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         hasDuplicate = false;
  13
  14 var Sizzle = function(selector, context, results, seed) {
  15         results = results || [];
  16         var origContext = context = context || document;
  17
  18         if ( context.nodeType !== 1 && context.nodeType !== 9 ) {
  19                 return [];
  20         }
  21
  22         if ( !selector || typeof selector !== "string" ) {
  23                 return results;
  24         }
  25
  26         var parts = [], m, set, checkSet, check, mode, extra, prune = true, contextXML = isXML(context);
  27
  28         // Reset the position of the chunker regexp (start from head)
  29         chunker.lastIndex = 0;
  30
  31         while ( (m = chunker.exec(selector)) !== null ) {
  32                 parts.push( m[1] );
  33
  34                 if ( m[2] ) {
  35                         extra = RegExp.rightContext;
  36                         break;
  37                 }
  38         }
  39
  40         if ( parts.length > 1 && origPOS.exec( selector ) ) {
  41                 if ( parts.length === 2 && Expr.relative[ parts[0] ] ) {
  42                         set = posProcess( parts[0] + parts[1], context );
  43                 } else {
  44                         set = Expr.relative[ parts[0] ] ?
  45                                 [ context ] :
  46                                 Sizzle( parts.shift(), context );
  47
  48                         while ( parts.length ) {
  49                                 selector = parts.shift();
  50
  51                                 if ( Expr.relative[ selector ] )
  52                                         selector += parts.shift();
  53
  54                                 set = posProcess( selector, set );
  55                         }
  56                 }
  57         } else {
  58                 // Take a shortcut and set the context if the root selector is an ID
  59                 // (but not if it'll be faster if the inner selector is an ID)
  60                 if ( !seed && parts.length > 1 && context.nodeType === 9 && !contextXML &&
  61                                 Expr.match.ID.test(parts[0]) && !Expr.match.ID.test(parts[parts.length - 1]) ) {
  62                         var ret = Sizzle.find( parts.shift(), context, contextXML );
  63                         context = ret.expr ? Sizzle.filter( ret.expr, ret.set )[0] : ret.set[0];
  64                 }
  65
  66                 if ( context ) {
  67                         var ret = seed ?
  68                                 { expr: parts.pop(), set: makeArray(seed) } :
  69                                 Sizzle.find( parts.pop(), parts.length === 1 && (parts[0] === "~" || parts[0] === "+") && context.parentNode ? context.parentNode : context, contextXML );
  70                         set = ret.expr ? Sizzle.filter( ret.expr, ret.set ) : ret.set;
  71
  72                         if ( parts.length > 0 ) {
  73                                 checkSet = makeArray(set);
  74                         } else {
  75                                 prune = false;
  76                         }
  77
  78                         while ( parts.length ) {
  79                                 var cur = parts.pop(), pop = cur;
  80
  81                                 if ( !Expr.relative[ cur ] ) {
  82                                         cur = "";
  83                                 } else {
  84                                         pop = parts.pop();
  85                                 }
  86
  87                                 if ( pop == null ) {
  88                                         pop = context;
  89                                 }
  90
  91                                 Expr.relative[ cur ]( checkSet, pop, contextXML );
  92                         }
  93                 } else {
  94                         checkSet = parts = [];
  95                 }
  96         }
  97
  98         if ( !checkSet ) {
  99                 checkSet = set;
 100         }
 101
 102         if ( !checkSet ) {
 103                 throw "Syntax error, unrecognized expression: " + (cur || selector);
 104         }
 105
 106         if ( toString.call(checkSet) === "[object Array]" ) {
 107                 if ( !prune ) {
 108                         results.push.apply( results, checkSet );
 109                 } else if ( context && context.nodeType === 1 ) {
 110                         for ( var i = 0; checkSet[i] != null; i++ ) {
 111                                 if ( checkSet[i] && (checkSet[i] === true || checkSet[i].nodeType === 1 && contains(context, checkSet[i])) ) {
 112                                         results.push( set[i] );
 113                                 }
 114                         }
 115                 } else {
 116                         for ( var i = 0; checkSet[i] != null; i++ ) {
 117                                 if ( checkSet[i] && checkSet[i].nodeType === 1 ) {
 118                                         results.push( set[i] );
 119                                 }
 120                         }
 121                 }
 122         } else {
 123                 makeArray( checkSet, results );
 124         }
 125
 126         if ( extra ) {
 127                 Sizzle( extra, origContext, results, seed );
 128                 Sizzle.uniqueSort( results );
 129         }
 130
 131         return results;
 132 };
 133
 134 Sizzle.uniqueSort = function(results){
 135         if ( sortOrder ) {
 136                 hasDuplicate = false;
 137                 results.sort(sortOrder);
 138
 139                 if ( hasDuplicate ) {
 140                         for ( var i = 1; i < results.length; i++ ) {
 141                                 if ( results[i] === results[i-1] ) {
 142                                         results.splice(i--, 1);
 143                                 }
 144                         }
 145                 }
 146         }
 147 };
 148
 149 Sizzle.matches = function(expr, set){
 150         return Sizzle(expr, null, null, set);
 151 };
 152
 153 Sizzle.find = function(expr, context, isXML){
 154         var set, match;
 155
 156         if ( !expr ) {
 157                 return [];
 158         }
 159
 160         for ( var i = 0, l = Expr.order.length; i < l; i++ ) {
 161                 var type = Expr.order[i], match;
 162
 163                 if ( (match = Expr.match[ type ].exec( expr )) ) {
