
 132 Sizzle.matches = function(expr, set){
 133         return Sizzle(expr, null, null, set);
 134 };
 135
 136 Sizzle.find = function(expr, context, isXML){
 137         var set, match;
 138
 139         if ( !expr ) {
 140                 return [];
 141         }
 142
 143         for ( var i = 0, l = Expr.order.length; i < l; i++ ) {
 144                 var type = Expr.order[i], match;
 145
 146                 if ( (match = Expr.match[ type ].exec( expr )) ) {
 147                         var left = RegExp.leftContext;
 148
 149                         if ( left.substr( left.length - 1 ) !== "\\" ) {
 150                                 match[1] = (match[1] || "").replace(/\\/g, "");
 151                                 set = Expr.find[ type ]( match, context, isXML );
 152                                 if ( set != null ) {
 153                                         expr = expr.replace( Expr.match[ type ], "" );
 154                                         break;
 155                                 }
 156                         }
 157                 }
 158         }
 159
 160         if ( !set ) {
 161                 set = context.getElementsByTagName("*");
 162         }
 163
 164         return {set: set, expr: expr};
 165 };
 166
 167 Sizzle.filter = function(expr, set, inplace, not){
 168         var old = expr, result = [], curLoop = set, match, anyFound,
 169                 isXMLFilter = set && set[0] && isXML(set[0]);
 170
 171         while ( expr && set.length ) {
 172                 for ( var type in Expr.filter ) {
 173                         if ( (match = Expr.match[ type ].exec( expr )) != null ) {
 174                                 var filter = Expr.filter[ type ], found, item;
 175                                 anyFound = false;
 176
 177                                 if ( curLoop == result ) {
 178                                         result = [];
 179                                 }
 180
 181                                 if ( Expr.preFilter[ type ] ) {
 182                                         match = Expr.preFilter[ type ]( match, curLoop, inplace, result, not, isXMLFilter );
 183
 184                                         if ( !match ) {
 185                                                 anyFound = found = true;
 186                                         } else if ( match === true ) {
 187                                                 continue;
 188                                         }
 189                                 }
 190
 191                                 if ( match ) {
 192                                         for ( var i = 0; (item = curLoop[i]) != null; i++ ) {
 193                                                 if ( item ) {
 194                                                         found = filter( item, match, i, curLoop );
 195                                                         var pass = not ^ !!found;
 196
 197                                                         if ( inplace && found != null ) {
 198                                                                 if ( pass ) {
 199                                                                         anyFound = true;
 200                                                                 } else {
 201                                                                         curLoop[i] = false;
 202                                                                 }
 203                                                         } else if ( pass ) {
 204                                                                 result.push( item );
 205                                                                 anyFound = true;
 206                                                         }
 207                                                 }
 208                                         }
 209                                 }
 210
 211                                 if ( found !== undefined ) {
 212                                         if ( !inplace ) {
 213                                                 curLoop = result;
 214                                         }
 215
 216                                         expr = expr.replace( Expr.match[ type ], "" );
 217
 218                                         if ( !anyFound ) {
 219                                                 return [];
 220                                         }
 221
 222                                         break;
 223                                 }
 224                         }
 225                 }
 226
 227                 // Improper expression
 228                 if ( expr == old ) {
 229                         if ( anyFound == null ) {
 230                                 throw "Syntax error, unrecognized expression: " + expr;
 231                         } else {
 232                                 break;
 233                         }
 234                 }
 235
 236                 old = expr;
 237         }
 238
 239         return curLoop;
 240 };
 241
 242 var Expr = Sizzle.selectors = {
 243         order: [ "ID", "NAME", "TAG" ],
 244         match: {
 245                 ID: /#((?:[\w\u00c0-\uFFFF_-]|\\.)+)/,
 246                 CLASS: /\.((?:[\w\u00c0-\uFFFF_-]|\\.)+)/,
