src/selector.js

   1 /*!
   2  * Sizzle CSS Selector Engine - v1.0
   3  *  Copyright 2009, The Dojo Foundation
   4  *  Released under the MIT, BSD, and GPL Licenses.
   5  *  More information: http://sizzlejs.com/
   6  */
   7 (function(){
   8
   9 var chunker = /((?:\((?:\([^()]+\)|[^()]+)+\)|\[(?:\[[^[\]]*\]|['"][^'"]*['"]|[^[\]'"]+)+\]|\\.|[^ >+~,(\[\\]+)+|[>+~])(\s*,\s*)?/g,
  10         done = 0,
  11         toString = Object.prototype.toString;
  12
  13 var Sizzle = function(selector, context, results, seed) {
  14         results = results || [];
  15         var origContext = context = context || document;
  16
  17         if ( context.nodeType !== 1 && context.nodeType !== 9 ) {
  18                 return [];
  19         }
  20
  21         if ( !selector || typeof selector !== "string" ) {
  22                 return results;
  23         }
  24
  25         var parts = [], m, set, checkSet, check, mode, extra, prune = true, contextXML = isXML(context);
  26
  27         // Reset the position of the chunker regexp (start from head)
  28         chunker.lastIndex = 0;
  29
  30         while ( (m = chunker.exec(selector)) !== null ) {
  31                 parts.push( m[1] );
  32
  33                 if ( m[2] ) {
  34                         extra = RegExp.rightContext;
  35                         break;
  36                 }
  37         }
  38
  39         if ( parts.length > 1 && origPOS.exec( selector ) ) {
  40                 if ( parts.length === 2 && Expr.relative[ parts[0] ] ) {
  41                         set = posProcess( parts[0] + parts[1], context );
  42                 } else {
  43                         set = Expr.relative[ parts[0] ] ?
  44                                 [ context ] :
  45                                 Sizzle( parts.shift(), context );
  46
  47                         while ( parts.length ) {
  48                                 selector = parts.shift();
  49
  50                                 if ( Expr.relative[ selector ] )
  51                                         selector += parts.shift();
  52
  53                                 set = posProcess( selector, set );
  54                         }
  55                 }
  56         } else {
  57                 // Take a shortcut and set the context if the root selector is an ID
  58                 // (but not if it'll be faster if the inner selector is an ID)
  59                 if ( !seed && parts.length > 1 && context.nodeType === 9 && !contextXML &&
  60                                 Expr.match.ID.test(parts[0]) && !Expr.match.ID.test(parts[parts.length - 1]) ) {
  61                         var ret = Sizzle.find( parts.shift(), context, contextXML );
  62                         context = ret.expr ? Sizzle.filter( ret.expr, ret.set )[0] : ret.set[0];
  63                 }
  64
  65                 if ( context ) {
  66                         var ret = seed ?
  67                                 { expr: parts.pop(), set: makeArray(seed) } :
  68                                 Sizzle.find( parts.pop(), parts.length === 1 && context.parentNode ? context.parentNode : context, contextXML );
  69                         set = ret.expr ? Sizzle.filter( ret.expr, ret.set ) : ret.set;
  70
  71                         if ( parts.length > 0 ) {
  72                                 checkSet = makeArray(set);
  73                         } else {
  74                                 prune = false;
  75                         }
  76
  77                         while ( parts.length ) {
  78                                 var cur = parts.pop(), pop = cur;
  79
  80                                 if ( !Expr.relative[ cur ] ) {
  81                                         cur = "";
  82                                 } else {
  83                                         pop = parts.pop();
  84                                 }
  85
  86                                 if ( pop == null ) {
  87                                         pop = context;
  88                                 }
  89
  90                                 Expr.relative[ cur ]( checkSet, pop, contextXML );
  91                         }
  92                 } else {
  93                         checkSet = parts = [];
  94                 }
  95         }
  96
  97         if ( !checkSet ) {
  98                 checkSet = set;
  99         }
 100
 101         if ( !checkSet ) {
 102                 throw "Syntax error, unrecognized expression: " + (cur || selector);
 103         }
 104
 105         if ( toString.call(checkSet) === "[object Array]" ) {
 106                 if ( !prune ) {
 107                         results.push.apply( results, checkSet );
 108                 } else if ( context && context.nodeType === 1 ) {
 109                         for ( var i = 0; checkSet[i] != null; i++ ) {
 110                                 if ( checkSet[i] && (checkSet[i] === true || checkSet[i].nodeType === 1 && contains(context, checkSet[i])) ) {
 111                                         results.push( set[i] );
 112                                 }
 113                         }
 114                 } else {
 115                         for ( var i = 0; checkSet[i] != null; i++ ) {
 116                                 if ( checkSet[i] && checkSet[i].nodeType === 1 ) {
 117                                         results.push( set[i] );
 118                                 }
 119                         }
 120                 }
 121         } else {
 122                 makeArray( checkSet, results );
 123         }
 124
 125         if ( extra ) {
 126                 Sizzle( extra, origContext, results, seed );
 127
 128                 if ( sortOrder ) {
 129                         hasDuplicate = false;
 130                         results.sort(sortOrder);
 131
 132                         if ( hasDuplicate ) {
 133                                 for ( var i = 1; i < results.length; i++ ) {
 134                                         if ( results[i] === results[i-1] ) {
 135                                                 results.splice(i--, 1);
 136                                         }
