src/selector.js

   1 /*!
   2  * Sizzle CSS Selector Engine - v1.0
   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         var origContext = context = context || document;
  16
  17         if ( context.nodeType !== 1 && context.nodeType !== 9 ) {
  18                 return [];
  19         }
  20
  21         if ( !selector || typeof selector !== "string" ) {
  22                 return results;
  23         }
  24
  25         var parts = [], m, set, checkSet, check, mode, extra, prune = true, contextXML = isXML(context);
  26
  27         // Reset the position of the chunker regexp (start from head)
  28         chunker.lastIndex = 0;
  29
  30         while ( (m = chunker.exec(selector)) !== null ) {
  31                 parts.push( m[1] );
  32
  33                 if ( m[2] ) {
  34                         extra = RegExp.rightContext;
  35                         break;
  36                 }
  37         }
  38
  39         if ( parts.length > 1 && origPOS.exec( selector ) ) {
  40                 if ( parts.length === 2 && Expr.relative[ parts[0] ] ) {
  41                         set = posProcess( parts[0] + parts[1], context );
  42                 } else {
  43                         set = Expr.relative[ parts[0] ] ?
  44                                 [ context ] :
  45                                 Sizzle( parts.shift(), context );
  46
  47                         while ( parts.length ) {
  48                                 selector = parts.shift();
  49
  50                                 if ( Expr.relative[ selector ] )
  51                                         selector += parts.shift();
  52
  53                                 set = posProcess( selector, set );
  54                         }
  55                 }
  56         } else {
  57                 // Take a shortcut and set the context if the root selector is an ID
  58                 // (but not if it'll be faster if the inner selector is an ID)
  59                 if ( !seed && parts.length > 1 && context.nodeType === 9 && !contextXML &&
  60                                 Expr.match.ID.test(parts[0]) && !Expr.match.ID.test(parts[parts.length - 1]) ) {
  61                         var ret = Sizzle.find( parts.shift(), context, contextXML );
  62                         context = ret.expr ? Sizzle.filter( ret.expr, ret.set )[0] : ret.set[0];
  63                 }
  64
  65                 if ( context ) {
  66                         var ret = seed ?
  67                                 { expr: parts.pop(), set: makeArray(seed) } :
  68                                 Sizzle.find( parts.pop(), parts.length === 1 && (parts[0] === "~" || parts[0] === "+") && context.parentNode ? context.parentNode : context, contextXML );
  69                         set = ret.expr ? Sizzle.filter( ret.expr, ret.set ) : ret.set;
  70
  71                         if ( parts.length > 0 ) {
  72                                 checkSet = makeArray(set);
  73                         } else {
  74                                 prune = false;
  75                         }
  76
  77                         while ( parts.length ) {
  78                                 var cur = parts.pop(), pop = cur;
  79
  80                                 if ( !Expr.relative[ cur ] ) {
  81                                         cur = "";
  82                                 } else {
  83                                         pop = parts.pop();
  84                                 }
  85
  86                                 if ( pop == null ) {
  87                                         pop = context;
  88                                 }
  89
  90                                 Expr.relative[ cur ]( checkSet, pop, contextXML );
  91                         }
  92                 } else {
  93                         checkSet = parts = [];
  94                 }
  95         }
  96
  97         if ( !checkSet ) {
  98                 checkSet = set;
  99         }
 100
 101         if ( !checkSet ) {
 102                 throw "Syntax error, unrecognized expression: " + (cur || selector);
 103         }
 104
 105         if ( toString.call(checkSet) === "[object Array]" ) {
 106                 if ( !prune ) {
 107                         results.push.apply( results, checkSet );
 108                 } else if ( context && context.nodeType === 1 ) {
 109                         for ( var i = 0; checkSet[i] != null; i++ ) {
 110                                 if ( checkSet[i] && (checkSet[i] === true || checkSet[i].nodeType === 1 && contains(context, checkSet[i])) ) {
 111                                         results.push( set[i] );
 112                                 }
 113                         }
 114                 } else {
 115                         for ( var i = 0; checkSet[i] != null; i++ ) {
 116                                 if ( checkSet[i] && checkSet[i].nodeType === 1 ) {
 117                                         results.push( set[i] );
 118                                 }
 119                         }
 120                 }
 121         } else {
 122                 makeArray( checkSet, results );
 123         }
 124
 125         if ( extra ) {
 126                 Sizzle( extra, origContext, results, seed );
 127                 Sizzle.uniqueSort( results );
 128         }
 129
 130         return results;
 131 };
 132
 133 Sizzle.uniqueSort = function(results){
 134         if ( sortOrder ) {
 135                 hasDuplicate = false;
 136                 results.sort(sortOrder);
 137
 138                 if ( hasDuplicate ) {
 139                         for ( var i = 1; i < results.length; i++ ) {
 140                                 if ( results[i] === results[i-1] ) {
 141                                         results.splice(i--, 1);
 142                                 }
 143                         }
 144                 }
 145         }
 146 };
 147
 148 Sizzle.matches = function(expr, set){
 149         return Sizzle(expr, null, null, set);
 150 };
 151
 152 Sizzle.find = function(expr, context, isXML){
 153         var set, match;
 154
 155         if ( !expr ) {
 156                 return [];
 157         }
 158
 159         for ( var i = 0, l = Expr.order.length; i < l; i++ ) {
 160                 var type = Expr.order[i], match;
 161
 162                 if ( (match = Expr.match[ type ].exec( expr )) ) {
 163                         var left = RegExp.leftContext;
