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         arraySplice = Array.prototype.splice,
  13         arrayPush = Array.prototype.push,
  14         arraySort = Array.prototype.sort;
  15
  16 var Sizzle = function(selector, context, results, seed) {
  17         results = results || [];
  18         var origContext = context = context || document;
  19
  20         if ( context.nodeType !== 1 && context.nodeType !== 9 ) {
  21                 return [];
  22         }
  23
  24         if ( !selector || typeof selector !== "string" ) {
  25                 return results;
  26         }
  27
  28         var parts = [], m, set, checkSet, check, mode, extra, prune = true, contextXML = isXML(context);
  29
  30         // Reset the position of the chunker regexp (start from head)
  31         chunker.lastIndex = 0;
  32
  33         while ( (m = chunker.exec(selector)) !== null ) {
  34                 parts.push( m[1] );
  35
  36                 if ( m[2] ) {
  37                         extra = RegExp.rightContext;
  38                         break;
  39                 }
  40         }
  41
  42         if ( parts.length > 1 && origPOS.exec( selector ) ) {
  43                 if ( parts.length === 2 && Expr.relative[ parts[0] ] ) {
  44                         set = posProcess( parts[0] + parts[1], context );
  45                 } else {
  46                         set = Expr.relative[ parts[0] ] ?
  47                                 [ context ] :
  48                                 Sizzle( parts.shift(), context );
  49
  50                         while ( parts.length ) {
  51                                 selector = parts.shift();
  52
  53                                 if ( Expr.relative[ selector ] )
  54                                         selector += parts.shift();
  55
  56                                 set = posProcess( selector, set );
  57                         }
  58                 }
  59         } else {
  60                 // Take a shortcut and set the context if the root selector is an ID
  61                 // (but not if it'll be faster if the inner selector is an ID)
  62                 if ( !seed && parts.length > 1 && context.nodeType === 9 && !contextXML &&
  63                                 Expr.match.ID.test(parts[0]) && !Expr.match.ID.test(parts[parts.length - 1]) ) {
  64                         var ret = Sizzle.find( parts.shift(), context, contextXML );
  65                         context = ret.expr ? Sizzle.filter( ret.expr, ret.set )[0] : ret.set[0];
  66                 }
  67
  68                 if ( context ) {
  69                         var ret = seed ?
  70                                 { expr: parts.pop(), set: makeArray(seed) } :
  71                                 Sizzle.find( parts.pop(), parts.length === 1 && (parts[0] === "~" || parts[0] === "+") && context.parentNode ? context.parentNode : context, contextXML );
  72                         set = ret.expr ? Sizzle.filter( ret.expr, ret.set ) : ret.set;
  73
  74                         if ( parts.length > 0 ) {
  75                                 checkSet = makeArray(set);
  76                         } else {
  77                                 prune = false;
  78                         }
  79
  80                         while ( parts.length ) {
  81                                 var cur = parts.pop(), pop = cur;
  82
  83                                 if ( !Expr.relative[ cur ] ) {
  84                                         cur = "";
  85                                 } else {
  86                                         pop = parts.pop();
  87                                 }
  88
  89                                 if ( pop == null ) {
  90                                         pop = context;
  91                                 }
  92
  93                                 Expr.relative[ cur ]( checkSet, pop, contextXML );
  94                         }
  95                 } else {
  96                         checkSet = parts = [];
  97                 }
  98         }
  99
 100         if ( !checkSet ) {
 101                 checkSet = set;
 102         }
 103
 104         if ( !checkSet ) {
 105                 throw "Syntax error, unrecognized expression: " + (cur || selector);
 106         }
 107
 108         if ( toString.call(checkSet) === "[object Array]" ) {
 109                 if ( !prune ) {
 110                         arrayPush.apply( results, checkSet );
 111                 } else if ( context && context.nodeType === 1 ) {
 112                         for ( var i = 0; checkSet[i] != null; i++ ) {
 113                                 if ( checkSet[i] && (checkSet[i] === true || checkSet[i].nodeType === 1 && contains(context, checkSet[i])) ) {
 114                                         arrayPush.call( results, set[i] );
 115                                 }
 116                         }
 117                 } else {
 118                         for ( var i = 0; checkSet[i] != null; i++ ) {
 119                                 if ( checkSet[i] && checkSet[i].nodeType === 1 ) {
 120                                         arrayPush.call( results, set[i] );
 121                                 }
 122                         }
 123                 }
 124         } else {
 125                 makeArray( checkSet, results );
 126         }
 127
 128         if ( extra ) {
 129                 Sizzle( extra, origContext, results, seed );
 130                 Sizzle.uniqueSort( results );
 131         }
 132
 133         return results;
 134 };
 135
 136 Sizzle.uniqueSort = function(results){
 137         if ( sortOrder ) {
 138                 hasDuplicate = false;
 139                 arraySort.call(results, sortOrder);
 140
 141                 if ( hasDuplicate ) {
 142                         for ( var i = 1; i < results.length; i++ ) {
 143                                 if ( results[i] === results[i-1] ) {
 144                                         arraySplice.call(results, i--, 1);
 145                                 }
 146                         }
 147                 }
 148         }
 149 };
 150