 137                                 }
 138                         }
 139                 }
 140         }
 141
 142         return results;
 143 };
 144
 145 Sizzle.matches = function(expr, set){
 146         return Sizzle(expr, null, null, set);
 147 };
 148
 149 Sizzle.find = function(expr, context, isXML){
 150         var set, match;
 151
 152         if ( !expr ) {
 153                 return [];
 154         }
 155
 156         for ( var i = 0, l = Expr.order.length; i < l; i++ ) {
 157                 var type = Expr.order[i], match;
 158
 159                 if ( (match = Expr.match[ type ].exec( expr )) ) {
 160                         var left = RegExp.leftContext;
 161
 162                         if ( left.substr( left.length - 1 ) !== "\\" ) {
 163                                 match[1] = (match[1] || "").replace(/\\/g, "");
 164                                 set = Expr.find[ type ]( match, context, isXML );
 165                                 if ( set != null ) {
 166                                         expr = expr.replace( Expr.match[ type ], "" );
 167                                         break;
 168                                 }
 169                         }
 170                 }
 171         }
 172
 173         if ( !set ) {
 174                 set = context.getElementsByTagName("*");
 175         }
 176
 177         return {set: set, expr: expr};
 178 };
 179
 180 Sizzle.filter = function(expr, set, inplace, not){
 181         var old = expr, result = [], curLoop = set, match, anyFound,
 182                 isXMLFilter = set && set[0] && isXML(set[0]);
 183
 184         while ( expr && set.length ) {
 185                 for ( var type in Expr.filter ) {
 186                         if ( (match = Expr.match[ type ].exec( expr )) != null ) {
 187                                 var filter = Expr.filter[ type ], found, item;
 188                                 anyFound = false;
 189
 190                                 if ( curLoop == result ) {
 191                                         result = [];
 192                                 }
 193
 194                                 if ( Expr.preFilter[ type ] ) {
 195                                         match = Expr.preFilter[ type ]( match, curLoop, inplace, result, not, isXMLFilter );
 196
 197                                         if ( !match ) {
 198                                                 anyFound = found = true;
 199                                         } else if ( match === true ) {
 200                                                 continue;
 201                                         }
 202                                 }
 203
 204                                 if ( match ) {
 205                                         for ( var i = 0; (item = curLoop[i]) != null; i++ ) {
 206                                                 if ( item ) {
 207                                                         found = filter( item, match, i, curLoop );
 208                                                         var pass = not ^ !!found;
 209
 210                                                         if ( inplace && found != null ) {
 211                                                                 if ( pass ) {
 212                                                                         anyFound = true;
 213                                                                 } else {
 214                                                                         curLoop[i] = false;
 215                                                                 }
 216                                                         } else if ( pass ) {
 217                                                                 result.push( item );
 218                                                                 anyFound = true;
 219                                                         }
 220                                                 }
 221                                         }
 222                                 }
 223
 224                                 if ( found !== undefined ) {
 225                                         if ( !inplace ) {
 226                                                 curLoop = result;
 227                                         }
 228
 229                                         expr = expr.replace( Expr.match[ type ], "" );
 230
 231                                         if ( !anyFound ) {
 232                                                 return [];
 233                                         }
 234
 235                                         break;
 236                                 }
 237                         }
 238                 }
 239
 240                 // Improper expression
 241                 if ( expr == old ) {
 242                         if ( anyFound == null ) {
 243                                 throw "Syntax error, unrecognized expression: " + expr;
 244                         } else {
 245                                 break;
 246                         }
 247                 }
 248
 249                 old = expr;
 250         }
 251
 252         return curLoop;
 253 };
 254
 255 var Expr = Sizzle.selectors = {
 256         order: [ "ID", "NAME", "TAG" ],
 257         match: {
 258                 ID: /#((?:[\w\u00c0-\uFFFF_-]|\\.)+)/,
 259                 CLASS: /\.((?:[\w\u00c0-\uFFFF_-]|\\.)+)/,
 260                 NAME: /\[name=['"]*((?:[\w\u00c0-\uFFFF_-]|\\.)+)['"]*\]/,
 261                 ATTR: /\[\s*((?:[\w\u00c0-\uFFFF_-]|\\.)+)\s*(?:(\S?=)\s*(['"]*)(.*?)\3|)\s*\]/,
 262                 TAG: /^((?:[\w\u00c0-\uFFFF\*_-]|\\.)+)/,
 263                 CHILD: /:(only|nth|last|first)-child(?:\((even|odd|[\dn+-]*)\))?/,
 264                 POS: /:(nth|eq|gt|lt|first|last|even|odd)(?:\((\d*)\))?(?=[^-]|$)/,
 265                 PSEUDO: /:((?:[\w\u00c0-\uFFFF_-]|\\.)+)(?:\((['"]*)((?:\([^\)]+\)|[^\2\(\)]*)+)\2\))?/
 266         },
 267         attrMap: {
 268                 "class": "className",
 269                 "for": "htmlFor"
 270         },
 271         attrHandle: {
 272                 href: function(elem){