 164
 165                         if ( left.substr( left.length - 1 ) !== "\\" ) {
 166                                 match[1] = (match[1] || "").replace(/\\/g, "");
 167                                 set = Expr.find[ type ]( match, context, isXML );
 168                                 if ( set != null ) {
 169                                         expr = expr.replace( Expr.match[ type ], "" );
 170                                         break;
 171                                 }
 172                         }
 173                 }
 174         }
 175
 176         if ( !set ) {
 177                 set = context.getElementsByTagName("*");
 178         }
 179
 180         return {set: set, expr: expr};
 181 };
 182
 183 Sizzle.filter = function(expr, set, inplace, not){
 184         var old = expr, result = [], curLoop = set, match, anyFound,
 185                 isXMLFilter = set && set[0] && isXML(set[0]);
 186
 187         while ( expr && set.length ) {
 188                 for ( var type in Expr.filter ) {
 189                         if ( (match = Expr.match[ type ].exec( expr )) != null ) {
 190                                 var filter = Expr.filter[ type ], found, item;
 191                                 anyFound = false;
 192
 193                                 if ( curLoop == result ) {
 194                                         result = [];
 195                                 }
 196
 197                                 if ( Expr.preFilter[ type ] ) {
 198                                         match = Expr.preFilter[ type ]( match, curLoop, inplace, result, not, isXMLFilter );
 199
 200                                         if ( !match ) {
 201                                                 anyFound = found = true;
 202                                         } else if ( match === true ) {
 203                                                 continue;
 204                                         }
 205                                 }
 206
 207                                 if ( match ) {
 208                                         for ( var i = 0; (item = curLoop[i]) != null; i++ ) {
 209                                                 if ( item ) {
 210                                                         found = filter( item, match, i, curLoop );
 211                                                         var pass = not ^ !!found;
 212
 213                                                         if ( inplace && found != null ) {
 214                                                                 if ( pass ) {
 215                                                                         anyFound = true;
 216                                                                 } else {
 217                                                                         curLoop[i] = false;
 218                                                                 }
 219                                                         } else if ( pass ) {
 220                                                                 result.push( item );
 221                                                                 anyFound = true;
 222                                                         }
 223                                                 }
 224                                         }
 225                                 }
 226
 227                                 if ( found !== undefined ) {
 228                                         if ( !inplace ) {
 229                                                 curLoop = result;
 230                                         }
 231
 232                                         expr = expr.replace( Expr.match[ type ], "" );
 233
 234                                         if ( !anyFound ) {
 235                                                 return [];
 236                                         }
 237
 238                                         break;
 239                                 }
 240                         }
 241                 }
 242
 243                 // Improper expression
 244                 if ( expr == old ) {
 245                         if ( anyFound == null ) {
 246                                 throw "Syntax error, unrecognized expression: " + expr;
 247                         } else {
 248                                 break;
 249                         }
 250                 }
 251
 252                 old = expr;
 253         }
 254
 255         return curLoop;
 256 };
 257
 258 var Expr = Sizzle.selectors = {
 259         order: [ "ID", "NAME", "TAG" ],
 260         match: {
 261                 ID: /#((?:[\w\u00c0-\uFFFF_-]|\\.)+)/,
 262                 CLASS: /\.((?:[\w\u00c0-\uFFFF_-]|\\.)+)/,
 263                 NAME: /\[name=['"]*((?:[\w\u00c0-\uFFFF_-]|\\.)+)['"]*\]/,
 264                 ATTR: /\[\s*((?:[\w\u00c0-\uFFFF_-]|\\.)+)\s*(?:(\S?=)\s*(['"]*)(.*?)\3|)\s*\]/,
 265                 TAG: /^((?:[\w\u00c0-\uFFFF\*_-]|\\.)+)/,
 266                 CHILD: /:(only|nth|last|first)-child(?:\((even|odd|[\dn+-]*)\))?/,
 267                 POS: /:(nth|eq|gt|lt|first|last|even|odd)(?:\((\d*)\))?(?=[^-]|$)/,
 268                 PSEUDO: /:((?:[\w\u00c0-\uFFFF_-]|\\.)+)(?:\((['"]*)((?:\([^\)]+\)|[^\2\(\)]*)+)\2\))?/
 269         },
 270         attrMap: {
 271                 "class": "className",
 272                 "for": "htmlFor"
 273         },
 274         attrHandle: {
 275                 href: function(elem){
 276                         return elem.getAttribute("href");
 277                 }
 278         },
 279         relative: {
 280                 "+": function(checkSet, part, isXML){
 281                         var isPartStr = typeof part === "string",
 282                                 isTag = isPartStr && !/\W/.test(part),
 283                                 isPartStrNotTag = isPartStr && !isTag;
 284
 285                         if ( isTag && !isXML ) {
 286                                 part = part.toUpperCase();
 287                         }
 288
 289                         for ( var i = 0, l = checkSet.length, elem; i < l; i++ ) {
 290                                 if ( (elem = checkSet[i]) ) {
 291                                         while ( (elem = elem.previousSibling) && elem.nodeType !== 1 ) {}
 292
 293                                         checkSet[i] = isPartStrNotTag || elem && elem.nodeName === part ?