 151 Sizzle.matches = function(expr, set){
 152         return Sizzle(expr, null, null, set);
 153 };
 154
 155 Sizzle.find = function(expr, context, isXML){
 156         var set, match;
 157
 158         if ( !expr ) {
 159                 return [];
 160         }
 161
 162         for ( var i = 0, l = Expr.order.length; i < l; i++ ) {
 163                 var type = Expr.order[i], match;
 164
 165                 if ( (match = Expr.match[ type ].exec( expr )) ) {
 166                         var left = RegExp.leftContext;
 167
 168                         if ( left.substr( left.length - 1 ) !== "\\" ) {
 169                                 match[1] = (match[1] || "").replace(/\\/g, "");
 170                                 set = Expr.find[ type ]( match, context, isXML );
 171                                 if ( set != null ) {
 172                                         expr = expr.replace( Expr.match[ type ], "" );
 173                                         break;
 174                                 }
 175                         }
 176                 }
 177         }
 178
 179         if ( !set ) {
 180                 set = context.getElementsByTagName("*");
 181         }
 182
 183         return {set: set, expr: expr};
 184 };
 185
 186 Sizzle.filter = function(expr, set, inplace, not){
 187         var old = expr, result = [], curLoop = set, match, anyFound,
 188                 isXMLFilter = set && set[0] && isXML(set[0]);
 189
 190         while ( expr && set.length ) {
 191                 for ( var type in Expr.filter ) {
 192                         if ( (match = Expr.match[ type ].exec( expr )) != null ) {
 193                                 var filter = Expr.filter[ type ], found, item;
 194                                 anyFound = false;
 195
 196                                 if ( curLoop == result ) {
 197                                         result = [];
 198                                 }
 199
 200                                 if ( Expr.preFilter[ type ] ) {
 201                                         match = Expr.preFilter[ type ]( match, curLoop, inplace, result, not, isXMLFilter );
 202
 203                                         if ( !match ) {
 204                                                 anyFound = found = true;
 205                                         } else if ( match === true ) {
 206                                                 continue;
 207                                         }
 208                                 }
 209
 210                                 if ( match ) {
 211                                         for ( var i = 0; (item = curLoop[i]) != null; i++ ) {
 212                                                 if ( item ) {
 213                                                         found = filter( item, match, i, curLoop );
 214                                                         var pass = not ^ !!found;
 215
 216                                                         if ( inplace && found != null ) {
 217                                                                 if ( pass ) {
 218                                                                         anyFound = true;
 219                                                                 } else {
 220                                                                         curLoop[i] = false;
 221                                                                 }
 222                                                         } else if ( pass ) {
 223                                                                 result.push( item );
 224                                                                 anyFound = true;
 225                                                         }
 226                                                 }
 227                                         }
 228                                 }
 229
 230                                 if ( found !== undefined ) {
 231                                         if ( !inplace ) {
 232                                                 curLoop = result;
 233                                         }
 234
 235                                         expr = expr.replace( Expr.match[ type ], "" );
 236
 237                                         if ( !anyFound ) {
 238                                                 return [];
 239                                         }
 240
 241                                         break;
 242                                 }
 243                         }
 244                 }
 245
 246                 // Improper expression
 247                 if ( expr == old ) {
 248                         if ( anyFound == null ) {
 249                                 throw "Syntax error, unrecognized expression: " + expr;
 250                         } else {
 251                                 break;
 252                         }
 253                 }
 254
 255                 old = expr;
 256         }
 257
 258         return curLoop;
 259 };
 260
 261 var Expr = Sizzle.selectors = {
 262         order: [ "ID", "NAME", "TAG" ],
 263         match: {
 264                 ID: /#((?:[\w\u00c0-\uFFFF_-]|\\.)+)/,
 265                 CLASS: /\.((?:[\w\u00c0-\uFFFF_-]|\\.)+)/,
 266                 NAME: /\[name=['"]*((?:[\w\u00c0-\uFFFF_-]|\\.)+)['"]*\]/,
 267                 ATTR: /\[\s*((?:[\w\u00c0-\uFFFF_-]|\\.)+)\s*(?:(\S?=)\s*(['"]*)(.*?)\3|)\s*\]/,
 268                 TAG: /^((?:[\w\u00c0-\uFFFF\*_-]|\\.)+)/,
 269                 CHILD: /:(only|nth|last|first)-child(?:\((even|odd|[\dn+-]*)\))?/,
 270                 POS: /:(nth|eq|gt|lt|first|last|even|odd)(?:\((\d*)\))?(?=[^-]|$)/,
 271                 PSEUDO: /:((?:[\w\u00c0-\uFFFF_-]|\\.)+)(?:\((['"]*)((?:\([^\)]+\)|[^\2\(\)]*)+)\2\))?/
 272         },
 273         attrMap: {
 274                 "class": "className",
 275                 "for": "htmlFor"
 276         },
 277         attrHandle: {
 278                 href: function(elem){
 279                         return elem.getAttribute("href");
 280                 }
 281         },
 282         relative: {
