// Developed by Robert Nyman/DOMAssistant team, code/licensing: http://domassistant.googlecode.com/, documentation: http://www.domassistant.com/documentation, version 2.8
var DOMAssistant = function () {
	var HTMLArray = function () {
		// Constructor
	},
	w = window, _$ = w.$, _$$ = w.$$,
	isIE = /*@cc_on!@*/false,
	isIE5 = isIE && parseFloat(navigator.appVersion) < 6,
	sort, tagCache = {}, lastCache = {}, useCache = true,
	slice = Array.prototype.slice,
	camel = {
		"accesskey": "accessKey",
		"class": "className",
		"colspan": "colSpan",
		"for": "htmlFor",
		"maxlength": "maxLength",
		"readonly": "readOnly",
		"rowspan": "rowSpan",
		"tabindex": "tabIndex",
		"valign": "vAlign",
		"cellspacing": "cellSpacing",
		"cellpadding": "cellPadding"
	},
	regex = {
		rules: /\s*,\s*/g,
		selector: /^(\w+|\*)?(#[\w\u00C0-\uFFFF\-=$]+)?((\.[\w\u00C0-\uFFFF\-]+)*)?((\[\w+\s*([~^$*|])?(=\s*([-\w\u00C0-\uFFFF\s.]+|"[^"]*"|'[^']*'))?\]+)*)?((:\w[-\w]*(\((odd|even|\-?\d*n?([-+]\d+)?|[:#]?[-\w\u00C0-\uFFFF.]+|"[^"]*"|'[^']*'|((\w*\.[-\w\u00C0-\uFFFF]+)*)?|(\[#?\w+([~^$*|])?=?[-\w\u00C0-\uFFFF\s.'"]+\]+)|(:\w[-\w]*\(.+\)))\))?)*)?([+>~])?/,
		selectorSplit: /(?:\[.*\]|\(.*\)|[^\s+>~[(])+|[+>~]/g,
		id: /^#([-\w\u00C0-\uFFFF=$]+)$/,
		tag: /^\w+/,
		relation: /^[+>~]$/,
		pseudo: /^:(\w[-\w]*)(\((.+)\))?$/,
		pseudos: /:(\w[-\w]*)(\((([^(]+)|([^(]+\([^(]+)\))\))?/g,
		attribs: /\[(\w+)\s*([~^$*|])?(=)?\s*([^\[\]]*|"[^"]*"|'[^']*')?\](?=$|\[|:|\s)/g,
		classes: /\.([-\w\u00C0-\uFFFF]+)/g,
		quoted: /^["'](.*)["']$/,
		nth: /^((odd|even)|([1-9]\d*)|((([1-9]\d*)?)n([-+]\d+)?)|(-(([1-9]\d*)?)n\+(\d+)))$/,
		special: /(:check|:enabl|\bselect)ed\b/
	},
	navigate = function (node, direction, checkTagName) {
		var oldName = node.tagName;
		while ((node = node[direction + "Sibling"]) && (node.nodeType !== 1 || (checkTagName? node.tagName !== oldName : node.tagName === "!"))) {}
		return node;
	},
	def = function (obj) {
		return typeof obj !== "undefined";
	},
	sortDocumentOrder = function (elmArray) {
		return (sortDocumentOrder = elmArray[0].compareDocumentPosition? function (elmArray) { return elmArray.sort( function (a, b) { return 3 - (a.compareDocumentPosition(b) & 6); } ); } :
			isIE? function (elmArray) { return elmArray.sort( function (a, b) { return a.sourceIndex - b.sourceIndex; } ); } :
			function (elmArray) { return elmArray.sort( function (a, b) {
				var range1 = document.createRange(), range2 = document.createRange();
				range1.setStart(a, 0);
				range1.setEnd(a, 0);
				range2.setStart(b, 0);
				range2.setEnd(b, 0);
				return range1.compareBoundaryPoints(Range.START_TO_END, range2);
			} ); })(elmArray);
	};
	var pushAll = function (set1, set2) {
		set1.push.apply(set1, slice.apply(set2));
		return set1;
	};
	if (isIE) {
		pushAll = function (set1, set2) {
			if (set2.slice) {
				return set1.concat(set2);
			}
			var i=0, item;
			while ((item = set2[i++])) {
				set1[set1.length] = item;
			}
			return set1;
		};
	}
	return {
		isIE : isIE,
		camel : camel,
		def : def,
		allMethods : [],
		publicMethods : [
			"prev",
			"next",
			"hasChild",
			"cssSelect",
			"elmsByClass",
			"elmsByAttribute",
			"elmsByTag"
		],
		