 164                         var left = RegExp.leftContext;
 165
 166                         if ( left.substr( left.length - 1 ) !== "\\" ) {
 167                                 match[1] = (match[1] || "").replace(/\\/g, "");
 168                                 set = Expr.find[ type ]( match, context, isXML );
 169                                 if ( set != null ) {
 170                                         expr = expr.replace( Expr.match[ type ], "" );
 171                                         break;
 172                                 }
 173                         }
 174                 }
 175         }
 176
 177         if ( !set ) {
 178                 set = context.getElementsByTagName("*");
 179         }
 180
 181         return {set: set, expr: expr};
 182 };
 183
 184 Sizzle.filter = function(expr, set, inplace, not){
 185         var old = expr, result = [], curLoop = set, match, anyFound,
 186                 isXMLFilter = set && set[0] && isXML(set[0]);
 187
 188         while ( expr && set.length ) {
 189                 for ( var type in Expr.filter ) {
 190                         if ( (match = Expr.match[ type ].exec( expr )) != null ) {
 191                                 var filter = Expr.filter[ type ], found, item;
 192                                 anyFound = false;
 193
 194                                 if ( curLoop == result ) {
 195                                         result = [];
 196                                 }
 197
 198                                 if ( Expr.preFilter[ type ] ) {
 199                                         match = Expr.preFilter[ type ]( match, curLoop, inplace, result, not, isXMLFilter );
 200
 201                                         if ( !match ) {
 202                                                 anyFound = found = true;
 203                                         } else if ( match === true ) {
 204                                                 continue;
 205                                         }
 206                                 }
 207
 208                                 if ( match ) {
 209                                         for ( var i = 0; (item = curLoop[i]) != null; i++ ) {
 210                                                 if ( item ) {
 211                                                         found = filter( item, match, i, curLoop );
 212                                                         var pass = not ^ !!found;
 213
 214                                                         if ( inplace && found != null ) {
 215                                                                 if ( pass ) {
 216                                                                         anyFound = true;
 217                                                                 } else {
 218                                                                         curLoop[i] = false;
 219                                                                 }
 220                                                         } else if ( pass ) {
 221                                                                 result.push( item );
 222                                                                 anyFound = true;
 223                                                         }
 224                                                 }
 225                                         }
 226                                 }
 227
 228                                 if ( found !== undefined ) {
 229                                         if ( !inplace ) {
 230                                                 curLoop = result;
 231                                         }
 232
 233                                         expr = expr.replace( Expr.match[ type ], "" );
 234
 235                                         if ( !anyFound ) {
 236                                                 return [];
 237                                         }
 238
 239                                         break;
 240                                 }
 241                         }
 242                 }
 243
 244                 // Improper expression
 245                 if ( expr == old ) {
 246                         if ( anyFound == null ) {
 247                                 throw "Syntax error, unrecognized expression: " + expr;
 248                         } else {
 249                                 break;
 250                         }
 251                 }
 252
 253                 old = expr;
 254         }
 255
 256         return curLoop;
 257 };
 258
 259 var Expr = Sizzle.selectors = {
 260         order: [ "ID", "NAME", "TAG" ],
 261         match: {
 262                 ID: /#((?:[\w\u00c0-\uFFFF_-]|\\.)+)/,
 263                 CLASS: /\.((?:[\w\u00c0-\uFFFF_-]|\\.)+)/,
 264                 NAME: /\[name=['"]*((?:[\w\u00c0-\uFFFF_-]|\\.)+)['"]*\]/,
 265                 ATTR: /\[\s*((?:[\w\u00c0-\uFFFF_-]|\\.)+)\s*(?:(\S?=)\s*(['"]*)(.*?)\3|)\s*\]/,
 266                 TAG: /^((?:[\w\u00c0-\uFFFF\*_-]|\\.)+)/,
 267                 CHILD: /:(only|nth|last|first)-child(?:\((even|odd|[\dn+-]*)\))?/,
 268                 POS: /:(nth|eq|gt|lt|first|last|even|odd)(?:\((\d*)\))?(?=[^-]|$)/,
 269                 PSEUDO: /:((?:[\w\u00c0-\uFFFF_-]|\\.)+)(?:\((['"]*)((?:\([^\)]+\)|[^\2\(\)]*)+)\2\))?/
 270         },
 271         attrMap: {
 272                 "class": "className",
 273                 "for": "htmlFor"
 274         },
 275         attrHandle: {
 276                 href: function(elem){
 277                         return elem.getAttribute("href");
 278                 }
 279         },
 280         relative: {
 281                 "+": function(checkSet, part, isXML){
 282                         var isPartStr = typeof part === "string",
 283                                 isTag = isPartStr && !/\W/.test(part),
 284                                 isPartStrNotTag = isPartStr && !isTag;
 285
 286                         if ( isTag && !isXML ) {
 287                                 part = part.toUpperCase();
 288                         }
 289
 290                         for ( var i = 0, l = checkSet.length, elem; i < l; i++ ) {
 291                                 if ( (elem = checkSet[i]) ) {
 292                                         while ( (elem = elem.previousSibling) && elem.nodeType !== 1 ) {}
 293
 294                                         checkSet[i] = isPartStrNotTag || elem && elem.nodeName === part ?