 283                 "+": function(checkSet, part, isXML){
 284                         var isPartStr = typeof part === "string",
 285                                 isTag = isPartStr && !/\W/.test(part),
 286                                 isPartStrNotTag = isPartStr && !isTag;
 287
 288                         if ( isTag && !isXML ) {
 289                                 part = part.toUpperCase();
 290                         }
 291
 292                         for ( var i = 0, l = checkSet.length, elem; i < l; i++ ) {
 293                                 if ( (elem = checkSet[i]) ) {
 294                                         while ( (elem = elem.previousSibling) && elem.nodeType !== 1 ) {}
 295
 296                                         checkSet[i] = isPartStrNotTag || elem && elem.nodeName === part ?
 297                                                 elem || false :
 298                                                 elem === part;
 299                                 }
 300                         }
 301
 302                         if ( isPartStrNotTag ) {
 303                                 Sizzle.filter( part, checkSet, true );
 304                         }
 305                 },
 306                 ">": function(checkSet, part, isXML){
 307                         var isPartStr = typeof part === "string";
 308
 309                         if ( isPartStr && !/\W/.test(part) ) {
 310                                 part = isXML ? part : part.toUpperCase();
 311
 312                                 for ( var i = 0, l = checkSet.length; i < l; i++ ) {
 313                                         var elem = checkSet[i];
 314                                         if ( elem ) {
 315                                                 var parent = elem.parentNode;
 316                                                 checkSet[i] = parent.nodeName === part ? parent : false;
 317                                         }
 318                                 }
 319                         } else {
 320                                 for ( var i = 0, l = checkSet.length; i < l; i++ ) {
 321                                         var elem = checkSet[i];
 322                                         if ( elem ) {
 323                                                 checkSet[i] = isPartStr ?
 324                                                         elem.parentNode :
 325                                                         elem.parentNode === part;
 326                                         }
 327                                 }
 328
 329                                 if ( isPartStr ) {
 330                                         Sizzle.filter( part, checkSet, true );
 331                                 }
 332                         }
 333                 },
 334                 "": function(checkSet, part, isXML){
 335                         var doneName = done++, checkFn = dirCheck;
 336
 337                         if ( !part.match(/\W/) ) {
 338                                 var nodeCheck = part = isXML ? part : part.toUpperCase();
 339                                 checkFn = dirNodeCheck;
 340                         }
 341
 342                         checkFn("parentNode", part, doneName, checkSet, nodeCheck, isXML);
 343                 },
 344                 "~": function(checkSet, part, isXML){
 345                         var doneName = done++, checkFn = dirCheck;
 346
 347                         if ( typeof part === "string" && !part.match(/\W/) ) {
 348                                 var nodeCheck = part = isXML ? part : part.toUpperCase();
 349                                 checkFn = dirNodeCheck;
 350                         }
 351
 352                         checkFn("previousSibling", part, doneName, checkSet, nodeCheck, isXML);
 353                 }
 354         },
 355         find: {
 356                 ID: function(match, context, isXML){
 357                         if ( typeof context.getElementById !== "undefined" && !isXML ) {
 358                                 var m = context.getElementById(match[1]);
 359                                 return m ? [m] : [];
 360                         }
 361                 },
 362                 NAME: function(match, context, isXML){
 363                         if ( typeof context.getElementsByName !== "undefined" ) {
 364                                 var ret = [], results = context.getElementsByName(match[1]);
 365
 366                                 for ( var i = 0, l = results.length; i < l; i++ ) {
 367                                         if ( results[i].getAttribute("name") === match[1] ) {
 368                                                 ret.push( results[i] );
 369                                         }
 370                                 }
 371
 372                                 return ret.length === 0 ? null : ret;
 373                         }
 374                 },
 375                 TAG: function(match, context){
 376                         return context.getElementsByTagName(match[1]);
 377                 }
 378         },
 379         preFilter: {
 380                 CLASS: function(match, curLoop, inplace, result, not, isXML){
 381                         match = " " + match[1].replace(/\\/g, "") + " ";
 382
 383                         if ( isXML ) {
 384                                 return match;
 385                         }
 386
 387                         for ( var i = 0, elem; (elem = curLoop[i]) != null; i++ ) {
 388                                 if ( elem ) {
 389                                         if ( not ^ (elem.className && (" " + elem.className + " ").indexOf(match) >= 0) ) {
 390                                                 if ( !inplace )
 391                                                         result.push( elem );
 392                                         } else if ( inplace ) {
 393                                                 curLoop[i] = false;
 394                                         }
 395                                 }
 396                         }
 397
 398                         return false;