 294                                                 elem || false :
 295                                                 elem === part;
 296                                 }
 297                         }
 298
 299                         if ( isPartStrNotTag ) {
 300                                 Sizzle.filter( part, checkSet, true );
 301                         }
 302                 },
 303                 ">": function(checkSet, part, isXML){
 304                         var isPartStr = typeof part === "string";
 305
 306                         if ( isPartStr && !/\W/.test(part) ) {
 307                                 part = isXML ? part : part.toUpperCase();
 308
 309                                 for ( var i = 0, l = checkSet.length; i < l; i++ ) {
 310                                         var elem = checkSet[i];
 311                                         if ( elem ) {
 312                                                 var parent = elem.parentNode;
 313                                                 checkSet[i] = parent.nodeName === part ? parent : false;
 314                                         }
 315                                 }
 316                         } else {
 317                                 for ( var i = 0, l = checkSet.length; i < l; i++ ) {
 318                                         var elem = checkSet[i];
 319                                         if ( elem ) {
 320                                                 checkSet[i] = isPartStr ?
 321                                                         elem.parentNode :
 322                                                         elem.parentNode === part;
 323                                         }
 324                                 }
 325
 326                                 if ( isPartStr ) {
 327                                         Sizzle.filter( part, checkSet, true );
 328                                 }
 329                         }
 330                 },
 331                 "": function(checkSet, part, isXML){
 332                         var doneName = done++, checkFn = dirCheck;
 333
 334                         if ( !part.match(/\W/) ) {
 335                                 var nodeCheck = part = isXML ? part : part.toUpperCase();
 336                                 checkFn = dirNodeCheck;
 337                         }
 338
 339                         checkFn("parentNode", part, doneName, checkSet, nodeCheck, isXML);
 340                 },
 341                 "~": function(checkSet, part, isXML){
 342                         var doneName = done++, checkFn = dirCheck;
 343
 344                         if ( typeof part === "string" && !part.match(/\W/) ) {
 345                                 var nodeCheck = part = isXML ? part : part.toUpperCase();
 346                                 checkFn = dirNodeCheck;
 347                         }
 348
 349                         checkFn("previousSibling", part, doneName, checkSet, nodeCheck, isXML);
 350                 }
 351         },
 352         find: {
 353                 ID: function(match, context, isXML){
 354                         if ( typeof context.getElementById !== "undefined" && !isXML ) {
 355                                 var m = context.getElementById(match[1]);
 356                                 return m ? [m] : [];
 357                         }
 358                 },
 359                 NAME: function(match, context, isXML){
 360                         if ( typeof context.getElementsByName !== "undefined" ) {
 361                                 var ret = [], results = context.getElementsByName(match[1]);
 362
 363                                 for ( var i = 0, l = results.length; i < l; i++ ) {
 364                                         if ( results[i].getAttribute("name") === match[1] ) {
 365                                                 ret.push( results[i] );
 366                                         }
 367                                 }
 368
 369                                 return ret.length === 0 ? null : ret;
 370                         }
 371                 },
 372                 TAG: function(match, context){
 373                         return context.getElementsByTagName(match[1]);
 374                 }
 375         },
 376         preFilter: {
 377                 CLASS: function(match, curLoop, inplace, result, not, isXML){
 378                         match = " " + match[1].replace(/\\/g, "") + " ";
 379
 380                         if ( isXML ) {
 381                                 return match;
 382                         }
 383
 384                         for ( var i = 0, elem; (elem = curLoop[i]) != null; i++ ) {
 385                                 if ( elem ) {
 386                                         if ( not ^ (elem.className && (" " + elem.className + " ").indexOf(match) >= 0) ) {
 387                                                 if ( !inplace )
 388                                                         result.push( elem );
 389                                         } else if ( inplace ) {
 390                                                 curLoop[i] = false;
 391                                         }
 392                                 }
 393                         }
 394
 395                         return false;
 396                 },
 397                 ID: function(match){
 398                         return match[1].replace(/\\/g, "");
 399                 },
 400                 TAG: function(match, curLoop){
 401                         for ( var i = 0; curLoop[i] === false; i++ ){}
 402                         return curLoop[i] && isXML(curLoop[i]) ? match[1] : match[1].toUpperCase();
 403                 },
 404                 CHILD: function(match){
 405                         if ( match[1] == "nth" ) {
 406                                 // parse equations like 'even', 'odd', '5', '2n', '3n+2', '4n-1', '-n+6'