 295                                                 elem || false :
 296                                                 elem === part;
 297                                 }
 298                         }
 299
 300                         if ( isPartStrNotTag ) {
 301                                 Sizzle.filter( part, checkSet, true );
 302                         }
 303                 },
 304                 ">": function(checkSet, part, isXML){
 305                         var isPartStr = typeof part === "string";
 306
 307                         if ( isPartStr && !/\W/.test(part) ) {
 308                                 part = isXML ? part : part.toUpperCase();
 309
 310                                 for ( var i = 0, l = checkSet.length; i < l; i++ ) {
 311                                         var elem = checkSet[i];
 312                                         if ( elem ) {
 313                                                 var parent = elem.parentNode;
 314                                                 checkSet[i] = parent.nodeName === part ? parent : false;
 315                                         }
 316                                 }
 317                         } else {
 318                                 for ( var i = 0, l = checkSet.length; i < l; i++ ) {
 319                                         var elem = checkSet[i];
 320                                         if ( elem ) {
 321                                                 checkSet[i] = isPartStr ?
 322                                                         elem.parentNode :
 323                                                         elem.parentNode === part;
 324                                         }
 325                                 }
 326
 327                                 if ( isPartStr ) {
 328                                         Sizzle.filter( part, checkSet, true );
 329                                 }
 330                         }
 331                 },
 332                 "": function(checkSet, part, isXML){
 333                         var doneName = done++, checkFn = dirCheck;
 334
 335                         if ( !/\W/.test(part) ) {
 336                                 var nodeCheck = part = isXML ? part : part.toUpperCase();
 337                                 checkFn = dirNodeCheck;
 338                         }
 339
 340                         checkFn("parentNode", part, doneName, checkSet, nodeCheck, isXML);
 341                 },
 342                 "~": function(checkSet, part, isXML){
 343                         var doneName = done++, checkFn = dirCheck;
 344
 345                         if ( typeof part === "string" && !/\W/.test(part) ) {
 346                                 var nodeCheck = part = isXML ? part : part.toUpperCase();
 347                                 checkFn = dirNodeCheck;
 348                         }
 349
 350                         checkFn("previousSibling", part, doneName, checkSet, nodeCheck, isXML);
 351                 }
 352         },
 353         find: {
 354                 ID: function(match, context, isXML){
 355                         if ( typeof context.getElementById !== "undefined" && !isXML ) {
 356                                 var m = context.getElementById(match[1]);
 357                                 return m ? [m] : [];
 358                         }
 359                 },
 360                 NAME: function(match, context, isXML){
 361                         if ( typeof context.getElementsByName !== "undefined" ) {
 362                                 var ret = [], results = context.getElementsByName(match[1]);
 363
 364                                 for ( var i = 0, l = results.length; i < l; i++ ) {
 365                                         if ( results[i].getAttribute("name") === match[1] ) {
 366                                                 ret.push( results[i] );
 367                                         }
 368                                 }
 369
 370                                 return ret.length === 0 ? null : ret;
 371                         }
 372                 },
 373                 TAG: function(match, context){
 374                         return context.getElementsByTagName(match[1]);
 375                 }
 376         },
 377         preFilter: {
 378                 CLASS: function(match, curLoop, inplace, result, not, isXML){
 379                         match = " " + match[1].replace(/\\/g, "") + " ";
 380
 381                         if ( isXML ) {
 382                                 return match;
 383                         }
 384
 385                         for ( var i = 0, elem; (elem = curLoop[i]) != null; i++ ) {
 386                                 if ( elem ) {
 387                                         if ( not ^ (elem.className && (" " + elem.className + " ").indexOf(match) >= 0) ) {
 388                                                 if ( !inplace )
 389                                                         result.push( elem );
 390                                         } else if ( inplace ) {
 391                                                 curLoop[i] = false;
 392                                         }
 393                                 }
 394                         }
 395
 396                         return false;
 397                 },
 398                 ID: function(match){
 399                         return match[1].replace(/\\/g, "");
 400                 },
 401                 TAG: function(match, curLoop){
 402                         for ( var i = 0; curLoop[i] === false; i++ ){}
 403                         return curLoop[i] && isXML(curLoop[i]) ? match[1] : match[1].toUpperCase();
 404                 },
 405                 CHILD: function(match){
 406                         if ( match[1] == "nth" ) {
 407                                 // parse equations like 'even', 'odd', '5', '2n', '3n+2', '4n-1', '-n+6'
 408                                 var test = /(-?)(\d*)n((?:\+|-)?\d*)/.exec(