 399                 },
 400                 ID: function(match){
 401                         return match[1].replace(/\\/g, "");
 402                 },
 403                 TAG: function(match, curLoop){
 404                         for ( var i = 0; curLoop[i] === false; i++ ){}
 405                         return curLoop[i] && isXML(curLoop[i]) ? match[1] : match[1].toUpperCase();
 406                 },
 407                 CHILD: function(match){
 408                         if ( match[1] == "nth" ) {
 409                                 // parse equations like 'even', 'odd', '5', '2n', '3n+2', '4n-1', '-n+6'
 410                                 var test = /(-?)(\d*)n((?:\+|-)?\d*)/.exec(
 411                                         match[2] == "even" && "2n" || match[2] == "odd" && "2n+1" ||
 412                                         !/\D/.test( match[2] ) && "0n+" + match[2] || match[2]);
 413
 414                                 // calculate the numbers (first)n+(last) including if they are negative
 415                                 match[2] = (test[1] + (test[2] || 1)) - 0;
 416                                 match[3] = test[3] - 0;
 417                         }
 418
 419                         // TODO: Move to normal caching system
 420                         match[0] = done++;
 421
 422                         return match;
 423                 },
 424                 ATTR: function(match, curLoop, inplace, result, not, isXML){
 425                         var name = match[1].replace(/\\/g, "");
 426
 427                         if ( !isXML && Expr.attrMap[name] ) {
 428                                 match[1] = Expr.attrMap[name];
 429                         }
 430
 431                         if ( match[2] === "~=" ) {
 432                                 match[4] = " " + match[4] + " ";
 433                         }
 434
 435                         return match;
 436                 },
 437                 PSEUDO: function(match, curLoop, inplace, result, not){
 438                         if ( match[1] === "not" ) {
 439                                 // If we're dealing with a complex expression, or a simple one
 440                                 if ( match[3].match(chunker).length > 1 || /^\w/.test(match[3]) ) {
 441                                         match[3] = Sizzle(match[3], null, null, curLoop);
 442                                 } else {
 443                                         var ret = Sizzle.filter(match[3], curLoop, inplace, true ^ not);
 444                                         if ( !inplace ) {
 445                                                 result.push.apply( result, ret );
 446                                         }
 447                                         return false;
 448                                 }
 449                         } else if ( Expr.match.POS.test( match[0] ) || Expr.match.CHILD.test( match[0] ) ) {
 450                                 return true;
 451                         }
 452
 453                         return match;
 454                 },
 455                 POS: function(match){
 456                         match.unshift( true );
 457                         return match;
 458                 }
 459         },
 460         filters: {
 461                 enabled: function(elem){
 462                         return elem.disabled === false && elem.type !== "hidden";
 463                 },
 464                 disabled: function(elem){
 465                         return elem.disabled === true;
 466                 },
 467                 checked: function(elem){
 468                         return elem.checked === true;
 469                 },
 470                 selected: function(elem){
 471                         // Accessing this property makes selected-by-default
 472                         // options in Safari work properly
 473                         elem.parentNode.selectedIndex;
 474                         return elem.selected === true;
 475                 },
 476                 parent: function(elem){
 477                         return !!elem.firstChild;
 478                 },
 479                 empty: function(elem){
 480                         return !elem.firstChild;
 481                 },
 482                 has: function(elem, i, match){
 483                         return !!Sizzle( match[3], elem ).length;
 484                 },
 485                 header: function(elem){
 486                         return /h\d/i.test( elem.nodeName );
 487                 },
 488                 text: function(elem){
 489                         return "text" === elem.type;
 490                 },
 491                 radio: function(elem){
 492                         return "radio" === elem.type;
 493                 },
 494                 checkbox: function(elem){
 495                         return "checkbox" === elem.type;
 496                 },
 497                 file: function(elem){
 498                         return "file" === elem.type;
 499                 },
 500                 password: function(elem){
 501                         return "password" === elem.type;
 502                 },
 503                 submit: function(elem){
 504                         return "submit" === elem.type;
 505                 },
 506                 image: function(elem){
 507                         return "image" === elem.type;
 508                 },
 509                 reset: function(elem){
 510                         return "reset" === elem.type;
 511                 },
 512                 button: function(elem){
 513                         return "button" === elem.type || elem.nodeName.toUpperCase() === "BUTTON";
 514                 },
 515                 input: function(elem){
 516                         return /input|select|textarea|button/i.test(elem.nodeName);
 517                 }
 518         },
 519         setFilters: {
 520                 first: function(elem, i){
 521                         return i === 0;
 522                 },
 523                 last: function(elem, i, match, array){
 524                         return i === array.length - 1;