 247                 NAME: /\[name=['"]*((?:[\w\u00c0-\uFFFF_-]|\\.)+)['"]*\]/,
 248                 ATTR: /\[\s*((?:[\w\u00c0-\uFFFF_-]|\\.)+)\s*(?:(\S?=)\s*(['"]*)(.*?)\3|)\s*\]/,
 249                 TAG: /^((?:[\w\u00c0-\uFFFF\*_-]|\\.)+)/,
 250                 CHILD: /:(only|nth|last|first)-child(?:\((even|odd|[\dn+-]*)\))?/,
 251                 POS: /:(nth|eq|gt|lt|first|last|even|odd)(?:\((\d*)\))?(?=[^-]|$)/,
 252                 PSEUDO: /:((?:[\w\u00c0-\uFFFF_-]|\\.)+)(?:\((['"]*)((?:\([^\)]+\)|[^\2\(\)]*)+)\2\))?/
 253         },
 254         attrMap: {
 255                 "class": "className",
 256                 "for": "htmlFor"
 257         },
 258         attrHandle: {
 259                 href: function(elem){
 260                         return elem.getAttribute("href");
 261                 }
 262         },
 263         relative: {
 264                 "+": function(checkSet, part, isXML){
 265                         var isPartStr = typeof part === "string",
 266                                 isTag = isPartStr && !/\W/.test(part),
 267                                 isPartStrNotTag = isPartStr && !isTag;
 268
 269                         if ( isTag && !isXML ) {
 270                                 part = part.toUpperCase();
 271                         }
 272
 273                         for ( var i = 0, l = checkSet.length, elem; i < l; i++ ) {
 274                                 if ( (elem = checkSet[i]) ) {
 275                                         while ( (elem = elem.previousSibling) && elem.nodeType !== 1 ) {}
 276
 277                                         checkSet[i] = isPartStrNotTag || elem && elem.nodeName === part ?
 278                                                 elem || false :
 279                                                 elem === part;
 280                                 }
 281                         }
 282
 283                         if ( isPartStrNotTag ) {
 284                                 Sizzle.filter( part, checkSet, true );
 285                         }
 286                 },
 287                 ">": function(checkSet, part, isXML){
 288                         var isPartStr = typeof part === "string";
 289
 290                         if ( isPartStr && !/\W/.test(part) ) {
 291                                 part = isXML ? part : part.toUpperCase();
 292
 293                                 for ( var i = 0, l = checkSet.length; i < l; i++ ) {
 294                                         var elem = checkSet[i];
 295                                         if ( elem ) {
 296                                                 var parent = elem.parentNode;
 297                                                 checkSet[i] = parent.nodeName === part ? parent : false;
 298                                         }
 299                                 }
 300                         } else {
 301                                 for ( var i = 0, l = checkSet.length; i < l; i++ ) {
 302                                         var elem = checkSet[i];
 303                                         if ( elem ) {
 304                                                 checkSet[i] = isPartStr ?
 305                                                         elem.parentNode :
 306                                                         elem.parentNode === part;
 307                                         }
 308                                 }
 309
 310                                 if ( isPartStr ) {
 311                                         Sizzle.filter( part, checkSet, true );
 312                                 }
 313                         }
 314                 },
 315                 "": function(checkSet, part, isXML){
 316                         var doneName = done++, checkFn = dirCheck;
 317
 318                         if ( !part.match(/\W/) ) {
 319                                 var nodeCheck = part = isXML ? part : part.toUpperCase();
 320                                 checkFn = dirNodeCheck;
 321                         }
 322
 323                         checkFn("parentNode", part, doneName, checkSet, nodeCheck, isXML);
 324                 },
 325                 "~": function(checkSet, part, isXML){
 326                         var doneName = done++, checkFn = dirCheck;
 327
 328                         if ( typeof part === "string" && !part.match(/\W/) ) {
 329                                 var nodeCheck = part = isXML ? part : part.toUpperCase();
 330                                 checkFn = dirNodeCheck;
 331                         }
 332
 333                         checkFn("previousSibling", part, doneName, checkSet, nodeCheck, isXML);
 334                 }
 335         },
 336         find: {
 337                 ID: function(match, context, isXML){
 338                         if ( typeof context.getElementById !== "undefined" && !isXML ) {
 339                                 var m = context.getElementById(match[1]);
 340                                 return m ? [m] : [];
 341                         }
 342                 },
 343                 NAME: function(match, context, isXML){
 344                         if ( typeof context.getElementsByName !== "undefined" ) {