 409                                         match[2] == "even" && "2n" || match[2] == "odd" && "2n+1" ||
 410                                         !/\D/.test( match[2] ) && "0n+" + match[2] || match[2]);
 411
 412                                 // calculate the numbers (first)n+(last) including if they are negative
 413                                 match[2] = (test[1] + (test[2] || 1)) - 0;
 414                                 match[3] = test[3] - 0;
 415                         }
 416
 417                         // TODO: Move to normal caching system
 418                         match[0] = done++;
 419
 420                         return match;
 421                 },
 422                 ATTR: function(match, curLoop, inplace, result, not, isXML){
 423                         var name = match[1].replace(/\\/g, "");
 424
 425                         if ( !isXML && Expr.attrMap[name] ) {
 426                                 match[1] = Expr.attrMap[name];
 427                         }
 428
 429                         if ( match[2] === "~=" ) {
 430                                 match[4] = " " + match[4] + " ";
 431                         }
 432
 433                         return match;
 434                 },
 435                 PSEUDO: function(match, curLoop, inplace, result, not){
 436                         if ( match[1] === "not" ) {
 437                                 // If we're dealing with a complex expression, or a simple one
 438                                 if ( chunker.exec(match[3]).length > 1 || /^\w/.test(match[3]) ) {
 439                                         match[3] = Sizzle(match[3], null, null, curLoop);
 440                                 } else {
 441                                         var ret = Sizzle.filter(match[3], curLoop, inplace, true ^ not);
 442                                         if ( !inplace ) {
 443                                                 result.push.apply( result, ret );
 444                                         }
 445                                         return false;
 446                                 }
 447                         } else if ( Expr.match.POS.test( match[0] ) || Expr.match.CHILD.test( match[0] ) ) {
 448                                 return true;
 449                         }
 450
 451                         return match;
 452                 },
 453                 POS: function(match){
 454                         match.unshift( true );
 455                         return match;
 456                 }
 457         },
 458         filters: {
 459                 enabled: function(elem){
 460                         return elem.disabled === false && elem.type !== "hidden";
 461                 },
 462                 disabled: function(elem){
 463                         return elem.disabled === true;
 464                 },
 465                 checked: function(elem){
 466                         return elem.checked === true;
 467                 },
 468                 selected: function(elem){
 469                         // Accessing this property makes selected-by-default
 470                         // options in Safari work properly
 471                         elem.parentNode.selectedIndex;
 472                         return elem.selected === true;
 473                 },
 474                 parent: function(elem){
 475                         return !!elem.firstChild;
 476                 },
 477                 empty: function(elem){
 478                         return !elem.firstChild;
 479                 },
 480                 has: function(elem, i, match){
 481                         return !!Sizzle( match[3], elem ).length;
 482                 },
 483                 header: function(elem){
 484                         return /h\d/i.test( elem.nodeName );
 485                 },
 486                 text: function(elem){
 487                         return "text" === elem.type;
 488                 },
 489                 radio: function(elem){
 490                         return "radio" === elem.type;
 491                 },
 492                 checkbox: function(elem){
 493                         return "checkbox" === elem.type;
 494                 },
 495                 file: function(elem){
 496                         return "file" === elem.type;
 497                 },
 498                 password: function(elem){
 499                         return "password" === elem.type;
 500                 },
 501                 submit: function(elem){
 502                         return "submit" === elem.type;
 503                 },
 504                 image: function(elem){
 505                         return "image" === elem.type;
 506                 },
 507                 reset: function(elem){
 508                         return "reset" === elem.type;
 509                 },
 510                 button: function(elem){
 511                         return "button" === elem.type || elem.nodeName.toUpperCase() === "BUTTON";
 512                 },
 513                 input: function(elem){
 514                         return /input|select|textarea|button/i.test(elem.nodeName);
 515                 }
 516         },
 517         setFilters: {
 518                 first: function(elem, i){
 519                         return i === 0;
 520                 },
 521                 last: function(elem, i, match, array){
 522                         return i === array.length - 1;
 523                 },
 524                 even: function(elem, i){
 525                         return i % 2 === 0;
 526                 },
 527                 odd: function(elem, i){
 528                         return i % 2 === 1;
 529                 },
 530                 lt: function(elem, i, match){
 531                         return i < match[3] - 0;
 532                 },
 533                 gt: function(elem, i, match){
 534                         return i > match[3] - 0;
 535                 },
 536                 nth: function(elem, i, match){