 525                 },
 526                 even: function(elem, i){
 527                         return i % 2 === 0;
 528                 },
 529                 odd: function(elem, i){
 530                         return i % 2 === 1;
 531                 },
 532                 lt: function(elem, i, match){
 533                         return i < match[3] - 0;
 534                 },
 535                 gt: function(elem, i, match){
 536                         return i > match[3] - 0;
 537                 },
 538                 nth: function(elem, i, match){
 539                         return match[3] - 0 == i;
 540                 },
 541                 eq: function(elem, i, match){
 542                         return match[3] - 0 == i;
 543                 }
 544         },
 545         filter: {
 546                 PSEUDO: function(elem, match, i, array){
 547                         var name = match[1], filter = Expr.filters[ name ];
 548
 549                         if ( filter ) {
 550                                 return filter( elem, i, match, array );
 551                         } else if ( name === "contains" ) {
 552                                 return (elem.textContent || elem.innerText || "").indexOf(match[3]) >= 0;
 553                         } else if ( name === "not" ) {
 554                                 var not = match[3];
 555
 556                                 for ( var i = 0, l = not.length; i < l; i++ ) {
 557                                         if ( not[i] === elem ) {
 558                                                 return false;
 559                                         }
 560                                 }
 561
 562                                 return true;
 563                         }
 564                 },
 565                 CHILD: function(elem, match){
 566                         var type = match[1], node = elem;
 567                         switch (type) {
 568                                 case 'only':
 569                                 case 'first':
 570                                         while (node = node.previousSibling)  {
 571                                                 if ( node.nodeType === 1 ) return false;
 572                                         }
 573                                         if ( type == 'first') return true;
 574                                         node = elem;
 575                                 case 'last':
 576                                         while (node = node.nextSibling)  {
 577                                                 if ( node.nodeType === 1 ) return false;
 578                                         }
 579                                         return true;
 580                                 case 'nth':
 581                                         var first = match[2], last = match[3];
 582
 583                                         if ( first == 1 && last == 0 ) {
 584                                                 return true;
 585                                         }
 586
 587                                         var doneName = match[0],
 588                                                 parent = elem.parentNode;
 589
 590                                         if ( parent && (parent.sizcache !== doneName || !elem.nodeIndex) ) {
 591                                                 var count = 0;
 592                                                 for ( node = parent.firstChild; node; node = node.nextSibling ) {
 593                                                         if ( node.nodeType === 1 ) {
 594                                                                 node.nodeIndex = ++count;
 595                                                         }
 596                                                 }
 597                                                 parent.sizcache = doneName;
 598                                         }
 599
 600                                         var diff = elem.nodeIndex - last;
 601                                         if ( first == 0 ) {
 602                                                 return diff == 0;
 603                                         } else {
 604                                                 return ( diff % first == 0 && diff / first >= 0 );
 605                                         }
 606                         }
 607                 },
 608                 ID: function(elem, match){
 609                         return elem.nodeType === 1 && elem.getAttribute("id") === match;
 610                 },
 611                 TAG: function(elem, match){
 612                         return (match === "*" && elem.nodeType === 1) || elem.nodeName === match;
 613                 },
 614                 CLASS: function(elem, match){
 615                         return (" " + (elem.className || elem.getAttribute("class")) + " ")
 616                                 .indexOf( match ) > -1;
 617                 },
 618                 ATTR: function(elem, match){
 619                         var name = match[1],
 620                                 result = Expr.attrHandle[ name ] ?
 621                                         Expr.attrHandle[ name ]( elem ) :
 622                                         elem[ name ] != null ?
 623                                                 elem[ name ] :
 624                                                 elem.getAttribute( name ),
 625                                 value = result + "",
 626                                 type = match[2],
 627                                 check = match[4];
 628
 629                         return result == null ?
 630                                 type === "!=" :
 631                                 type === "=" ?
 632                                 value === check :
 633                                 type === "*=" ?
 634                                 value.indexOf(check) >= 0 :
 635                                 type === "~=" ?
 636                                 (" " + value + " ").indexOf(check) >= 0 :
 637                                 !check ?