 345                                 var ret = [], results = context.getElementsByName(match[1]);
 346
 347                                 for ( var i = 0, l = results.length; i < l; i++ ) {
 348                                         if ( results[i].getAttribute("name") === match[1] ) {
 349                                                 ret.push( results[i] );
 350                                         }
 351                                 }
 352
 353                                 return ret.length === 0 ? null : ret;
 354                         }
 355                 },
 356                 TAG: function(match, context){
 357                         return context.getElementsByTagName(match[1]);
 358                 }
 359         },
 360         preFilter: {
 361                 CLASS: function(match, curLoop, inplace, result, not, isXML){
 362                         match = " " + match[1].replace(/\\/g, "") + " ";
 363
 364                         if ( isXML ) {
 365                                 return match;
 366                         }
 367
 368                         for ( var i = 0, elem; (elem = curLoop[i]) != null; i++ ) {
 369                                 if ( elem ) {
 370                                         if ( not ^ (elem.className && (" " + elem.className + " ").indexOf(match) >= 0) ) {
 371                                                 if ( !inplace )
 372                                                         result.push( elem );
 373                                         } else if ( inplace ) {
 374                                                 curLoop[i] = false;
 375                                         }
 376                                 }
 377                         }
 378
 379                         return false;
 380                 },
 381                 ID: function(match){
 382                         return match[1].replace(/\\/g, "");
 383                 },
 384                 TAG: function(match, curLoop){
 385                         for ( var i = 0; curLoop[i] === false; i++ ){}
 386                         return curLoop[i] && isXML(curLoop[i]) ? match[1] : match[1].toUpperCase();
 387                 },
 388                 CHILD: function(match){
 389                         if ( match[1] == "nth" ) {
 390                                 // parse equations like 'even', 'odd', '5', '2n', '3n+2', '4n-1', '-n+6'
 391                                 var test = /(-?)(\d*)n((?:\+|-)?\d*)/.exec(
 392                                         match[2] == "even" && "2n" || match[2] == "odd" && "2n+1" ||
 393                                         !/\D/.test( match[2] ) && "0n+" + match[2] || match[2]);
 394
 395                                 // calculate the numbers (first)n+(last) including if they are negative
 396                                 match[2] = (test[1] + (test[2] || 1)) - 0;
 397                                 match[3] = test[3] - 0;
 398                         }
 399
 400                         // TODO: Move to normal caching system
 401                         match[0] = done++;
 402
 403                         return match;
 404                 },
 405                 ATTR: function(match, curLoop, inplace, result, not, isXML){
 406                         var name = match[1].replace(/\\/g, "");
 407
 408                         if ( !isXML && Expr.attrMap[name] ) {
 409                                 match[1] = Expr.attrMap[name];
 410                         }
 411
 412                         if ( match[2] === "~=" ) {
 413                                 match[4] = " " + match[4] + " ";
 414                         }
 415
 416                         return match;
 417                 },
 418                 PSEUDO: function(match, curLoop, inplace, result, not){
 419                         if ( match[1] === "not" ) {
 420                                 // If we're dealing with a complex expression, or a simple one
 421                                 if ( match[3].match(chunker).length > 1 || /^\w/.test(match[3]) ) {
 422                                         match[3] = Sizzle(match[3], null, null, curLoop);
 423                                 } else {
 424                                         var ret = Sizzle.filter(match[3], curLoop, inplace, true ^ not);
 425                                         if ( !inplace ) {
 426                                                 result.push.apply( result, ret );
 427                                         }
 428                                         return false;
 429                                 }
 430                         } else if ( Expr.match.POS.test( match[0] ) || Expr.match.CHILD.test( match[0] ) ) {
 431                                 return true;
 432                         }
 433
 434                         return match;
 435                 },
 436                 POS: function(match){
 437                         match.unshift( true );
 438                         return match;
 439                 }
 440         },
 441         filters: {
 442                 enabled: function(elem){
 443                         return elem.disabled === false && elem.type !== "hidden";
 444                 },