 537                         return match[3] - 0 == i;
 538                 },
 539                 eq: function(elem, i, match){
 540                         return match[3] - 0 == i;
 541                 }
 542         },
 543         filter: {
 544                 PSEUDO: function(elem, match, i, array){
 545                         var name = match[1], filter = Expr.filters[ name ];
 546
 547                         if ( filter ) {
 548                                 return filter( elem, i, match, array );
 549                         } else if ( name === "contains" ) {
 550                                 return (elem.textContent || elem.innerText || "").indexOf(match[3]) >= 0;
 551                         } else if ( name === "not" ) {
 552                                 var not = match[3];
 553
 554                                 for ( var i = 0, l = not.length; i < l; i++ ) {
 555                                         if ( not[i] === elem ) {
 556                                                 return false;
 557                                         }
 558                                 }
 559
 560                                 return true;
 561                         }
 562                 },
 563                 CHILD: function(elem, match){
 564                         var type = match[1], node = elem;
 565                         switch (type) {
 566                                 case 'only':
 567                                 case 'first':
 568                                         while ( (node = node.previousSibling) )  {
 569                                                 if ( node.nodeType === 1 ) return false;
 570                                         }
 571                                         if ( type == 'first') return true;
 572                                         node = elem;
 573                                 case 'last':
 574                                         while ( (node = node.nextSibling) )  {
 575                                                 if ( node.nodeType === 1 ) return false;
 576                                         }
 577                                         return true;
 578                                 case 'nth':
 579                                         var first = match[2], last = match[3];
 580
 581                                         if ( first == 1 && last == 0 ) {
 582                                                 return true;
 583                                         }
 584
 585                                         var doneName = match[0],
 586                                                 parent = elem.parentNode;
 587
 588                                         if ( parent && (parent.sizcache !== doneName || !elem.nodeIndex) ) {
 589                                                 var count = 0;
 590                                                 for ( node = parent.firstChild; node; node = node.nextSibling ) {
 591                                                         if ( node.nodeType === 1 ) {
 592                                                                 node.nodeIndex = ++count;
 593                                                         }
 594                                                 }
 595                                                 parent.sizcache = doneName;
 596                                         }
 597
 598                                         var diff = elem.nodeIndex - last;
 599                                         if ( first == 0 ) {
 600                                                 return diff == 0;
 601                                         } else {
 602                                                 return ( diff % first == 0 && diff / first >= 0 );
 603                                         }
 604                         }
 605                 },
 606                 ID: function(elem, match){
 607                         return elem.nodeType === 1 && elem.getAttribute("id") === match;
 608                 },
 609                 TAG: function(elem, match){
 610                         return (match === "*" && elem.nodeType === 1) || elem.nodeName === match;
 611                 },
 612                 CLASS: function(elem, match){
 613                         return (" " + (elem.className || elem.getAttribute("class")) + " ")
 614                                 .indexOf( match ) > -1;
 615                 },
 616                 ATTR: function(elem, match){
 617                         var name = match[1],
 618                                 result = Expr.attrHandle[ name ] ?
 619                                         Expr.attrHandle[ name ]( elem ) :
 620                                         elem[ name ] != null ?
 621                                                 elem[ name ] :
 622                                                 elem.getAttribute( name ),
 623                                 value = result + "",
 624                                 type = match[2],
 625                                 check = match[4];
 626
 627                         return result == null ?
 628                                 type === "!=" :
 629                                 type === "=" ?
 630                                 value === check :
 631                                 type === "*=" ?
 632                                 value.indexOf(check) >= 0 :
 633                                 type === "~=" ?
 634                                 (" " + value + " ").indexOf(check) >= 0 :
 635                                 !check ?
 636                                 value && result !== false :
 637                                 type === "!=" ?
 638                                 value != check :
 639                                 type === "^=" ?
 640                                 value.indexOf(check) === 0 :
 641                                 type === "$=" ?
 642                                 value.substr(value.length - check.length) === check :
 643                                 type === "|=" ?