 638                                 value && result !== false :
 639                                 type === "!=" ?
 640                                 value != check :
 641                                 type === "^=" ?
 642                                 value.indexOf(check) === 0 :
 643                                 type === "$=" ?
 644                                 value.substr(value.length - check.length) === check :
 645                                 type === "|=" ?
 646                                 value === check || value.substr(0, check.length + 1) === check + "-" :
 647                                 false;
 648                 },
 649                 POS: function(elem, match, i, array){
 650                         var name = match[2], filter = Expr.setFilters[ name ];
 651
 652                         if ( filter ) {
 653                                 return filter( elem, i, match, array );
 654                         }
 655                 }
 656         }
 657 };
 658
 659 var origPOS = Expr.match.POS;
 660
 661 for ( var type in Expr.match ) {
 662         Expr.match[ type ] = new RegExp( Expr.match[ type ].source + /(?![^\[]*\])(?![^\(]*\))/.source );
 663 }
 664
 665 var makeArray = function(array, results) {
 666         array = Array.prototype.slice.call( array );
 667
 668         if ( results ) {
 669                 arrayPush.apply( results, array );
 670                 return results;
 671         }
 672
 673         return array;
 674 };
 675
 676 // Perform a simple check to determine if the browser is capable of
 677 // converting a NodeList to an array using builtin methods.
 678 try {
 679         Array.prototype.slice.call( document.documentElement.childNodes );
 680
 681 // Provide a fallback method if it does not work
 682 } catch(e){
 683         makeArray = function(array, results) {
 684                 var ret = results || [];
 685
 686                 if ( toString.call(array) === "[object Array]" ) {
 687                         Array.prototype.push.apply( ret, array );
 688                 } else {
 689                         if ( typeof array.length === "number" ) {
 690                                 for ( var i = 0, l = array.length; i < l; i++ ) {
 691                                         ret.push( array[i] );
 692                                 }
 693                         } else {
 694                                 for ( var i = 0; array[i]; i++ ) {
 695                                         ret.push( array[i] );
 696                                 }
 697                         }
 698                 }
 699
 700                 return ret;
 701         };
 702 }
 703
 704 var sortOrder;
 705
 706 if ( document.documentElement.compareDocumentPosition ) {
 707         sortOrder = function( a, b ) {
 708                 var ret = a.compareDocumentPosition(b) & 4 ? -1 : a === b ? 0 : 1;
 709                 if ( ret === 0 ) {
 710                         hasDuplicate = true;
 711                 }
 712                 return ret;
 713         };
 714 } else if ( "sourceIndex" in document.documentElement ) {
 715         sortOrder = function( a, b ) {
 716                 var ret = a.sourceIndex - b.sourceIndex;
 717                 if ( ret === 0 ) {
 718                         hasDuplicate = true;
 719                 }
 720                 return ret;
 721         };
 722 } else if ( document.createRange ) {
 723         sortOrder = function( a, b ) {
 724                 var aRange = a.ownerDocument.createRange(), bRange = b.ownerDocument.createRange();
 725                 aRange.selectNode(a);
 726                 aRange.collapse(true);
 727                 bRange.selectNode(b);
 728                 bRange.collapse(true);
 729                 var ret = aRange.compareBoundaryPoints(Range.START_TO_END, bRange);
 730                 if ( ret === 0 ) {
 731                         hasDuplicate = true;
 732                 }
 733                 return ret;
 734         };
 735 }
 736
 737 // Check to see if the browser returns elements by name when
 738 // querying by getElementById (and provide a workaround)
 739 (function(){
 740         // We're going to inject a fake input element with a specified name
 741         var form = document.createElement("form"),
 742                 id = "script" + (new Date).getTime();
 743         form.innerHTML = "<input name='" + id + "'/>";
 744
 745         // Inject it into the root element, check its status, and remove it quickly
 746         var root = document.documentElement;
 747         root.insertBefore( form, root.firstChild );
 748
 749         // The workaround has to do additional checks after a getElementById
 750         // Which slows things down for other browsers (hence the branching)
 751         if ( !!document.getElementById( id ) ) {
 752                 Expr.find.ID = function(match, context, isXML){
 753                         if ( typeof context.getElementById !== "undefined" && !isXML ) {
 754                                 var m = context.getElementById(match[1]);
 755                                 return m ? m.id === match[1] || typeof m.getAttributeNode !== "undefined" && m.getAttributeNode("id").nodeValue === match[1] ? [m] : undefined : [];
 756                         }
 757                 };
 758
 759                 Expr.filter.ID = function(elem, match){