 407                                 var test = /(-?)(\d*)n((?:\+|-)?\d*)/.exec(
 408                                         match[2] == "even" && "2n" || match[2] == "odd" && "2n+1" ||
 409                                         !/\D/.test( match[2] ) && "0n+" + match[2] || match[2]);
 410
 411                                 // calculate the numbers (first)n+(last) including if they are negative
 412                                 match[2] = (test[1] + (test[2] || 1)) - 0;
 413                                 match[3] = test[3] - 0;
 414                         }
 415
 416                         // TODO: Move to normal caching system
 417                         match[0] = done++;
 418
 419                         return match;
 420                 },
 421                 ATTR: function(match, curLoop, inplace, result, not, isXML){
 422                         var name = match[1].replace(/\\/g, "");
 423
 424                         if ( !isXML && Expr.attrMap[name] ) {
 425                                 match[1] = Expr.attrMap[name];
 426                         }
 427
 428                         if ( match[2] === "~=" ) {
 429                                 match[4] = " " + match[4] + " ";
 430                         }
 431
 432                         return match;
 433                 },
 434                 PSEUDO: function(match, curLoop, inplace, result, not){
 435                         if ( match[1] === "not" ) {
 436                                 // If we're dealing with a complex expression, or a simple one
 437                                 if ( match[3].match(chunker).length > 1 || /^\w/.test(match[3]) ) {
 438                                         match[3] = Sizzle(match[3], null, null, curLoop);
 439                                 } else {
 440                                         var ret = Sizzle.filter(match[3], curLoop, inplace, true ^ not);
 441                                         if ( !inplace ) {
 442                                                 result.push.apply( result, ret );
 443                                         }
 444                                         return false;
 445                                 }
 446                         } else if ( Expr.match.POS.test( match[0] ) || Expr.match.CHILD.test( match[0] ) ) {
 447                                 return true;
 448                         }
 449
 450                         return match;
 451                 },
 452                 POS: function(match){
 453                         match.unshift( true );
 454                         return match;
 455                 }
 456         },
 457         filters: {
 458                 enabled: function(elem){
 459                         return elem.disabled === false && elem.type !== "hidden";
 460                 },
 461                 disabled: function(elem){
 462                         return elem.disabled === true;
 463                 },
 464                 checked: function(elem){
 465                         return elem.checked === true;
 466                 },
 467                 selected: function(elem){
 468                         // Accessing this property makes selected-by-default
 469                         // options in Safari work properly
 470                         elem.parentNode.selectedIndex;
 471                         return elem.selected === true;
 472                 },
 473                 parent: function(elem){
 474                         return !!elem.firstChild;
 475                 },
 476                 empty: function(elem){
 477                         return !elem.firstChild;
 478                 },
 479                 has: function(elem, i, match){
 480                         return !!Sizzle( match[3], elem ).length;
 481                 },
 482                 header: function(elem){
 483                         return /h\d/i.test( elem.nodeName );
 484                 },
 485                 text: function(elem){
 486                         return "text" === elem.type;
 487                 },
 488                 radio: function(elem){
 489                         return "radio" === elem.type;
 490                 },
 491                 checkbox: function(elem){
 492                         return "checkbox" === elem.type;
 493                 },
 494                 file: function(elem){
 495                         return "file" === elem.type;
 496                 },
 497                 password: function(elem){
 498                         return "password" === elem.type;
 499                 },
 500                 submit: function(elem){
 501                         return "submit" === elem.type;
 502                 },
 503                 image: function(elem){
 504                         return "image" === elem.type;
 505                 },
 506                 reset: function(elem){
 507                         return "reset" === elem.type;
 508                 },
 509                 button: function(elem){
 510                         return "button" === elem.type || elem.nodeName.toUpperCase() === "BUTTON";
 511                 },
 512                 input: function(elem){
 513                         return /input|select|textarea|button/i.test(elem.nodeName);
 514                 }
 515         },
 516         setFilters: {
 517                 first: function(elem, i){
 518                         return i === 0;
 519                 },
 520                 last: function(elem, i, match, array){
 521                         return i === array.length - 1;
 522                 },
 523                 even: function(elem, i){
 524                         return i % 2 === 0;
 525                 },
 526                 odd: function(elem, i){
 527                         return i % 2 === 1;
 528                 },
 529                 lt: function(elem, i, match){