 644                                 value === check || value.substr(0, check.length + 1) === check + "-" :
 645                                 false;
 646                 },
 647                 POS: function(elem, match, i, array){
 648                         var name = match[2], filter = Expr.setFilters[ name ];
 649
 650                         if ( filter ) {
 651                                 return filter( elem, i, match, array );
 652                         }
 653                 }
 654         }
 655 };
 656
 657 var origPOS = Expr.match.POS;
 658
 659 for ( var type in Expr.match ) {
 660         Expr.match[ type ] = new RegExp( Expr.match[ type ].source + /(?![^\[]*\])(?![^\(]*\))/.source );
 661 }
 662
 663 var makeArray = function(array, results) {
 664         array = Array.prototype.slice.call( array, 0 );
 665
 666         if ( results ) {
 667                 results.push.apply( results, array );
 668                 return results;
 669         }
 670
 671         return array;
 672 };
 673
 674 // Perform a simple check to determine if the browser is capable of
 675 // converting a NodeList to an array using builtin methods.
 676 try {
 677         Array.prototype.slice.call( document.documentElement.childNodes, 0 );
 678
 679 // Provide a fallback method if it does not work
 680 } catch(e){
 681         makeArray = function(array, results) {
 682                 var ret = results || [];
 683
 684                 if ( toString.call(array) === "[object Array]" ) {
 685                         Array.prototype.push.apply( ret, array );
 686                 } else {
 687                         if ( typeof array.length === "number" ) {
 688                                 for ( var i = 0, l = array.length; i < l; i++ ) {
 689                                         ret.push( array[i] );
 690                                 }
 691                         } else {
 692                                 for ( var i = 0; array[i]; i++ ) {
 693                                         ret.push( array[i] );
 694                                 }
 695                         }
 696                 }
 697
 698                 return ret;
 699         };
 700 }
 701
 702 var sortOrder;
 703
 704 if ( document.documentElement.compareDocumentPosition ) {
 705         sortOrder = function( a, b ) {
 706                 var ret = a.compareDocumentPosition(b) & 4 ? -1 : a === b ? 0 : 1;
 707                 if ( ret === 0 ) {
 708                         hasDuplicate = true;
 709                 }
 710                 return ret;
 711         };
 712 } else if ( "sourceIndex" in document.documentElement ) {
 713         sortOrder = function( a, b ) {
 714                 var ret = a.sourceIndex - b.sourceIndex;
 715                 if ( ret === 0 ) {
 716                         hasDuplicate = true;
 717                 }
 718                 return ret;
 719         };
 720 } else if ( document.createRange ) {
 721         sortOrder = function( a, b ) {
 722                 var aRange = a.ownerDocument.createRange(), bRange = b.ownerDocument.createRange();
 723                 aRange.selectNode(a);
 724                 aRange.collapse(true);
 725                 bRange.selectNode(b);
 726                 bRange.collapse(true);
 727                 var ret = aRange.compareBoundaryPoints(Range.START_TO_END, bRange);
 728                 if ( ret === 0 ) {
 729                         hasDuplicate = true;
 730                 }
 731                 return ret;
 732         };
 733 }
 734
 735 // Check to see if the browser returns elements by name when
 736 // querying by getElementById (and provide a workaround)
 737 (function(){
 738         // We're going to inject a fake input element with a specified name
 739         var form = document.createElement("div"),
 740                 id = "script" + (new Date).getTime();
 741         form.innerHTML = "<a name='" + id + "'/>";
 742
 743         // Inject it into the root element, check its status, and remove it quickly
 744         var root = document.documentElement;
 745         root.insertBefore( form, root.firstChild );
 746
 747         // The workaround has to do additional checks after a getElementById
 748         // Which slows things down for other browsers (hence the branching)
 749         if ( !!document.getElementById( id ) ) {
 750                 Expr.find.ID = function(match, context, isXML){
 751                         if ( typeof context.getElementById !== "undefined" && !isXML ) {
 752                                 var m = context.getElementById(match[1]);
 753                                 return m ? m.id === match[1] || typeof m.getAttributeNode !== "undefined" && m.getAttributeNode("id").nodeValue === match[1] ? [m] : undefined : [];
 754                         }
 755                 };
 756
 757                 Expr.filter.ID = function(elem, match){
 758                         var node = typeof elem.getAttributeNode !== "undefined" && elem.getAttributeNode("id");
 759                         return elem.nodeType === 1 && node && node.nodeValue === match;
 760                 };
 761         }
 762
 763         root.removeChild( form );
 764         root = form = null; // release memory in IE
 765 })();
 766
 767 (function(){
 768         // Check to see if the browser returns only elements
 769         // when doing getElementsByTagName("*")
 770
 771         // Create a fake element