 273                         return elem.getAttribute("href");
 274                 }
 275         },
 276         relative: {
 277                 "+": function(checkSet, part, isXML){
 278                         var isPartStr = typeof part === "string",
 279                                 isTag = isPartStr && !/\W/.test(part),
 280                                 isPartStrNotTag = isPartStr && !isTag;
 281
 282                         if ( isTag && !isXML ) {
 283                                 part = part.toUpperCase();
 284                         }
 285
 286                         for ( var i = 0, l = checkSet.length, elem; i < l; i++ ) {
 287                                 if ( (elem = checkSet[i]) ) {
 288                                         while ( (elem = elem.previousSibling) && elem.nodeType !== 1 ) {}
 289
 290                                         checkSet[i] = isPartStrNotTag || elem && elem.nodeName === part ?
 291                                                 elem || false :
 292                                                 elem === part;
 293                                 }
 294                         }
 295
 296                         if ( isPartStrNotTag ) {
 297                                 Sizzle.filter( part, checkSet, true );
 298                         }
 299                 },
 300                 ">": function(checkSet, part, isXML){
 301                         var isPartStr = typeof part === "string";
 302
 303                         if ( isPartStr && !/\W/.test(part) ) {
 304                                 part = isXML ? part : part.toUpperCase();
 305
 306                                 for ( var i = 0, l = checkSet.length; i < l; i++ ) {
 307                                         var elem = checkSet[i];
 308                                         if ( elem ) {
 309                                                 var parent = elem.parentNode;
 310                                                 checkSet[i] = parent.nodeName === part ? parent : false;
 311                                         }
 312                                 }
 313                         } else {
 314                                 for ( var i = 0, l = checkSet.length; i < l; i++ ) {
 315                                         var elem = checkSet[i];
 316                                         if ( elem ) {
 317                                                 checkSet[i] = isPartStr ?
 318                                                         elem.parentNode :
 319                                                         elem.parentNode === part;
 320                                         }
 321                                 }
 322
 323                                 if ( isPartStr ) {
 324                                         Sizzle.filter( part, checkSet, true );
 325                                 }
 326                         }
 327                 },
 328                 "": function(checkSet, part, isXML){
 329                         var doneName = done++, checkFn = dirCheck;
 330
 331                         if ( !part.match(/\W/) ) {
 332                                 var nodeCheck = part = isXML ? part : part.toUpperCase();
 333                                 checkFn = dirNodeCheck;
 334                         }
 335
 336                         checkFn("parentNode", part, doneName, checkSet, nodeCheck, isXML);
 337                 },
 338                 "~": function(checkSet, part, isXML){
 339                         var doneName = done++, checkFn = dirCheck;
 340
 341                         if ( typeof part === "string" && !part.match(/\W/) ) {
 342                                 var nodeCheck = part = isXML ? part : part.toUpperCase();
 343                                 checkFn = dirNodeCheck;
 344                         }
 345
 346                         checkFn("previousSibling", part, doneName, checkSet, nodeCheck, isXML);
 347                 }
 348         },
 349         find: {
 350                 ID: function(match, context, isXML){
 351                         if ( typeof context.getElementById !== "undefined" && !isXML ) {
 352                                 var m = context.getElementById(match[1]);
 353                                 return m ? [m] : [];
 354                         }
 355                 },
 356                 NAME: function(match, context, isXML){
 357                         if ( typeof context.getElementsByName !== "undefined" ) {
 358                                 var ret = [], results = context.getElementsByName(match[1]);
 359
 360                                 for ( var i = 0, l = results.length; i < l; i++ ) {
 361                                         if ( results[i].getAttribute("name") === match[1] ) {
 362                                                 ret.push( results[i] );
 363                                         }
 364                                 }
 365
 366                                 return ret.length === 0 ? null : ret;
 367                         }
 368                 },
 369                 TAG: function(match, context){
 370                         return context.getElementsByTagName(match[1]);
 371                 }
 372         },
 373         preFilter: {
 374                 CLASS: function(match, curLoop, inplace, result, not, isXML){
 375                         match = " " + match[1].replace(/\\/g, "") + " ";
 376
 377                         if ( isXML ) {
 378                                 return match;
 379                         }
 380
 381                         for ( var i = 0, elem; (elem = curLoop[i]) != null; i++ ) {
 382                                 if ( elem ) {
 383                                         if ( not ^ (elem.className && (" " + elem.className + " ").indexOf(match) >= 0) ) {
 384                                                 if ( !inplace )
 385                                                         result.push( elem );
 386                                         } else if ( inplace ) {
 387                                                 curLoop[i] = false;
 388                                         }