 530                         return i < match[3] - 0;
 531                 },
 532                 gt: function(elem, i, match){
 533                         return i > match[3] - 0;
 534                 },
 535                 nth: function(elem, i, match){
 536                         return match[3] - 0 == i;
 537                 },
 538                 eq: function(elem, i, match){
 539                         return match[3] - 0 == i;
 540                 }
 541         },
 542         filter: {
 543                 PSEUDO: function(elem, match, i, array){
 544                         var name = match[1], filter = Expr.filters[ name ];
 545
 546                         if ( filter ) {
 547                                 return filter( elem, i, match, array );
 548                         } else if ( name === "contains" ) {
 549                                 return (elem.textContent || elem.innerText || "").indexOf(match[3]) >= 0;
 550                         } else if ( name === "not" ) {
 551                                 var not = match[3];
 552
 553                                 for ( var i = 0, l = not.length; i < l; i++ ) {
 554                                         if ( not[i] === elem ) {
 555                                                 return false;
 556                                         }
 557                                 }
 558
 559                                 return true;
 560                         }
 561                 },
 562                 CHILD: function(elem, match){
 563                         var type = match[1], node = elem;
 564                         switch (type) {
 565                                 case 'only':
 566                                 case 'first':
 567                                         while (node = node.previousSibling)  {
 568                                                 if ( node.nodeType === 1 ) return false;
 569                                         }
 570                                         if ( type == 'first') return true;
 571                                         node = elem;
 572                                 case 'last':
 573                                         while (node = node.nextSibling)  {
 574                                                 if ( node.nodeType === 1 ) return false;
 575                                         }
 576                                         return true;
 577                                 case 'nth':
 578                                         var first = match[2], last = match[3];
 579
 580                                         if ( first == 1 && last == 0 ) {
 581                                                 return true;
 582                                         }
 583
 584                                         var doneName = match[0],
 585                                                 parent = elem.parentNode;
 586
 587                                         if ( parent && (parent.sizcache !== doneName || !elem.nodeIndex) ) {
 588                                                 var count = 0;
 589                                                 for ( node = parent.firstChild; node; node = node.nextSibling ) {
 590                                                         if ( node.nodeType === 1 ) {
 591                                                                 node.nodeIndex = ++count;
 592                                                         }
 593                                                 }
 594                                                 parent.sizcache = doneName;
 595                                         }
 596
 597                                         var diff = elem.nodeIndex - last;
 598                                         if ( first == 0 ) {
 599                                                 return diff == 0;
 600                                         } else {
 601                                                 return ( diff % first == 0 && diff / first >= 0 );
 602                                         }
 603                         }
 604                 },
 605                 ID: function(elem, match){
 606                         return elem.nodeType === 1 && elem.getAttribute("id") === match;
 607                 },
 608                 TAG: function(elem, match){
 609                         return (match === "*" && elem.nodeType === 1) || elem.nodeName === match;
 610                 },
 611                 CLASS: function(elem, match){
 612                         return (" " + (elem.className || elem.getAttribute("class")) + " ")
 613                                 .indexOf( match ) > -1;
 614                 },
 615                 ATTR: function(elem, match){
 616                         var name = match[1],
 617                                 result = Expr.attrHandle[ name ] ?
 618                                         Expr.attrHandle[ name ]( elem ) :
 619                                         elem[ name ] != null ?
 620                                                 elem[ name ] :
 621                                                 elem.getAttribute( name ),
 622                                 value = result + "",
 623                                 type = match[2],
 624                                 check = match[4];
 625
 626                         return result == null ?
 627                                 type === "!=" :
 628                                 type === "=" ?
 629                                 value === check :
 630                                 type === "*=" ?
 631                                 value.indexOf(check) >= 0 :
 632                                 type === "~=" ?
 633                                 (" " + value + " ").indexOf(check) >= 0 :
 634                                 !check ?
 635                                 value && result !== false :
 636                                 type === "!=" ?