 772         var div = document.createElement("div");
 773         div.appendChild( document.createComment("") );
 774
 775         // Make sure no comments are found
 776         if ( div.getElementsByTagName("*").length > 0 ) {
 777                 Expr.find.TAG = function(match, context){
 778                         var results = context.getElementsByTagName(match[1]);
 779
 780                         // Filter out possible comments
 781                         if ( match[1] === "*" ) {
 782                                 var tmp = [];
 783
 784                                 for ( var i = 0; results[i]; i++ ) {
 785                                         if ( results[i].nodeType === 1 ) {
 786                                                 tmp.push( results[i] );
 787                                         }
 788                                 }
 789
 790                                 results = tmp;
 791                         }
 792
 793                         return results;
 794                 };
 795         }
 796
 797         // Check to see if an attribute returns normalized href attributes
 798         div.innerHTML = "<a href='#'></a>";
 799         if ( div.firstChild && typeof div.firstChild.getAttribute !== "undefined" &&
 800                         div.firstChild.getAttribute("href") !== "#" ) {
 801                 Expr.attrHandle.href = function(elem){
 802                         return elem.getAttribute("href", 2);
 803                 };
 804         }
 805
 806         div = null; // release memory in IE
 807 })();
 808
 809 if ( document.querySelectorAll ) (function(){
 810         var oldSizzle = Sizzle, div = document.createElement("div");
 811         div.innerHTML = "<p class='TEST'></p>";
 812
 813         // Safari can't handle uppercase or unicode characters when
 814         // in quirks mode.
 815         if ( div.querySelectorAll && div.querySelectorAll(".TEST").length === 0 ) {
 816                 return;
 817         }
 818
 819         Sizzle = function(query, context, extra, seed){
 820                 context = context || document;
 821
 822                 // Only use querySelectorAll on non-XML documents
 823                 // (ID selectors don't work in non-HTML documents)
 824                 if ( !seed && context.nodeType === 9 && !isXML(context) ) {
 825                         try {
 826                                 return makeArray( context.querySelectorAll(query), extra );
 827                         } catch(e){}
 828                 }
 829
 830                 return oldSizzle(query, context, extra, seed);
 831         };
 832
 833         for ( var prop in oldSizzle ) {
 834                 Sizzle[ prop ] = oldSizzle[ prop ];
 835         }
 836
 837         div = null; // release memory in IE
 838 })();
 839
 840 if ( document.getElementsByClassName && document.documentElement.getElementsByClassName ) (function(){
 841         var div = document.createElement("div");
 842         div.innerHTML = "<div class='test e'></div><div class='test'></div>";
 843
 844         // Opera can't find a second classname (in 9.6)
 845         if ( div.getElementsByClassName("e").length === 0 )
 846                 return;
 847
 848         // Safari caches class attributes, doesn't catch changes (in 3.2)
 849         div.lastChild.className = "e";
 850
 851         if ( div.getElementsByClassName("e").length === 1 )
 852                 return;
 853
 854         Expr.order.splice(1, 0, "CLASS");
 855         Expr.find.CLASS = function(match, context, isXML) {
 856                 if ( typeof context.getElementsByClassName !== "undefined" && !isXML ) {
 857                         return context.getElementsByClassName(match[1]);
 858                 }
 859         };
 860
 861         div = null; // release memory in IE
 862 })();
 863
 864 function dirNodeCheck( dir, cur, doneName, checkSet, nodeCheck, isXML ) {
 865         var sibDir = dir == "previousSibling" && !isXML;
 866         for ( var i = 0, l = checkSet.length; i < l; i++ ) {
 867                 var elem = checkSet[i];
 868                 if ( elem ) {
 869                         if ( sibDir && elem.nodeType === 1 ){
 870                                 elem.sizcache = doneName;
 871                                 elem.sizset = i;
 872                         }
 873                         elem = elem[dir];
 874                         var match = false;
 875
 876                         while ( elem ) {
 877                                 if ( elem.sizcache === doneName ) {
 878                                         match = checkSet[elem.sizset];
 879                                         break;
 880                                 }
 881
 882                                 if ( elem.nodeType === 1 && !isXML ){
 883                                         elem.sizcache = doneName;
 884                                         elem.sizset = i;
 885                                 }
 886
 887                                 if ( elem.nodeName === cur ) {
 888                                         match = elem;
 889                                         break;
 890                                 }
 891
 892                                 elem = elem[dir];
 893                         }
 894
 895                         checkSet[i] = match;
 896                 }
 897         }
 898 }
 899
 900 function dirCheck( dir, cur, doneName, checkSet, nodeCheck, isXML ) {