		harmonize : function () {
			w.$ = _$;
			w.$$ = _$$;
			return this;
		},
		
		initCore : function () {
			this.applyMethod.call(w, "$", this.$);
			this.applyMethod.call(w, "$$", this.$$);
			w.DOMAssistant = this;
			if (isIE) {
				HTMLArray = Array;
			}
			HTMLArray.prototype = [];
			(function (H) {
				H.each = function (fn, context) {
					for (var i=0, il=this.length; i<il; i++) {
						if (fn.call(context || this[i], this[i], i, this) === false) {
							break;
						}
					}
					return this;
				};
				H.first = function () {
					return def(this[0])? DOMAssistant.addMethodsToElm(this[0]) : null;
				};
				H.end = function () {
					return this.previousSet;
				};
				H.indexOf = H.indexOf || function (elm) {
					for (var i=0, il=this.length; i<il; i++) {
						if (i in this && this[i] === elm) {
							return i;
						}
					}
					return -1;
				};
				H.map = function (fn, context) {
					var res = [];
					for (var i=0, il=this.length; i<il; i++) {
						if (i in this) {
							res[i] = fn.call(context || this[i], this[i], i, this);
						}
					}
					return res;
				};
				H.filter = function (fn, context) {
					var res = new HTMLArray();
					res.previousSet = this;
					for (var i=0, il=this.length; i<il; i++) {
						if (i in this && fn.call(context || this[i], this[i], i, this)) {
							res.push(this[i]);
						}
					}
					return res;
				};
				H.every = function (fn, context) {
					for (var i=0, il=this.length; i<il; i++) {
						if (i in this && !fn.call(context || this[i], this[i], i, this)) {
							return false;
						}
					}
					return true;
				};
				H.some = function (fn, context) {
					for (var i=0, il=this.length; i<il; i++) {
						if (i in this && fn.call(context || this[i], this[i], i, this)) {
							return true;
						}
					}
					return false;
				};
			})(HTMLArray.prototype);
			this.attach(this);
		},
		
		addMethods : function (name, method) {
			if (!def(this.allMethods[name])) {
				this.allMethods[name] = method;
				this.addHTMLArrayPrototype(name, method);
			}
		},
		
		addMethodsToElm : function (elm) {
			for (var method in this.allMethods) {
				if (def(this.allMethods[method])) {
					this.applyMethod.call(elm, method, this.allMethods[method]);
				}
			}
			return elm;
		},
		
		applyMethod : function (method, func) {
			if (typeof this[method] !== "function") {
				this[method] = func;
			}
		},
		
		attach : function (plugin) {
			var publicMethods = plugin.publicMethods;
			if (!def(publicMethods)) {
				for (var method in plugin) {
					if (method !== "init" && def(plugin[method])) {
						this.addMethods(method, plugin[method]);
					}
				}
			}
			else if (publicMethods.constructor === Array) {
				for (var i=0, current; (current=publicMethods[i]); i++) {
					this.addMethods(current, plugin[current]);
				}
			}
			if (typeof plugin.init === "function") {
				plugin.init();
			}
		},
		
		addHTMLArrayPrototype : function (name, method) {
			HTMLArray.prototype[name] = function () {
				var elmsToReturn = new HTMLArray();
				elmsToReturn.previousSet = this;
				for (var i=0, il=this.length; i<il; i++) {
					elmsToReturn.push(method.apply(DOMAssistant.$$(this[i]), arguments));
				}
				return elmsToReturn;
			};
		},
		
		cleanUp : function (elm) {
			var children = elm.all || elm.getElementsByTagName("*");
			for (var i=0, child; (child=children[i++]);) {
				if (child.hasData && child.hasData()) {
					if (child.removeEvent) { child.removeEvent(); }
					child.unstore();
				}
			}
			elm.innerHTML = "";
		},
		