 637                                 value != check :
 638                                 type === "^=" ?
 639                                 value.indexOf(check) === 0 :
 640                                 type === "$=" ?
 641                                 value.substr(value.length - check.length) === check :
 642                                 type === "|=" ?
 643                                 value === check || value.substr(0, check.length + 1) === check + "-" :
 644                                 false;
 645                 },
 646                 POS: function(elem, match, i, array){
 647                         var name = match[2], filter = Expr.setFilters[ name ];
 648
 649                         if ( filter ) {
 650                                 return filter( elem, i, match, array );
 651                         }
 652                 }
 653         }
 654 };
 655
 656 var origPOS = Expr.match.POS;
 657
 658 for ( var type in Expr.match ) {
 659         Expr.match[ type ] = new RegExp( Expr.match[ type ].source + /(?![^\[]*\])(?![^\(]*\))/.source );
 660 }
 661
 662 var makeArray = function(array, results) {
 663         array = Array.prototype.slice.call( array );
 664
 665         if ( results ) {
 666                 results.push.apply( results, array );
 667                 return results;
 668         }
 669
 670         return array;
 671 };
 672
 673 // Perform a simple check to determine if the browser is capable of
 674 // converting a NodeList to an array using builtin methods.
 675 try {
 676         Array.prototype.slice.call( document.documentElement.childNodes );
 677
 678 // Provide a fallback method if it does not work
 679 } catch(e){
 680         makeArray = function(array, results) {
 681                 var ret = results || [];
 682
 683                 if ( toString.call(array) === "[object Array]" ) {
 684                         Array.prototype.push.apply( ret, array );
 685                 } else {
 686                         if ( typeof array.length === "number" ) {
 687                                 for ( var i = 0, l = array.length; i < l; i++ ) {
 688                                         ret.push( array[i] );
 689                                 }
 690                         } else {
 691                                 for ( var i = 0; array[i]; i++ ) {
 692                                         ret.push( array[i] );
 693                                 }
 694                         }
 695                 }
 696
 697                 return ret;
 698         };
 699 }
 700
 701 var sortOrder;
 702
 703 if ( document.documentElement.compareDocumentPosition ) {
 704         sortOrder = function( a, b ) {
 705                 var ret = a.compareDocumentPosition(b) & 4 ? -1 : a === b ? 0 : 1;
 706                 if ( ret === 0 ) {
 707                         hasDuplicate = true;
 708                 }
 709                 return ret;
 710         };
 711 } else if ( "sourceIndex" in document.documentElement ) {
 712         sortOrder = function( a, b ) {
 713                 var ret = a.sourceIndex - b.sourceIndex;
 714                 if ( ret === 0 ) {
 715                         hasDuplicate = true;
 716                 }
 717                 return ret;
 718         };
 719 } else if ( document.createRange ) {
 720         sortOrder = function( a, b ) {
 721                 var aRange = a.ownerDocument.createRange(), bRange = b.ownerDocument.createRange();
 722                 aRange.selectNode(a);
 723                 aRange.collapse(true);
 724                 bRange.selectNode(b);
 725                 bRange.collapse(true);
 726                 var ret = aRange.compareBoundaryPoints(Range.START_TO_END, bRange);
 727                 if ( ret === 0 ) {
 728                         hasDuplicate = true;
 729                 }
 730                 return ret;
 731         };
 732 }
 733
 734 // Check to see if the browser returns elements by name when
 735 // querying by getElementById (and provide a workaround)
 736 (function(){
 737         // We're going to inject a fake input element with a specified name
 738         var form = document.createElement("div"),
 739                 id = "script" + (new Date).getTime();
 740         form.innerHTML = "<a name='" + id + "'/>";
 741
 742         // Inject it into the root element, check its status, and remove it quickly
 743         var root = document.documentElement;
 744         root.insertBefore( form, root.firstChild );
 745
 746         // The workaround has to do additional checks after a getElementById
 747         // Which slows things down for other browsers (hence the branching)
 748         if ( !!document.getElementById( id ) ) {
 749                 Expr.find.ID = function(match, context, isXML){
 750                         if ( typeof context.getElementById !== "undefined" && !isXML ) {
 751                                 var m = context.getElementById(match[1]);
 752                                 return m ? m.id === match[1] || typeof m.getAttributeNode !== "undefined" && m.getAttributeNode("id").nodeValue === match[1] ? [m] : undefined : [];
 753                         }
 754                 };
 755
 756                 Expr.filter.ID = function(elem, match){
 757                         var node = typeof elem.getAttributeNode !== "undefined" && elem.getAttributeNode("id");