 901         var sibDir = dir == "previousSibling" && !isXML;
 902         for ( var i = 0, l = checkSet.length; i < l; i++ ) {
 903                 var elem = checkSet[i];
 904                 if ( elem ) {
 905                         if ( sibDir && elem.nodeType === 1 ) {
 906                                 elem.sizcache = doneName;
 907                                 elem.sizset = i;
 908                         }
 909                         elem = elem[dir];
 910                         var match = false;
 911
 912                         while ( elem ) {
 913                                 if ( elem.sizcache === doneName ) {
 914                                         match = checkSet[elem.sizset];
 915                                         break;
 916                                 }
 917
 918                                 if ( elem.nodeType === 1 ) {
 919                                         if ( !isXML ) {
 920                                                 elem.sizcache = doneName;
 921                                                 elem.sizset = i;
 922                                         }
 923                                         if ( typeof cur !== "string" ) {
 924                                                 if ( elem === cur ) {
 925                                                         match = true;
 926                                                         break;
 927                                                 }
 928
 929                                         } else if ( Sizzle.filter( cur, [elem] ).length > 0 ) {
 930                                                 match = elem;
 931                                                 break;
 932                                         }
 933                                 }
 934
 935                                 elem = elem[dir];
 936                         }
 937
 938                         checkSet[i] = match;
 939                 }
 940         }
 941 }
 942
 943 var contains = document.compareDocumentPosition ?  function(a, b){
 944         return a.compareDocumentPosition(b) & 16;
 945 } : function(a, b){
 946         return a !== b && (a.contains ? a.contains(b) : true);
 947 };
 948
 949 var isXML = function(elem){
 950         return elem.nodeType === 9 && elem.documentElement.nodeName !== "HTML" ||
 951                 !!elem.ownerDocument && elem.ownerDocument.documentElement.nodeName !== "HTML";
 952 };
 953
 954 var posProcess = function(selector, context){
 955         var tmpSet = [], later = "", match,
 956                 root = context.nodeType ? [context] : context;
 957
 958         // Position selectors must be done after the filter
 959         // And so must :not(positional) so we move all PSEUDOs to the end
 960         while ( (match = Expr.match.PSEUDO.exec( selector )) ) {
 961                 later += match[0];
 962                 selector = selector.replace( Expr.match.PSEUDO, "" );
 963         }
 964
 965         selector = Expr.relative[selector] ? selector + "*" : selector;
 966
 967         for ( var i = 0, l = root.length; i < l; i++ ) {
 968                 Sizzle( selector, root[i], tmpSet );
 969         }
 970
 971         return Sizzle.filter( later, tmpSet );
 972 };
 973
 974 // EXPOSE
 975 jQuery.find = Sizzle;
 976 jQuery.expr = Sizzle.selectors;
 977 jQuery.expr[":"] = jQuery.expr.filters;
 978
 979 Sizzle.selectors.filters.hidden = function(elem){
 980         var width = elem.offsetWidth, height = elem.offsetHeight,
 981                  force = /^tr$/i.test( elem.nodeName ); // ticket #4512
 982         return ( width === 0 && height === 0 && !force ) ?
 983                 true :
 984                         ( width !== 0 && height !== 0 && !force ) ?
 985                                 false :
 986                                         !!( jQuery.curCSS(elem, "display") === "none" );
 987 };
 988
 989 Sizzle.selectors.filters.visible = function(elem){
 990         return !Sizzle.selectors.filters.hidden(elem);
 991 };
 992
 993 Sizzle.selectors.filters.animated = function(elem){
 994         return jQuery.grep(jQuery.timers, function(fn){
 995                 return elem === fn.elem;
 996         }).length;
 997 };
 998
 999 jQuery.filter = jQuery.multiFilter = function( expr, elems, not ) {
1000         if ( not ) {
1001                 expr = ":not(" + expr + ")";
1002         }
1003
1004         return Sizzle.matches(expr, elems);
1005 };
1006
1007 jQuery.dir = function( elem, dir ){
1008         var matched = [], cur = elem[dir];
1009         while ( cur && cur != document ) {
1010                 if ( cur.nodeType == 1 )
1011                         matched.push( cur );
1012                 cur = cur[dir];
1013         }
1014         return matched;
1015 };
1016
1017 jQuery.nth = function(cur, result, dir, elem){
1018         result = result || 1;
1019         var num = 0;
1020
1021         for ( ; cur; cur = cur[dir] )
1022                 if ( cur.nodeType == 1 && ++num == result )
1023                         break;
1024
1025         return cur;
1026 };
1027
1028 jQuery.sibling = function(n, elem){
1029         var r = [];
1030
1031         for ( ; n; n = n.nextSibling ) {
1032                 if ( n.nodeType == 1 && n != elem )
1033                         r.push( n );
1034         }
1035
1036         return r;
1037 };
1038
1039 return;
1040
1041 window.Sizzle = Sizzle;
1042
1043 })();