 445                 disabled: function(elem){
 446                         return elem.disabled === true;
 447                 },
 448                 checked: function(elem){
 449                         return elem.checked === true;
 450                 },
 451                 selected: function(elem){
 452                         // Accessing this property makes selected-by-default
 453                         // options in Safari work properly
 454                         elem.parentNode.selectedIndex;
 455                         return elem.selected === true;
 456                 },
 457                 parent: function(elem){
 458                         return !!elem.firstChild;
 459                 },
 460                 empty: function(elem){
 461                         return !elem.firstChild;
 462                 },
 463                 has: function(elem, i, match){
 464                         return !!Sizzle( match[3], elem ).length;
 465                 },
 466                 header: function(elem){
 467                         return /h\d/i.test( elem.nodeName );
 468                 },
 469                 text: function(elem){
 470                         return "text" === elem.type;
 471                 },
 472                 radio: function(elem){
 473                         return "radio" === elem.type;
 474                 },
 475                 checkbox: function(elem){
 476                         return "checkbox" === elem.type;
 477                 },
 478                 file: function(elem){
 479                         return "file" === elem.type;
 480                 },
 481                 password: function(elem){
 482                         return "password" === elem.type;
 483                 },
 484                 submit: function(elem){
 485                         return "submit" === elem.type;
 486                 },
 487                 image: function(elem){
 488                         return "image" === elem.type;
 489                 },
 490                 reset: function(elem){
 491                         return "reset" === elem.type;
 492                 },
 493                 button: function(elem){
 494                         return "button" === elem.type || elem.nodeName.toUpperCase() === "BUTTON";
 495                 },
 496                 input: function(elem){
 497                         return /input|select|textarea|button/i.test(elem.nodeName);
 498                 }
 499         },
 500         setFilters: {
 501                 first: function(elem, i){
 502                         return i === 0;
 503                 },
 504                 last: function(elem, i, match, array){
 505                         return i === array.length - 1;
 506                 },
 507                 even: function(elem, i){
 508                         return i % 2 === 0;
 509                 },
 510                 odd: function(elem, i){
 511                         return i % 2 === 1;
 512                 },
 513                 lt: function(elem, i, match){
 514                         return i < match[3] - 0;
 515                 },
 516                 gt: function(elem, i, match){
 517                         return i > match[3] - 0;
 518                 },
 519                 nth: function(elem, i, match){
 520                         return match[3] - 0 == i;
 521                 },
 522                 eq: function(elem, i, match){
 523                         return match[3] - 0 == i;
 524                 }
 525         },
 526         filter: {
 527                 PSEUDO: function(elem, match, i, array){
 528                         var name = match[1], filter = Expr.filters[ name ];
 529
 530                         if ( filter ) {
 531                                 return filter( elem, i, match, array );
 532                         } else if ( name === "contains" ) {
 533                                 return (elem.textContent || elem.innerText || "").indexOf(match[3]) >= 0;
 534                         } else if ( name === "not" ) {
 535                                 var not = match[3];
 536
 537                                 for ( var i = 0, l = not.length; i < l; i++ ) {
 538                                         if ( not[i] === elem ) {
 539                                                 return false;
 540                                         }
 541                                 }
 542
 543                                 return true;
 544                         }
 545                 },
 546                 CHILD: function(elem, match){
 547                         var type = match[1], node = elem;
 548                         switch (type) {
 549                                 case 'only':
 550                                 case 'first':
 551                                         while (node = node.previousSibling)  {
 552                                                 if ( node.nodeType === 1 ) return false;
 553                                         }
 554                                         if ( type == 'first') return true;
 555                                         node = elem;
 556                                 case 'last':
 557                                         while (node = node.nextSibling)  {