 389                                 }
 390                         }
 391
 392                         return false;
 393                 },
 394                 ID: function(match){
 395                         return match[1].replace(/\\/g, "");
 396                 },
 397                 TAG: function(match, curLoop){
 398                         for ( var i = 0; curLoop[i] === false; i++ ){}
 399                         return curLoop[i] && isXML(curLoop[i]) ? match[1] : match[1].toUpperCase();
 400                 },
 401                 CHILD: function(match){
 402                         if ( match[1] == "nth" ) {
 403                                 // parse equations like 'even', 'odd', '5', '2n', '3n+2', '4n-1', '-n+6'
 404                                 var test = /(-?)(\d*)n((?:\+|-)?\d*)/.exec(
 405                                         match[2] == "even" && "2n" || match[2] == "odd" && "2n+1" ||
 406                                         !/\D/.test( match[2] ) && "0n+" + match[2] || match[2]);
 407
 408                                 // calculate the numbers (first)n+(last) including if they are negative
 409                                 match[2] = (test[1] + (test[2] || 1)) - 0;
 410                                 match[3] = test[3] - 0;
 411                         }
 412
 413                         // TODO: Move to normal caching system
 414                         match[0] = done++;
 415
 416                         return match;
 417                 },
 418                 ATTR: function(match, curLoop, inplace, result, not, isXML){
 419                         var name = match[1].replace(/\\/g, "");
 420
 421                         if ( !isXML && Expr.attrMap[name] ) {
 422                                 match[1] = Expr.attrMap[name];
 423                         }
 424
 425                         if ( match[2] === "~=" ) {
 426                                 match[4] = " " + match[4] + " ";
 427                         }
 428
 429                         return match;
 430                 },
 431                 PSEUDO: function(match, curLoop, inplace, result, not){
 432                         if ( match[1] === "not" ) {
 433                                 // If we're dealing with a complex expression, or a simple one
 434                                 if ( match[3].match(chunker).length > 1 || /^\w/.test(match[3]) ) {
 435                                         match[3] = Sizzle(match[3], null, null, curLoop);
 436                                 } else {
 437                                         var ret = Sizzle.filter(match[3], curLoop, inplace, true ^ not);
 438                                         if ( !inplace ) {
 439                                                 result.push.apply( result, ret );
 440                                         }
 441                                         return false;
 442                                 }
 443                         } else if ( Expr.match.POS.test( match[0] ) || Expr.match.CHILD.test( match[0] ) ) {
 444                                 return true;
 445                         }
 446
 447                         return match;
 448                 },
 449                 POS: function(match){
 450                         match.unshift( true );
 451                         return match;
 452                 }
 453         },
 454         filters: {
 455                 enabled: function(elem){
 456                         return elem.disabled === false && elem.type !== "hidden";
 457                 },
 458                 disabled: function(elem){
 459                         return elem.disabled === true;
 460                 },
 461                 checked: function(elem){
 462                         return elem.checked === true;
 463                 },
 464                 selected: function(elem){
 465                         // Accessing this property makes selected-by-default
 466                         // options in Safari work properly
 467                         elem.parentNode.selectedIndex;
 468                         return elem.selected === true;
 469                 },
 470                 parent: function(elem){
 471                         return !!elem.firstChild;
 472                 },
 473                 empty: function(elem){
 474                         return !elem.firstChild;
 475                 },
 476                 has: function(elem, i, match){
 477                         return !!Sizzle( match[3], elem ).length;
 478                 },
 479                 header: function(elem){
 480                         return /h\d/i.test( elem.nodeName );
 481                 },
 482                 text: function(elem){
 483                         return "text" === elem.type;
 484                 },
 485                 radio: function(elem){
 486                         return "radio" === elem.type;
 487                 },
 488                 checkbox: function(elem){
 489                         return "checkbox" === elem.type;
 490                 },
 491                 file: function(elem){
 492                         return "file" === elem.type;
 493                 },
 494                 password: function(elem){
 495                         return "password" === elem.type;
 496                 },
 497                 submit: function(elem){
 498                         return "submit" === elem.type;
 499                 },
 500                 image: function(elem){
 501                         return "image" === elem.type;
 502                 },
 503                 reset: function(elem){
 504                         return "reset" === elem.type;
 505                 },
 506                 button: function(elem){
 507                         return "button" === elem.type || elem.nodeName.toUpperCase() === "BUTTON";
 508                 },
 509                 input: function(elem){
 510                         return /input|select|textarea|button/i.test(elem.nodeName);
 511                 }
 512         },
 513         setFilters: {
 514                 first: function(elem, i){
 515                         return i === 0;