		setCache : function (cache) {
			useCache = cache;
		},
		
		$ : function () {
			var obj = arguments[0];
			if (arguments.length === 1 && (typeof obj === "object" || (typeof obj === "function" && !!obj.nodeName))) {
				return DOMAssistant.$$(obj);
			}
			var elm = !!obj? new HTMLArray() : null;
			for (var i=0, arg, idMatch; (arg=arguments[i]); i++) {
				if (typeof arg === "string") {
					arg = arg.replace(/^[^#\(]*(#)/, "$1");
					if (regex.id.test(arg)) {
						if ((idMatch = DOMAssistant.$$(arg.substr(1), false))) {
							elm.push(idMatch);
						}
					}
					else {
						var doc = (document.all || document.getElementsByTagName("*")).length;
						elm = (!document.querySelectorAll && useCache && lastCache.rule && lastCache.rule === arg && lastCache.doc === doc)? lastCache.elms : pushAll(elm, DOMAssistant.cssSelection.call(document, arg));
						lastCache = { rule: arg, elms: elm, doc: doc };
					}
				}
			}
			return elm;
		},
		
		$$ : function (id, addMethods) {
			var elm = (typeof id === "object" || typeof id === "function" && !!id.nodeName)? id : document.getElementById(id),
				applyMethods = def(addMethods)? addMethods : true,
				getId = function(el) { var eid = el.id; return typeof eid !== "object"? eid : el.attributes.id.nodeValue; };
			if (typeof id === "string" && elm && getId(elm) !== id) {
				elm = null;
				for (var i=0, item; (item=document.all[i]); i++) {
					if (getId(item) === id) {
						elm = item;
						break;
					}
				}
			}
			if (elm && applyMethods && !elm.next) {
				DOMAssistant.addMethodsToElm(elm);
			}
			return elm;
		},
		
		prev : function () {
			return DOMAssistant.$$(navigate(this, "previous"));
		},

		next : function () {
			return DOMAssistant.$$(navigate(this, "next"));
		},
		
		hasChild: function (elm) {
			return this === document || this !== elm && (this.contains? this.contains(elm) : !!(this.compareDocumentPosition(elm) & 16));
		},

		getSequence : function (expression) {
			var start, add = 2, max = -1, modVal = -1,
				pseudoVal = regex.nth.exec(expression.replace(/^0n\+/, "").replace(/^2n$/, "even").replace(/^2n+1$/, "odd"));
			if (!pseudoVal) {
				return null;
			}
			if (pseudoVal[2]) {	// odd or even
				start = (pseudoVal[2] === "odd")? 1 : 2;
				modVal = (start === 1)? 1 : 0;
			}
			else if (pseudoVal[3]) {	// single digit
				start = max = parseInt(pseudoVal[3], 10);
				add = 0;
			}
			else if (pseudoVal[4]) {	// an+b
				add = pseudoVal[6]? parseInt(pseudoVal[6], 10) : 1;
				start = pseudoVal[7]? parseInt(pseudoVal[7], 10) : 0;
				while (start < 1) {
					start += add;
				}
				modVal = (start >= add)? (start - add) % add : start;
			}
			else if (pseudoVal[8]) {	// -an+b
				add = pseudoVal[10]? parseInt(pseudoVal[10], 10) : 1;
				start = max = parseInt(pseudoVal[11], 10);
				while (start > add) {
					start -= add;
				}
				modVal = (max >= add)? (max - add) % add : max;
			}
			return { start: start, add: add, max: max, modVal: modVal };
		},
		