 558                                                 if ( node.nodeType === 1 ) return false;
 559                                         }
 560                                         return true;
 561                                 case 'nth':
 562                                         var first = match[2], last = match[3];
 563
 564                                         if ( first == 1 && last == 0 ) {
 565                                                 return true;
 566                                         }
 567
 568                                         var doneName = match[0],
 569                                                 parent = elem.parentNode;
 570
 571                                         if ( parent && (parent.sizcache !== doneName || !elem.nodeIndex) ) {
 572                                                 var count = 0;
 573                                                 for ( node = parent.firstChild; node; node = node.nextSibling ) {
 574                                                         if ( node.nodeType === 1 ) {
 575                                                                 node.nodeIndex = ++count;
 576                                                         }
 577                                                 }
 578                                                 parent.sizcache = doneName;
 579                                         }
 580
 581                                         var diff = elem.nodeIndex - last;
 582                                         if ( first == 0 ) {
 583                                                 return diff == 0;
 584                                         } else {
 585                                                 return ( diff % first == 0 && diff / first >= 0 );
 586                                         }
 587                         }
 588                 },
 589                 ID: function(elem, match){
 590                         return elem.nodeType === 1 && elem.getAttribute("id") === match;
 591                 },
 592                 TAG: function(elem, match){
 593                         return (match === "*" && elem.nodeType === 1) || elem.nodeName === match;
 594                 },
 595                 CLASS: function(elem, match){
 596                         return (" " + (elem.className || elem.getAttribute("class")) + " ")
 597                                 .indexOf( match ) > -1;
 598                 },
 599                 ATTR: function(elem, match){
 600                         var name = match[1],
 601                                 result = Expr.attrHandle[ name ] ?
 602                                         Expr.attrHandle[ name ]( elem ) :
 603                                         elem[ name ] != null ?
 604                                                 elem[ name ] :
 605                                                 elem.getAttribute( name ),
 606                                 value = result + "",
 607                                 type = match[2],
 608                                 check = match[4];
 609
 610                         return result == null ?
 611                                 type === "!=" :
 612                                 type === "=" ?
 613                                 value === check :
 614                                 type === "*=" ?
 615                                 value.indexOf(check) >= 0 :
 616                                 type === "~=" ?
 617                                 (" " + value + " ").indexOf(check) >= 0 :
 618                                 !check ?
 619                                 value && result !== false :
 620                                 type === "!=" ?
 621                                 value != check :
 622                                 type === "^=" ?
 623                                 value.indexOf(check) === 0 :
 624                                 type === "$=" ?
 625                                 value.substr(value.length - check.length) === check :
 626                                 type === "|=" ?
 627                                 value === check || value.substr(0, check.length + 1) === check + "-" :
 628                                 false;
 629                 },
 630                 POS: function(elem, match, i, array){
 631                         var name = match[2], filter = Expr.setFilters[ name ];
 632
 633                         if ( filter ) {
 634                                 return filter( elem, i, match, array );
 635                         }
 636                 }
 637         }
 638 };
 639
 640 var origPOS = Expr.match.POS;
 641
 642 for ( var type in Expr.match ) {
 643         Expr.match[ type ] = RegExp( Expr.match[ type ].source + /(?![^\[]*\])(?![^\(]*\))/.source );
 644 }
 645
 646 var makeArray = function(array, results) {
 647         array = Array.prototype.slice.call( array );
 648
 649         if ( results ) {
 650                 results.push.apply( results, array );
 651                 return results;
 652         }
 653
 654         return array;
 655 };
 656
 657 // Perform a simple check to determine if the browser is capable of
 658 // converting a NodeList to an array using builtin methods.