 516                 },
 517                 last: function(elem, i, match, array){
 518                         return i === array.length - 1;
 519                 },
 520                 even: function(elem, i){
 521                         return i % 2 === 0;
 522                 },
 523                 odd: function(elem, i){
 524                         return i % 2 === 1;
 525                 },
 526                 lt: function(elem, i, match){
 527                         return i < match[3] - 0;
 528                 },
 529                 gt: function(elem, i, match){
 530                         return i > match[3] - 0;
 531                 },
 532                 nth: function(elem, i, match){
 533                         return match[3] - 0 == i;
 534                 },
 535                 eq: function(elem, i, match){
 536                         return match[3] - 0 == i;
 537                 }
 538         },
 539         filter: {
 540                 PSEUDO: function(elem, match, i, array){
 541                         var name = match[1], filter = Expr.filters[ name ];
 542
 543                         if ( filter ) {
 544                                 return filter( elem, i, match, array );
 545                         } else if ( name === "contains" ) {
 546                                 return (elem.textContent || elem.innerText || "").indexOf(match[3]) >= 0;
 547                         } else if ( name === "not" ) {
 548                                 var not = match[3];
 549
 550                                 for ( var i = 0, l = not.length; i < l; i++ ) {
 551                                         if ( not[i] === elem ) {
 552                                                 return false;
 553                                         }
 554                                 }
 555
 556                                 return true;
 557                         }
 558                 },
 559                 CHILD: function(elem, match){
 560                         var type = match[1], node = elem;
 561                         switch (type) {
 562                                 case 'only':
 563                                 case 'first':
 564                                         while (node = node.previousSibling)  {
 565                                                 if ( node.nodeType === 1 ) return false;
 566                                         }
 567                                         if ( type == 'first') return true;
 568                                         node = elem;
 569                                 case 'last':
 570                                         while (node = node.nextSibling)  {
 571                                                 if ( node.nodeType === 1 ) return false;
 572                                         }
 573                                         return true;
 574                                 case 'nth':
 575                                         var first = match[2], last = match[3];
 576
 577                                         if ( first == 1 && last == 0 ) {
 578                                                 return true;
 579                                         }
 580
 581                                         var doneName = match[0],
 582                                                 parent = elem.parentNode;
 583
 584                                         if ( parent && (parent.sizcache !== doneName || !elem.nodeIndex) ) {
 585                                                 var count = 0;
 586                                                 for ( node = parent.firstChild; node; node = node.nextSibling ) {
 587                                                         if ( node.nodeType === 1 ) {
 588                                                                 node.nodeIndex = ++count;
 589                                                         }
 590                                                 }
 591                                                 parent.sizcache = doneName;
 592                                         }
 593
 594                                         var diff = elem.nodeIndex - last;
 595                                         if ( first == 0 ) {
 596                                                 return diff == 0;
 597                                         } else {
 598                                                 return ( diff % first == 0 && diff / first >= 0 );
 599                                         }
 600                         }
 601                 },
 602                 ID: function(elem, match){
 603                         return elem.nodeType === 1 && elem.getAttribute("id") === match;
 604                 },
 605                 TAG: function(elem, match){
 606                         return (match === "*" && elem.nodeType === 1) || elem.nodeName === match;
 607                 },
 608                 CLASS: function(elem, match){
 609                         return (" " + (elem.className || elem.getAttribute("class")) + " ")
 610                                 .indexOf( match ) > -1;
 611                 },
 612                 ATTR: function(elem, match){
 613                         var name = match[1],
 614                                 result = Expr.attrHandle[ name ] ?
 615                                         Expr.attrHandle[ name ]( elem ) :
 616                                         elem[ name ] != null ?
 617                                                 elem[ name ] :
 618                                                 elem.getAttribute( name ),
 619                                 value = result + "",
 620                                 type = match[2],
 621                                 check = match[4];
 622
 623                         return result == null ?
 624                                 type === "!=" :
 625                                 type === "=" ?
 626                                 value === check :
 627                                 type === "*=" ?
 628                                 value.indexOf(check) >= 0 :
 629                                 type === "~=" ?