		cssByDOM : function (cssRule) {
			var prevParents, currentRule, cssSelectors, childOrSiblingRef, nextTag, nextRegExp, current, previous, prevParent, notElm, addElm, iteratorNext, childElm, sequence, anyTag,
				elm = new HTMLArray(), index = elm.indexOf, prevElm = [], matchingElms = [], cssRules = cssRule.replace(regex.rules, ",").split(","), splitRule = {};
			function clearAdded (elm) {
				elm = elm || prevElm;
				for (var n=elm.length; n--;) {
					elm[n].added = null;
					elm[n].removeAttribute("added");
				}
			}
			function clearChildElms () {
				for (var n=prevParents.length; n--;) {
					prevParents[n].childElms = null;
				}
			}
			function subtractArray (arr1, arr2) {
				for (var i=0, src1; (src1=arr1[i]); i++) {
					var found = false;
					for (var j=0, src2; (src2=arr2[j]); j++) {
						if (src2 === src1) {
							found = true;
							arr2.splice(j, 1);
							break;
						}
					}
					if (found) {
						arr1.splice(i--, 1);
					}
				}
				return arr1;
			}
			function getAttr (elm, attr) {
				return (isIE || regex.special.test(attr))? elm[camel[attr.toLowerCase()] || attr] : elm.getAttribute(attr, 2);
			}
			function attrToRegExp (attrVal, substrOperator) {
				attrVal = attrVal? attrVal.replace(regex.quoted, "$1").replace(/(\.|\[|\])/g, "\\$1") : null;
				return {
					"^": "^" + attrVal,
					"$": attrVal + "$",
					"*": attrVal,
					"|": "^" + attrVal + "(\\-\\w+)*$",
					"~": "\\b" + attrVal + "\\b"
				}[substrOperator] || (attrVal !== null? "^" + attrVal + "$" : attrVal);
			}
			function notComment(el) {
				return (el || this).tagName !== "!";
			}
			function getTags (tag, context) {
				return isIE5? (tag === "*"? context.all : context.all.tags(tag)) : context.getElementsByTagName(tag);
			}
			function getElementsByTagName (tag, parent) {
				tag = tag || "*";
				parent = parent || document;
				return (parent === document || parent.lastModified)? tagCache[tag] || (tagCache[tag] = getTags(tag, document)) : getTags(tag, parent);
			}
			function getElementsByPseudo (previousMatch, pseudoClass, pseudoValue) {
				prevParents = [];
				var pseudo = pseudoClass.split("-"), matchingElms = [], idx = 0, checkNodeName = /\-of\-type$/.test(pseudoClass), recur,
				match = {
					first: function(el) { return !navigate(el, "previous", checkNodeName); },
					last: function(el) { return !navigate(el, "next", checkNodeName); },
					empty: function(el) { return !el.firstChild; },
					enabled: function(el) { return !el.disabled && el.type !== "hidden"; },
					disabled: function(el) { return el.disabled; },
					checked: function(el) { return el.checked; },
					contains: function(el) { return (el.innerText || el.textContent || "").indexOf(pseudoValue.replace(regex.quoted, "$1")) > -1; },
					other: function(el) { return getAttr(el, pseudoClass) === pseudoValue; }
				};
				function basicMatch(key) {
					while ((previous=previousMatch[idx++])) {
						if (notComment(previous) && match[key](previous)) {
							matchingElms[matchingElms.length] = previous;
						}
					}
					return matchingElms;
				}
				var word = pseudo[0] || null;
				if (word && match[word]) {
					return basicMatch(word);
				}
				switch (word) {
					case "only":
						var kParent, kTag;
						while ((previous=previousMatch[idx++])) {
							prevParent = previous.parentNode;
							var q = previous.nodeName;
							if (prevParent !== kParent || q !== kTag) {
								if (match.first(previous) && match.last(previous)) {
									matchingElms[matchingElms.length] = previous;
								}
								kParent = prevParent;
								kTag = q;
							}
						}
						break;
					case "nth":
						if (pseudoValue === "n") {
							matchingElms = previousMatch;
						}
						else {
							var direction = (pseudo[1] === "last")? ["lastChild", "previousSibling"] : ["firstChild", "nextSibling"];
							sequence = DOMAssistant.getSequence(pseudoValue);
							if (sequence) {
								while ((previous=previousMatch[idx++])) {
									prevParent = previous.parentNode;
									prevParent.childElms = prevParent.childElms || {};
									var p = previous.nodeName;
									if (!prevParent.childElms[p]) {
										var childCount = 0;
										iteratorNext = sequence.start;
										childElm = prevParent[direction[0]];
										while (childElm && (sequence.max < 0 || iteratorNext <= sequence.max)) {
											var c = childElm.nodeName;
											if ((checkNodeName && c === p) || (!checkNodeName && childElm.nodeType === 1 && c !== "!")) {
												if (++childCount === iteratorNext) {
													if (c === p) { matchingElms[matchingElms.length] = childElm; }
													iteratorNext += sequence.add;
												}
											}
											childElm = childElm[direction[1]];
										}
										if (anyTag) { sort++; }