 659 try {
 660         Array.prototype.slice.call( document.documentElement.childNodes );
 661
 662 // Provide a fallback method if it does not work
 663 } catch(e){
 664         makeArray = function(array, results) {
 665                 var ret = results || [];
 666
 667                 if ( toString.call(array) === "[object Array]" ) {
 668                         Array.prototype.push.apply( ret, array );
 669                 } else {
 670                         if ( typeof array.length === "number" ) {
 671                                 for ( var i = 0, l = array.length; i < l; i++ ) {
 672                                         ret.push( array[i] );
 673                                 }
 674                         } else {
 675                                 for ( var i = 0; array[i]; i++ ) {
 676                                         ret.push( array[i] );
 677                                 }
 678                         }
 679                 }
 680
 681                 return ret;
 682         };
 683 }
 684
 685 var sortOrder;
 686
 687 if ( Array.prototype.indexOf ) {
 688         var indexOf = Array.prototype.indexOf,
 689                 allSort = document.getElementsByTagName("*");
 690
 691         sortOrder = function( a, b ) {
 692                 var ret = indexOf.call( allSort, a ) - indexOf.call( allSort, b );
 693                 if ( ret === 0 ) {
 694                         hasDuplicate = true;
 695                 }
 696                 return ret;
 697         };
 698 } else if ( document.documentElement.sourceIndex === 1 ) {
 699         sortOrder = function( a, b ) {
 700                 var ret = a.sourceIndex - b.sourceIndex;
 701                 if ( ret === 0 ) {
 702                         hasDuplicate = true;
 703                 }
 704                 return ret;
 705         };
 706 }
 707
 708 // Check to see if the browser returns elements by name when
 709 // querying by getElementById (and provide a workaround)
 710 (function(){
 711         // We're going to inject a fake input element with a specified name
 712         var form = document.createElement("form"),
 713                 id = "script" + (new Date).getTime();
 714         form.innerHTML = "<input name='" + id + "'/>";
 715
 716         // Inject it into the root element, check its status, and remove it quickly
 717         var root = document.documentElement;
 718         root.insertBefore( form, root.firstChild );
 719
 720         // The workaround has to do additional checks after a getElementById
 721         // Which slows things down for other browsers (hence the branching)
 722         if ( !!document.getElementById( id ) ) {
 723                 Expr.find.ID = function(match, context, isXML){
 724                         if ( typeof context.getElementById !== "undefined" && !isXML ) {
 725                                 var m = context.getElementById(match[1]);
 726                                 return m ? m.id === match[1] || typeof m.getAttributeNode !== "undefined" && m.getAttributeNode("id").nodeValue === match[1] ? [m] : undefined : [];
 727                         }
 728                 };
 729
 730                 Expr.filter.ID = function(elem, match){
 731                         var node = typeof elem.getAttributeNode !== "undefined" && elem.getAttributeNode("id");
 732                         return elem.nodeType === 1 && node && node.nodeValue === match;
 733                 };
 734         }
 735
 736         root.removeChild( form );
 737 })();
 738
 739 (function(){
 740         // Check to see if the browser returns only elements
 741         // when doing getElementsByTagName("*")
 742
 743         // Create a fake element
 744         var div = document.createElement("div");
 745         div.appendChild( document.createComment("") );
 746
 747         // Make sure no comments are found
 748         if ( div.getElementsByTagName("*").length > 0 ) {
 749                 Expr.find.TAG = function(match, context){
 750                         var results = context.getElementsByTagName(match[1]);
 751
 752                         // Filter out possible comments
 753                         if ( match[1] === "*" ) {
 754                                 var tmp = [];
 755
 756                                 for ( var i = 0; results[i]; i++ ) {
 757                                         if ( results[i].nodeType === 1 ) {
 758                                                 tmp.push( results[i] );
 759                                         }
 760                                 }
 761
 762                                 results = tmp;
 763                         }
 764
 765                         return results;
 766                 };
 767         }
 768
 769         // Check to see if an attribute returns normalized href attributes
 770         div.innerHTML = "<a href='#'></a>";
 771         if ( div.firstChild && typeof div.firstChild.getAttribute !== "undefined" &&
 772                         div.firstChild.getAttribute("href") !== "#" ) {
 773                 Expr.attrHandle.href = function(elem){
 774                         return elem.getAttribute("href", 2);
 775                 };
 776         }
 777 })();
 778
 779 if ( document.querySelectorAll ) (function(){
 780         var oldSizzle = Sizzle, div = document.createElement("div");
 781         div.innerHTML = "<p class='TEST'></p>";
 782
 783         // Safari can't handle uppercase or unicode characters when
 784         // in quirks mode.