 758                         return elem.nodeType === 1 && node && node.nodeValue === match;
 759                 };
 760         }
 761
 762         root.removeChild( form );
 763 })();
 764
 765 (function(){
 766         // Check to see if the browser returns only elements
 767         // when doing getElementsByTagName("*")
 768
 769         // Create a fake element
 770         var div = document.createElement("div");
 771         div.appendChild( document.createComment("") );
 772
 773         // Make sure no comments are found
 774         if ( div.getElementsByTagName("*").length > 0 ) {
 775                 Expr.find.TAG = function(match, context){
 776                         var results = context.getElementsByTagName(match[1]);
 777
 778                         // Filter out possible comments
 779                         if ( match[1] === "*" ) {
 780                                 var tmp = [];
 781
 782                                 for ( var i = 0; results[i]; i++ ) {
 783                                         if ( results[i].nodeType === 1 ) {
 784                                                 tmp.push( results[i] );
 785                                         }
 786                                 }
 787
 788                                 results = tmp;
 789                         }
 790
 791                         return results;
 792                 };
 793         }
 794
 795         // Check to see if an attribute returns normalized href attributes
 796         div.innerHTML = "<a href='#'></a>";
 797         if ( div.firstChild && typeof div.firstChild.getAttribute !== "undefined" &&
 798                         div.firstChild.getAttribute("href") !== "#" ) {
 799                 Expr.attrHandle.href = function(elem){
 800                         return elem.getAttribute("href", 2);
 801                 };
 802         }
 803 })();
 804
 805 if ( document.querySelectorAll ) (function(){
 806         var oldSizzle = Sizzle, div = document.createElement("div");
 807         div.innerHTML = "<p class='TEST'></p>";
 808
 809         // Safari can't handle uppercase or unicode characters when
 810         // in quirks mode.
 811         if ( div.querySelectorAll && div.querySelectorAll(".TEST").length === 0 ) {
 812                 return;
 813         }
 814
 815         Sizzle = function(query, context, extra, seed){
 816                 context = context || document;
 817
 818                 // Only use querySelectorAll on non-XML documents
 819                 // (ID selectors don't work in non-HTML documents)
 820                 if ( !seed && context.nodeType === 9 && !isXML(context) ) {
 821                         try {
 822                                 return makeArray( context.querySelectorAll(query), extra );
 823                         } catch(e){}
 824                 }
 825
 826                 return oldSizzle(query, context, extra, seed);
 827         };
 828
 829         for ( var prop in oldSizzle ) {
 830                 Sizzle[ prop ] = oldSizzle[ prop ];
 831         }
 832 })();
 833
 834 if ( document.getElementsByClassName && document.documentElement.getElementsByClassName ) (function(){
 835         var div = document.createElement("div");
 836         div.innerHTML = "<div class='test e'></div><div class='test'></div>";
 837
 838         // Opera can't find a second classname (in 9.6)
 839         if ( div.getElementsByClassName("e").length === 0 )
 840                 return;
 841
 842         // Safari caches class attributes, doesn't catch changes (in 3.2)
 843         div.lastChild.className = "e";
 844
 845         if ( div.getElementsByClassName("e").length === 1 )
 846                 return;
 847
 848         Expr.order.splice(1, 0, "CLASS");
 849         Expr.find.CLASS = function(match, context, isXML) {
 850                 if ( typeof context.getElementsByClassName !== "undefined" && !isXML ) {
 851                         return context.getElementsByClassName(match[1]);
 852                 }
 853         };
 854 })();
 855
 856 function dirNodeCheck( dir, cur, doneName, checkSet, nodeCheck, isXML ) {
 857         var sibDir = dir == "previousSibling" && !isXML;
 858         for ( var i = 0, l = checkSet.length; i < l; i++ ) {
 859                 var elem = checkSet[i];
 860                 if ( elem ) {
 861                         if ( sibDir && elem.nodeType === 1 ){
 862                                 elem.sizcache = doneName;
 863                                 elem.sizset = i;
 864                         }
 865                         elem = elem[dir];
 866                         var match = false;
 867
 868                         while ( elem ) {
 869                                 if ( elem.sizcache === doneName ) {
 870                                         match = checkSet[elem.sizset];
 871                                         break;
 872                                 }
 873
 874                                 if ( elem.nodeType === 1 && !isXML ){
 875                                         elem.sizcache = doneName;
 876                                         elem.sizset = i;
 877                                 }
 878
 879                                 if ( elem.nodeName === cur ) {
 880                                         match = elem;
 881                                         break;