 630                                 (" " + value + " ").indexOf(check) >= 0 :
 631                                 !check ?
 632                                 value && result !== false :
 633                                 type === "!=" ?
 634                                 value != check :
 635                                 type === "^=" ?
 636                                 value.indexOf(check) === 0 :
 637                                 type === "$=" ?
 638                                 value.substr(value.length - check.length) === check :
 639                                 type === "|=" ?
 640                                 value === check || value.substr(0, check.length + 1) === check + "-" :
 641                                 false;
 642                 },
 643                 POS: function(elem, match, i, array){
 644                         var name = match[2], filter = Expr.setFilters[ name ];
 645
 646                         if ( filter ) {
 647                                 return filter( elem, i, match, array );
 648                         }
 649                 }
 650         }
 651 };
 652
 653 var origPOS = Expr.match.POS;
 654
 655 for ( var type in Expr.match ) {
 656         Expr.match[ type ] = RegExp( Expr.match[ type ].source + /(?![^\[]*\])(?![^\(]*\))/.source );
 657 }
 658
 659 var makeArray = function(array, results) {
 660         array = Array.prototype.slice.call( array );
 661
 662         if ( results ) {
 663                 results.push.apply( results, array );
 664                 return results;
 665         }
 666
 667         return array;
 668 };
 669
 670 // Perform a simple check to determine if the browser is capable of
 671 // converting a NodeList to an array using builtin methods.
 672 try {
 673         Array.prototype.slice.call( document.documentElement.childNodes );
 674
 675 // Provide a fallback method if it does not work
 676 } catch(e){
 677         makeArray = function(array, results) {
 678                 var ret = results || [];
 679
 680                 if ( toString.call(array) === "[object Array]" ) {
 681                         Array.prototype.push.apply( ret, array );
 682                 } else {
 683                         if ( typeof array.length === "number" ) {
 684                                 for ( var i = 0, l = array.length; i < l; i++ ) {
 685                                         ret.push( array[i] );
 686                                 }
 687                         } else {
 688                                 for ( var i = 0; array[i]; i++ ) {
 689                                         ret.push( array[i] );
 690                                 }
 691                         }
 692                 }
 693
 694                 return ret;
 695         };
 696 }
 697
 698 var sortOrder;
 699
 700 if ( document.documentElement.compareDocumentPosition ) {
 701         sortOrder = function( a, b ) {
 702                 var ret = a.compareDocumentPosition(b) & 4 ? -1 : a === b ? 0 : 1;
 703                 if ( ret === 0 ) {
 704                         hasDuplicate = true;
 705                 }
 706                 return ret;
 707         };
 708 } else if ( "sourceIndex" in document.documentElement ) {
 709         sortOrder = function( a, b ) {
 710                 var ret = a.sourceIndex - b.sourceIndex;
 711                 if ( ret === 0 ) {
 712                         hasDuplicate = true;
 713                 }
 714                 return ret;
 715         };
 716 } else if ( document.createRange ) {
 717         sortOrder = function( a, b ) {
 718                 var aRange = a.ownerDocument.createRange(), bRange = b.ownerDocument.createRange();
 719                 aRange.selectNode(a);
 720                 aRange.collapse(true);
 721                 bRange.selectNode(b);
 722                 bRange.collapse(true);
 723                 var ret = aRange.compareBoundaryPoints(Range.START_TO_END, bRange);
 724                 if ( ret === 0 ) {
 725                         hasDuplicate = true;
 726                 }
 727                 return ret;
 728         };
 729 }
 730
 731 // Check to see if the browser returns elements by name when
 732 // querying by getElementById (and provide a workaround)
 733 (function(){
 734         // We're going to inject a fake input element with a specified name
 735         var form = document.createElement("form"),
 736                 id = "script" + (new Date).getTime();
 737         form.innerHTML = "<input name='" + id + "'/>";
 738
 739         // Inject it into the root element, check its status, and remove it quickly
 740         var root = document.documentElement;
 741         root.insertBefore( form, root.firstChild );
 742
 743         // The workaround has to do additional checks after a getElementById
 744         // Which slows things down for other browsers (hence the branching)
 745         if ( !!document.getElementById( id ) ) {
 746                 Expr.find.ID = function(match, context, isXML){
 747                         if ( typeof context.getElementById !== "undefined" && !isXML ) {
 748                                 var m = context.getElementById(match[1]);
 749                                 return m ? m.id === match[1] || typeof m.getAttributeNode !== "undefined" && m.getAttributeNode("id").nodeValue === match[1] ? [m] : undefined : [];
 750                         }
 751                 };
 752