 785         if ( div.querySelectorAll && div.querySelectorAll(".TEST").length === 0 ) {
 786                 return;
 787         }
 788
 789         Sizzle = function(query, context, extra, seed){
 790                 context = context || document;
 791
 792                 // Only use querySelectorAll on non-XML documents
 793                 // (ID selectors don't work in non-HTML documents)
 794                 if ( !seed && context.nodeType === 9 && !isXML(context) ) {
 795                         try {
 796                                 return makeArray( context.querySelectorAll(query), extra );
 797                         } catch(e){}
 798                 }
 799
 800                 return oldSizzle(query, context, extra, seed);
 801         };
 802
 803         Sizzle.find = oldSizzle.find;
 804         Sizzle.filter = oldSizzle.filter;
 805         Sizzle.selectors = oldSizzle.selectors;
 806         Sizzle.matches = oldSizzle.matches;
 807 })();
 808
 809 if ( document.getElementsByClassName && document.documentElement.getElementsByClassName ) (function(){
 810         var div = document.createElement("div");
 811         div.innerHTML = "<div class='test e'></div><div class='test'></div>";
 812
 813         // Opera can't find a second classname (in 9.6)
 814         if ( div.getElementsByClassName("e").length === 0 )
 815                 return;
 816
 817         // Safari caches class attributes, doesn't catch changes (in 3.2)
 818         div.lastChild.className = "e";
 819
 820         if ( div.getElementsByClassName("e").length === 1 )
 821                 return;
 822
 823         Expr.order.splice(1, 0, "CLASS");
 824         Expr.find.CLASS = function(match, context, isXML) {
 825                 if ( typeof context.getElementsByClassName !== "undefined" && !isXML ) {
 826                         return context.getElementsByClassName(match[1]);
 827                 }
 828         };
 829 })();
 830
 831 function dirNodeCheck( dir, cur, doneName, checkSet, nodeCheck, isXML ) {
 832         var sibDir = dir == "previousSibling" && !isXML;
 833         for ( var i = 0, l = checkSet.length; i < l; i++ ) {
 834                 var elem = checkSet[i];
 835                 if ( elem ) {
 836                         if ( sibDir && elem.nodeType === 1 ){
 837                                 elem.sizcache = doneName;
 838                                 elem.sizset = i;
 839                         }
 840                         elem = elem[dir];
 841                         var match = false;
 842
 843                         while ( elem ) {
 844                                 if ( elem.sizcache === doneName ) {
 845                                         match = checkSet[elem.sizset];
 846                                         break;
 847                                 }
 848
 849                                 if ( elem.nodeType === 1 && !isXML ){
 850                                         elem.sizcache = doneName;
 851                                         elem.sizset = i;
 852                                 }
 853
 854                                 if ( elem.nodeName === cur ) {
 855                                         match = elem;
 856                                         break;
 857                                 }
 858
 859                                 elem = elem[dir];
 860                         }
 861
 862                         checkSet[i] = match;
 863                 }
 864         }
 865 }
 866
 867 function dirCheck( dir, cur, doneName, checkSet, nodeCheck, isXML ) {
 868         var sibDir = dir == "previousSibling" && !isXML;
 869         for ( var i = 0, l = checkSet.length; i < l; i++ ) {
 870                 var elem = checkSet[i];
 871                 if ( elem ) {
 872                         if ( sibDir && elem.nodeType === 1 ) {
 873                                 elem.sizcache = doneName;
 874                                 elem.sizset = i;
 875                         }
 876                         elem = elem[dir];
 877                         var match = false;
 878
 879                         while ( elem ) {
 880                                 if ( elem.sizcache === doneName ) {
 881                                         match = checkSet[elem.sizset];