 760                         var node = typeof elem.getAttributeNode !== "undefined" && elem.getAttributeNode("id");
 761                         return elem.nodeType === 1 && node && node.nodeValue === match;
 762                 };
 763         }
 764
 765         root.removeChild( form );
 766 })();
 767
 768 (function(){
 769         // Check to see if the browser returns only elements
 770         // when doing getElementsByTagName("*")
 771
 772         // Create a fake element
 773         var div = document.createElement("div");
 774         div.appendChild( document.createComment("") );
 775
 776         // Make sure no comments are found
 777         if ( div.getElementsByTagName("*").length > 0 ) {
 778                 Expr.find.TAG = function(match, context){
 779                         var results = context.getElementsByTagName(match[1]);
 780
 781                         // Filter out possible comments
 782                         if ( match[1] === "*" ) {
 783                                 var tmp = [];
 784
 785                                 for ( var i = 0; results[i]; i++ ) {
 786                                         if ( results[i].nodeType === 1 ) {
 787                                                 tmp.push( results[i] );
 788                                         }
 789                                 }
 790
 791                                 results = tmp;
 792                         }
 793
 794                         return results;
 795                 };
 796         }
 797
 798         // Check to see if an attribute returns normalized href attributes
 799         div.innerHTML = "<a href='#'></a>";
 800         if ( div.firstChild && typeof div.firstChild.getAttribute !== "undefined" &&
 801                         div.firstChild.getAttribute("href") !== "#" ) {
 802                 Expr.attrHandle.href = function(elem){
 803                         return elem.getAttribute("href", 2);
 804                 };
 805         }
 806 })();
 807
 808 if ( document.querySelectorAll ) (function(){
 809         var oldSizzle = Sizzle, div = document.createElement("div");
 810         div.innerHTML = "<p class='TEST'></p>";
 811
 812         // Safari can't handle uppercase or unicode characters when
 813         // in quirks mode.
 814         if ( div.querySelectorAll && div.querySelectorAll(".TEST").length === 0 ) {
 815                 return;
 816         }
 817
 818         Sizzle = function(query, context, extra, seed){
 819                 context = context || document;
 820
 821                 // Only use querySelectorAll on non-XML documents
 822                 // (ID selectors don't work in non-HTML documents)
 823                 if ( !seed && context.nodeType === 9 && !isXML(context) ) {
 824                         try {
 825                                 return makeArray( context.querySelectorAll(query), extra );
 826                         } catch(e){}
 827                 }
 828
 829                 return oldSizzle(query, context, extra, seed);
 830         };
 831
 832         for ( var prop in oldSizzle ) {
 833                 Sizzle[ prop ] = oldSizzle[ prop ];
 834         }
 835 })();
 836
 837 if ( document.getElementsByClassName && document.documentElement.getElementsByClassName ) (function(){
 838         var div = document.createElement("div");
 839         div.innerHTML = "<div class='test e'></div><div class='test'></div>";
 840
 841         // Opera can't find a second classname (in 9.6)
 842         if ( div.getElementsByClassName("e").length === 0 )
 843                 return;
 844
 845         // Safari caches class attributes, doesn't catch changes (in 3.2)
 846         div.lastChild.className = "e";
 847
 848         if ( div.getElementsByClassName("e").length === 1 )
 849                 return;
 850
 851         Expr.order.splice(1, 0, "CLASS");
 852         Expr.find.CLASS = function(match, context, isXML) {
 853                 if ( typeof context.getElementsByClassName !== "undefined" && !isXML ) {
 854                         return context.getElementsByClassName(match[1]);
 855                 }
 856         };
 857 })();
 858
 859 function dirNodeCheck( dir, cur, doneName, checkSet, nodeCheck, isXML ) {
 860         var sibDir = dir == "previousSibling" && !isXML;
 861         for ( var i = 0, l = checkSet.length; i < l; i++ ) {
 862                 var elem = checkSet[i];
 863                 if ( elem ) {
 864                         if ( sibDir && elem.nodeType === 1 ){
 865                                 elem.sizcache = doneName;
 866                                 elem.sizset = i;
 867                         }
 868                         elem = elem[dir];
 869                         var match = false;
 870
 871                         while ( elem ) {
 872                                 if ( elem.sizcache === doneName ) {
 873                                         match = checkSet[elem.sizset];
 874                                         break;
 875                                 }
 876
 877                                 if ( elem.nodeType === 1 && !isXML ){
 878                                         elem.sizcache = doneName;
 879                                         elem.sizset = i;
 880                                 }
 881
 882                                 if ( elem.nodeName === cur ) {
 883                                         match = elem;