 753                 Expr.filter.ID = function(elem, match){
 754                         var node = typeof elem.getAttributeNode !== "undefined" && elem.getAttributeNode("id");
 755                         return elem.nodeType === 1 && node && node.nodeValue === match;
 756                 };
 757         }
 758
 759         root.removeChild( form );
 760 })();
 761
 762 (function(){
 763         // Check to see if the browser returns only elements
 764         // when doing getElementsByTagName("*")
 765
 766         // Create a fake element
 767         var div = document.createElement("div");
 768         div.appendChild( document.createComment("") );
 769
 770         // Make sure no comments are found
 771         if ( div.getElementsByTagName("*").length > 0 ) {
 772                 Expr.find.TAG = function(match, context){
 773                         var results = context.getElementsByTagName(match[1]);
 774
 775                         // Filter out possible comments
 776                         if ( match[1] === "*" ) {
 777                                 var tmp = [];
 778
 779                                 for ( var i = 0; results[i]; i++ ) {
 780                                         if ( results[i].nodeType === 1 ) {
 781                                                 tmp.push( results[i] );
 782                                         }
 783                                 }
 784
 785                                 results = tmp;
 786                         }
 787
 788                         return results;
 789                 };
 790         }
 791
 792         // Check to see if an attribute returns normalized href attributes
 793         div.innerHTML = "<a href='#'></a>";
 794         if ( div.firstChild && typeof div.firstChild.getAttribute !== "undefined" &&
 795                         div.firstChild.getAttribute("href") !== "#" ) {
 796                 Expr.attrHandle.href = function(elem){
 797                         return elem.getAttribute("href", 2);
 798                 };
 799         }
 800 })();
 801
 802 if ( document.querySelectorAll ) (function(){
 803         var oldSizzle = Sizzle, div = document.createElement("div");
 804         div.innerHTML = "<p class='TEST'></p>";
 805
 806         // Safari can't handle uppercase or unicode characters when
 807         // in quirks mode.
 808         if ( div.querySelectorAll && div.querySelectorAll(".TEST").length === 0 ) {
 809                 return;
 810         }
 811
 812         Sizzle = function(query, context, extra, seed){
 813                 context = context || document;
 814
 815                 // Only use querySelectorAll on non-XML documents
 816                 // (ID selectors don't work in non-HTML documents)
 817                 if ( !seed && context.nodeType === 9 && !isXML(context) ) {
 818                         try {
 819                                 return makeArray( context.querySelectorAll(query), extra );
 820                         } catch(e){}
 821                 }
 822
 823                 return oldSizzle(query, context, extra, seed);
 824         };
 825
 826         Sizzle.find = oldSizzle.find;
 827         Sizzle.filter = oldSizzle.filter;
 828         Sizzle.selectors = oldSizzle.selectors;
 829         Sizzle.matches = oldSizzle.matches;
 830 })();
 831
 832 if ( document.getElementsByClassName && document.documentElement.getElementsByClassName ) (function(){
 833         var div = document.createElement("div");
 834         div.innerHTML = "<div class='test e'></div><div class='test'></div>";
 835
 836         // Opera can't find a second classname (in 9.6)
 837         if ( div.getElementsByClassName("e").length === 0 )
 838                 return;
 839
 840         // Safari caches class attributes, doesn't catch changes (in 3.2)
 841         div.lastChild.className = "e";
 842
 843         if ( div.getElementsByClassName("e").length === 1 )
 844                 return;
 845
 846         Expr.order.splice(1, 0, "CLASS");
 847         Expr.find.CLASS = function(match, context, isXML) {
 848                 if ( typeof context.getElementsByClassName !== "undefined" && !isXML ) {
 849                         return context.getElementsByClassName(match[1]);
 850                 }
 851         };
 852 })();
 853
 854 function dirNodeCheck( dir, cur, doneName, checkSet, nodeCheck, isXML ) {
 855         var sibDir = dir == "previousSibling" && !isXML;
 856         for ( var i = 0, l = checkSet.length; i < l; i++ ) {
 857                 var elem = checkSet[i];
 858                 if ( elem ) {
 859                         if ( sibDir && elem.nodeType === 1 ){
 860                                 elem.sizcache = doneName;
 861                                 elem.sizset = i;
 862                         }
 863                         elem = elem[dir];
 864                         var match = false;
 865
 866                         while ( elem ) {
 867                                 if ( elem.sizcache === doneName ) {
 868                                         match = checkSet[elem.sizset];
 869                                         break;
 870                                 }
 871
 872                                 if ( elem.nodeType === 1 && !isXML ){
 873                                         elem.sizcache = doneName;
 874                                         elem.sizset = i;
 875                                 }
 876
 877                                 if ( elem.nodeName === cur ) {