 882                                         break;
 883                                 }
 884
 885                                 if ( elem.nodeType === 1 ) {
 886                                         if ( !isXML ) {
 887                                                 elem.sizcache = doneName;
 888                                                 elem.sizset = i;
 889                                         }
 890                                         if ( typeof cur !== "string" ) {
 891                                                 if ( elem === cur ) {
 892                                                         match = true;
 893                                                         break;
 894                                                 }
 895
 896                                         } else if ( Sizzle.filter( cur, [elem] ).length > 0 ) {
 897                                                 match = elem;
 898                                                 break;
 899                                         }
 900                                 }
 901
 902                                 elem = elem[dir];
 903                         }
 904
 905                         checkSet[i] = match;
 906                 }
 907         }
 908 }
 909
 910 var contains = document.compareDocumentPosition ?  function(a, b){
 911         return a.compareDocumentPosition(b) & 16;
 912 } : function(a, b){
 913         return a !== b && (a.contains ? a.contains(b) : true);
 914 };
 915
 916 var isXML = function(elem){
 917         return elem.nodeType === 9 && elem.documentElement.nodeName !== "HTML" ||
 918                 !!elem.ownerDocument && isXML( elem.ownerDocument );
 919 };
 920
 921 var posProcess = function(selector, context){
 922         var tmpSet = [], later = "", match,
 923                 root = context.nodeType ? [context] : context;
 924
 925         // Position selectors must be done after the filter
 926         // And so must :not(positional) so we move all PSEUDOs to the end
 927         while ( (match = Expr.match.PSEUDO.exec( selector )) ) {
 928                 later += match[0];
 929                 selector = selector.replace( Expr.match.PSEUDO, "" );
 930         }
 931
 932         selector = Expr.relative[selector] ? selector + "*" : selector;
 933
 934         for ( var i = 0, l = root.length; i < l; i++ ) {
 935                 Sizzle( selector, root[i], tmpSet );
 936         }
 937
 938         return Sizzle.filter( later, tmpSet );
 939 };
 940
 941 // EXPOSE
 942 jQuery.find = Sizzle;
 943 jQuery.filter = Sizzle.filter;
 944 jQuery.expr = Sizzle.selectors;
 945 jQuery.expr[":"] = jQuery.expr.filters;
 946
 947 Sizzle.selectors.filters.hidden = function(elem){
 948         return elem.offsetWidth === 0 || elem.offsetHeight === 0;
 949 };
 950
 951 Sizzle.selectors.filters.visible = function(elem){
 952         return elem.offsetWidth > 0 || elem.offsetHeight > 0;
 953 };
 954
 955 Sizzle.selectors.filters.animated = function(elem){
 956         return jQuery.grep(jQuery.timers, function(fn){
 957                 return elem === fn.elem;
 958         }).length;
 959 };
 960
 961 jQuery.multiFilter = function( expr, elems, not ) {
 962         if ( not ) {
 963                 expr = ":not(" + expr + ")";
 964         }
 965
 966         return Sizzle.matches(expr, elems);
 967 };
 968
 969 jQuery.dir = function( elem, dir ){
 970         var matched = [], cur = elem[dir];
 971         while ( cur && cur != document ) {
 972                 if ( cur.nodeType == 1 )
 973                         matched.push( cur );
 974                 cur = cur[dir];
 975         }
 976         return matched;
 977 };
 978
 979 jQuery.nth = function(cur, result, dir, elem){
 980         result = result || 1;
 981         var num = 0;
 982
 983         for ( ; cur; cur = cur[dir] )
 984                 if ( cur.nodeType == 1 && ++num == result )
 985                         break;
 986
 987         return cur;
 988 };
 989
 990 jQuery.sibling = function(n, elem){
 991         var r = [];
 992
 993         for ( ; n; n = n.nextSibling ) {
 994                 if ( n.nodeType == 1 && n != elem )
 995                         r.push( n );
 996         }
 997
 998         return r;
 999 };
1000
1001 return;
1002
1003 window.Sizzle = Sizzle;
1004
1005 })();