 882                                 }
 883
 884                                 elem = elem[dir];
 885                         }
 886
 887                         checkSet[i] = match;
 888                 }
 889         }
 890 }
 891
 892 function dirCheck( dir, cur, doneName, checkSet, nodeCheck, isXML ) {
 893         var sibDir = dir == "previousSibling" && !isXML;
 894         for ( var i = 0, l = checkSet.length; i < l; i++ ) {
 895                 var elem = checkSet[i];
 896                 if ( elem ) {
 897                         if ( sibDir && elem.nodeType === 1 ) {
 898                                 elem.sizcache = doneName;
 899                                 elem.sizset = i;
 900                         }
 901                         elem = elem[dir];
 902                         var match = false;
 903
 904                         while ( elem ) {
 905                                 if ( elem.sizcache === doneName ) {
 906                                         match = checkSet[elem.sizset];
 907                                         break;
 908                                 }
 909
 910                                 if ( elem.nodeType === 1 ) {
 911                                         if ( !isXML ) {
 912                                                 elem.sizcache = doneName;
 913                                                 elem.sizset = i;
 914                                         }
 915                                         if ( typeof cur !== "string" ) {
 916                                                 if ( elem === cur ) {
 917                                                         match = true;
 918                                                         break;
 919                                                 }
 920
 921                                         } else if ( Sizzle.filter( cur, [elem] ).length > 0 ) {
 922                                                 match = elem;
 923                                                 break;
 924                                         }
 925                                 }
 926
 927                                 elem = elem[dir];
 928                         }
 929
 930                         checkSet[i] = match;
 931                 }
 932         }
 933 }
 934
 935 var contains = document.compareDocumentPosition ?  function(a, b){
 936         return a.compareDocumentPosition(b) & 16;
 937 } : function(a, b){
 938         return a !== b && (a.contains ? a.contains(b) : true);
 939 };
 940
 941 var isXML = function(elem){
 942         return elem.nodeType === 9 && elem.documentElement.nodeName !== "HTML" ||
 943                 !!elem.ownerDocument && elem.ownerDocument.documentElement.nodeName !== "HTML";
 944 };
 945
 946 var posProcess = function(selector, context){
 947         var tmpSet = [], later = "", match,
 948                 root = context.nodeType ? [context] : context;
 949
 950         // Position selectors must be done after the filter
 951         // And so must :not(positional) so we move all PSEUDOs to the end
 952         while ( (match = Expr.match.PSEUDO.exec( selector )) ) {
 953                 later += match[0];
 954                 selector = selector.replace( Expr.match.PSEUDO, "" );
 955         }
 956
 957         selector = Expr.relative[selector] ? selector + "*" : selector;
 958
 959         for ( var i = 0, l = root.length; i < l; i++ ) {
 960                 Sizzle( selector, root[i], tmpSet );
 961         }
 962
 963         return Sizzle.filter( later, tmpSet );
 964 };
 965
 966 // EXPOSE
 967 jQuery.find = Sizzle;
 968 jQuery.expr = Sizzle.selectors;
 969 jQuery.expr[":"] = jQuery.expr.filters;
 970
 971 Sizzle.selectors.filters.hidden = function(elem){
 972         return elem.offsetWidth === 0 && elem.offsetHeight === 0;
 973 };
 974
 975 Sizzle.selectors.filters.visible = function(elem){
 976         return elem.offsetWidth > 0 || elem.offsetHeight > 0;
 977 };
 978
 979 Sizzle.selectors.filters.animated = function(elem){
 980         return jQuery.grep(jQuery.timers, function(fn){
 981                 return elem === fn.elem;
 982         }).length;
 983 };
 984
 985 jQuery.filter = jQuery.multiFilter = function( expr, elems, not ) {
 986         if ( not ) {
 987                 expr = ":not(" + expr + ")";
 988         }
 989
 990         return Sizzle.matches(expr, elems);
 991 };
 992
 993 jQuery.dir = function( elem, dir ){
 994         var matched = [], cur = elem[dir];
 995         while ( cur && cur != document ) {
 996                 if ( cur.nodeType == 1 )
 997                         matched.push( cur );
 998                 cur = cur[dir];
 999         }
1000         return matched;
1001 };
1002
1003 jQuery.nth = function(cur, result, dir, elem){
1004         result = result || 1;
1005         var num = 0;
1006
1007         for ( ; cur; cur = cur[dir] )
1008                 if ( cur.nodeType == 1 && ++num == result )
1009                         break;
1010
1011         return cur;
1012 };
1013
1014 jQuery.sibling = function(n, elem){
1015         var r = [];
1016
1017         for ( ; n; n = n.nextSibling ) {
1018                 if ( n.nodeType == 1 && n != elem )
1019                         r.push( n );
1020         }
1021
1022         return r;
1023 };
1024
1025 return;
1026
1027 window.Sizzle = Sizzle;
1028
1029 })();