 884                                         break;
 885                                 }
 886
 887                                 elem = elem[dir];
 888                         }
 889
 890                         checkSet[i] = match;
 891                 }
 892         }
 893 }
 894
 895 function dirCheck( dir, cur, doneName, checkSet, nodeCheck, isXML ) {
 896         var sibDir = dir == "previousSibling" && !isXML;
 897         for ( var i = 0, l = checkSet.length; i < l; i++ ) {
 898                 var elem = checkSet[i];
 899                 if ( elem ) {
 900                         if ( sibDir && elem.nodeType === 1 ) {
 901                                 elem.sizcache = doneName;
 902                                 elem.sizset = i;
 903                         }
 904                         elem = elem[dir];
 905                         var match = false;
 906
 907                         while ( elem ) {
 908                                 if ( elem.sizcache === doneName ) {
 909                                         match = checkSet[elem.sizset];
 910                                         break;
 911                                 }
 912
 913                                 if ( elem.nodeType === 1 ) {
 914                                         if ( !isXML ) {
 915                                                 elem.sizcache = doneName;
 916                                                 elem.sizset = i;
 917                                         }
 918                                         if ( typeof cur !== "string" ) {
 919                                                 if ( elem === cur ) {
 920                                                         match = true;
 921                                                         break;
 922                                                 }
 923
 924                                         } else if ( Sizzle.filter( cur, [elem] ).length > 0 ) {
 925                                                 match = elem;
 926                                                 break;
 927                                         }
 928                                 }
 929
 930                                 elem = elem[dir];
 931                         }
 932
 933                         checkSet[i] = match;
 934                 }
 935         }
 936 }
 937
 938 var contains = document.compareDocumentPosition ?  function(a, b){
 939         return a.compareDocumentPosition(b) & 16;
 940 } : function(a, b){
 941         return a !== b && (a.contains ? a.contains(b) : true);
 942 };
 943
 944 var isXML = function(elem){
 945         return elem.nodeType === 9 && elem.documentElement.nodeName !== "HTML" ||
 946                 !!elem.ownerDocument && elem.ownerDocument.documentElement.nodeName !== "HTML";
 947 };
 948
 949 var posProcess = function(selector, context){
 950         var tmpSet = [], later = "", match,
 951                 root = context.nodeType ? [context] : context;
 952
 953         // Position selectors must be done after the filter
 954         // And so must :not(positional) so we move all PSEUDOs to the end
 955         while ( (match = Expr.match.PSEUDO.exec( selector )) ) {
 956                 later += match[0];
 957                 selector = selector.replace( Expr.match.PSEUDO, "" );
 958         }
 959
 960         selector = Expr.relative[selector] ? selector + "*" : selector;
 961
 962         for ( var i = 0, l = root.length; i < l; i++ ) {
 963                 Sizzle( selector, root[i], tmpSet );
 964         }
 965
 966         return Sizzle.filter( later, tmpSet );
 967 };
 968
 969 // EXPOSE
 970 jQuery.find = Sizzle;
 971 jQuery.expr = Sizzle.selectors;
 972 jQuery.expr[":"] = jQuery.expr.filters;
 973
 974 Sizzle.selectors.filters.hidden = function(elem){
 975         return elem.offsetWidth === 0 || elem.offsetHeight === 0;
 976 };
 977
 978 Sizzle.selectors.filters.visible = function(elem){
 979         return elem.offsetWidth > 0 || elem.offsetHeight > 0;
 980 };
 981
 982 Sizzle.selectors.filters.animated = function(elem){
 983         return jQuery.grep(jQuery.timers, function(fn){
 984                 return elem === fn.elem;
 985         }).length;
 986 };
 987
 988 jQuery.filter = jQuery.multiFilter = function( expr, elems, not ) {
 989         if ( not ) {
 990                 expr = ":not(" + expr + ")";
 991         }
 992
 993         return Sizzle.matches(expr, elems);
 994 };
 995
 996 jQuery.dir = function( elem, dir ){
 997         var matched = [], cur = elem[dir];
 998         while ( cur && cur != document ) {
 999                 if ( cur.nodeType == 1 )
1000                         matched.push( cur );
1001                 cur = cur[dir];
1002         }
1003         return matched;
1004 };
1005
1006 jQuery.nth = function(cur, result, dir, elem){
1007         result = result || 1;
1008         var num = 0;
1009
1010         for ( ; cur; cur = cur[dir] )
1011                 if ( cur.nodeType == 1 && ++num == result )
1012                         break;
1013
1014         return cur;
1015 };
1016
1017 jQuery.sibling = function(n, elem){
1018         var r = [];
1019
1020         for ( ; n; n = n.nextSibling ) {
1021                 if ( n.nodeType == 1 && n != elem )
1022                         r.push( n );
1023         }
1024
1025         return r;
1026 };
1027
1028 return;
1029
1030 window.Sizzle = Sizzle;
1031
1032 })();