 878                                         match = elem;
 879                                         break;
 880                                 }
 881
 882                                 elem = elem[dir];
 883                         }
 884
 885                         checkSet[i] = match;
 886                 }
 887         }
 888 }
 889
 890 function dirCheck( dir, cur, doneName, checkSet, nodeCheck, isXML ) {
 891         var sibDir = dir == "previousSibling" && !isXML;
 892         for ( var i = 0, l = checkSet.length; i < l; i++ ) {
 893                 var elem = checkSet[i];
 894                 if ( elem ) {
 895                         if ( sibDir && elem.nodeType === 1 ) {
 896                                 elem.sizcache = doneName;
 897                                 elem.sizset = i;
 898                         }
 899                         elem = elem[dir];
 900                         var match = false;
 901
 902                         while ( elem ) {
 903                                 if ( elem.sizcache === doneName ) {
 904                                         match = checkSet[elem.sizset];
 905                                         break;
 906                                 }
 907
 908                                 if ( elem.nodeType === 1 ) {
 909                                         if ( !isXML ) {
 910                                                 elem.sizcache = doneName;
 911                                                 elem.sizset = i;
 912                                         }
 913                                         if ( typeof cur !== "string" ) {
 914                                                 if ( elem === cur ) {
 915                                                         match = true;
 916                                                         break;
 917                                                 }
 918
 919                                         } else if ( Sizzle.filter( cur, [elem] ).length > 0 ) {
 920                                                 match = elem;
 921                                                 break;
 922                                         }
 923                                 }
 924
 925                                 elem = elem[dir];
 926                         }
 927
 928                         checkSet[i] = match;
 929                 }
 930         }
 931 }
 932
 933 var contains = document.compareDocumentPosition ?  function(a, b){
 934         return a.compareDocumentPosition(b) & 16;
 935 } : function(a, b){
 936         return a !== b && (a.contains ? a.contains(b) : true);
 937 };
 938
 939 var isXML = function(elem){
 940         return elem.nodeType === 9 && elem.documentElement.nodeName !== "HTML" ||
 941                 !!elem.ownerDocument && isXML( elem.ownerDocument );
 942 };
 943
 944 var posProcess = function(selector, context){
 945         var tmpSet = [], later = "", match,
 946                 root = context.nodeType ? [context] : context;
 947
 948         // Position selectors must be done after the filter
 949         // And so must :not(positional) so we move all PSEUDOs to the end
 950         while ( (match = Expr.match.PSEUDO.exec( selector )) ) {
 951                 later += match[0];
 952                 selector = selector.replace( Expr.match.PSEUDO, "" );
 953         }
 954
 955         selector = Expr.relative[selector] ? selector + "*" : selector;
 956
 957         for ( var i = 0, l = root.length; i < l; i++ ) {
 958                 Sizzle( selector, root[i], tmpSet );
 959         }
 960
 961         return Sizzle.filter( later, tmpSet );
 962 };
 963
 964 // EXPOSE
 965 jQuery.find = Sizzle;
 966 jQuery.expr = Sizzle.selectors;
 967 jQuery.expr[":"] = jQuery.expr.filters;
 968
 969 Sizzle.selectors.filters.hidden = function(elem){
 970         return elem.offsetWidth === 0 || elem.offsetHeight === 0;
 971 };
 972
 973 Sizzle.selectors.filters.visible = function(elem){
 974         return elem.offsetWidth > 0 || elem.offsetHeight > 0;
 975 };
 976
 977 Sizzle.selectors.filters.animated = function(elem){
 978         return jQuery.grep(jQuery.timers, function(fn){
 979                 return elem === fn.elem;
 980         }).length;
 981 };
 982
 983 jQuery.filter = jQuery.multiFilter = function( expr, elems, not ) {
 984         if ( not ) {
 985                 expr = ":not(" + expr + ")";
 986         }
 987
 988         return Sizzle.matches(expr, elems);
 989 };
 990
 991 jQuery.dir = function( elem, dir ){
 992         var matched = [], cur = elem[dir];
 993         while ( cur && cur != document ) {
 994                 if ( cur.nodeType == 1 )
 995                         matched.push( cur );
 996                 cur = cur[dir];
 997         }
 998         return matched;
 999 };
1000
1001 jQuery.nth = function(cur, result, dir, elem){
1002         result = result || 1;
1003         var num = 0;
1004
1005         for ( ; cur; cur = cur[dir] )
1006                 if ( cur.nodeType == 1 && ++num == result )
1007                         break;
1008
1009         return cur;
1010 };
1011
1012 jQuery.sibling = function(n, elem){
1013         var r = [];
1014
1015         for ( ; n; n = n.nextSibling ) {
1016                 if ( n.nodeType == 1 && n != elem )
1017                         r.push( n );
1018         }
1019
1020         return r;
1021 };
1022
1023 return;
1024
1025 window.Sizzle = Sizzle;
1026
1027 })();