										prevParent.childElms[p] = true;
										prevParents[prevParents.length] = prevParent;
									}
								}
								clearChildElms();
							}
						}
						break;
					case "target":
						var hash = document.location.hash.slice(1);
						if (hash) {
							while ((previous=previousMatch[idx++])) {
								if (getAttr(previous, "name") === hash || getAttr(previous, "id") === hash) {
									matchingElms[matchingElms.length] = previous;
									break;
								}
							}
						}
						break;
					case "not":
						if ((recur = regex.pseudo.exec(pseudoValue))) {
							matchingElms = subtractArray(previousMatch, getElementsByPseudo(previousMatch, recur[1]? recur[1].toLowerCase() : null, recur[3] || null));
						}
						else {
							for (var re in regex) {
								if (regex[re].lastIndex) {
									regex[re].lastIndex = 0;
								}
							}
							pseudoValue = pseudoValue.replace(regex.id, "[id=$1]");
							var notTag = regex.tag.exec(pseudoValue);
							var notClass = regex.classes.exec(pseudoValue);
							var notAttr = regex.attribs.exec(pseudoValue);
							var notRegExp = new RegExp(notAttr? attrToRegExp(notAttr[4], notAttr[2]) : "(^|\\s)" + (notTag? notTag[0] : notClass? notClass[1] : "") + "(\\s|$)", "i");
							while ((notElm=previousMatch[idx++])) {
								addElm = null;
								if (notTag && !notRegExp.test(notElm.nodeName) || notClass && !notRegExp.test(notElm.className)) {
									addElm = notElm;
								}
								else if (notAttr) {
									var att = getAttr(notElm, notAttr[1]);
									if (!def(att) || att === false || typeof att === "string" && !notRegExp.test(att)) {
										addElm = notElm;
									}
								}
								if (addElm && !addElm.added) {
									addElm.added = true;
									matchingElms[matchingElms.length] = addElm;
								}
							}
						}
						break;
					default: return basicMatch("other");
				}
				return matchingElms;
			}
			function pushUnique(set1, set2) {
				var i=0, s=set1, item;
				while ((item = set2[i++])) {
					if (!s.length || s.indexOf(item) < 0) {
						set1.push(item);
					}
				}
				return set1;
			}
			sort = -1;
			for (var a=0, tagBin=[]; (currentRule=cssRules[a]); a++) {
				if (!(cssSelectors = currentRule.match(regex.selectorSplit)) || a && index.call(cssRules.slice(0, a), currentRule) > -1) { continue; }
				prevElm = [this];
				for (var i=0, rule; (rule=cssSelectors[i]); i++) {
					matchingElms = [];
					if ((childOrSiblingRef = regex.relation.exec(rule))) {
						var idElm = null, nextWord = cssSelectors[i+1];
						if ((nextTag = regex.tag.exec(nextWord))) {
							nextTag = nextTag[0];
							nextRegExp = new RegExp("(^|\\s)" + nextTag + "(\\s|$)", "i");
						}
						else if (regex.id.test(nextWord)) {
							idElm = DOMAssistant.$(nextWord) || null;
						}
						for (var j=0, prevRef; (prevRef=prevElm[j]); j++) {
							switch (childOrSiblingRef[0]) {
								case ">":
									var children = idElm || getElementsByTagName(nextTag, prevRef);
									for (var k=0, child; (child=children[k]); k++) {
										if (child.parentNode === prevRef) {
											matchingElms[matchingElms.length] = child;
										}
									}
									break;
								case "+":
									if ((prevRef = navigate(prevRef, "next"))) {
										if ((idElm && idElm[0] === prevRef) || (!idElm && (!nextTag || nextRegExp.test(prevRef.nodeName)))) {
											matchingElms[matchingElms.length] = prevRef;
										}
									}
									break;
								case "~":
									while ((prevRef = prevRef.nextSibling) && !prevRef.added) {
										if ((idElm && idElm[0] === prevRef) || (!idElm && (!nextTag || nextRegExp.test(prevRef.nodeName)))) {
											prevRef.added = true;
											matchingElms[matchingElms.length] = prevRef;
										}
									}
									break;
							}
						}
						prevElm = matchingElms;
						clearAdded();
						rule = cssSelectors[++i];
						if (/^\w+$/.test(rule) || regex.id.test(rule)) {
							continue;
						}
						prevElm.skipTag = true;
					}
					var cssSelector = regex.selector.exec(rule);
					splitRule = {
						tag : cssSelector[1]? cssSelector[1] : "*",
						id : cssSelector[2],
						allClasses : cssSelector[3],
						allAttr : cssSelector[5],
						allPseudos : cssSelector[10]
					};
					anyTag = (splitRule.tag === "*");
					if (splitRule.id) {
						var u = 0, DOMElm = document.getElementById(splitRule.id.slice(1));
						if (DOMElm) {
							while (prevElm[u] && !DOMAssistant.hasChild.call(prevElm[u], DOMElm)) { u++; }
							matchingElms = (u < prevElm.length && (anyTag || splitRule.tag === DOMElm.tagName.toLowerCase()))? [DOMElm] : [];
						}
						prevElm = matchingElms;
					}
					else if (splitRule.tag && !prevElm.skipTag) {
						if (i===0 && !matchingElms.length && prevElm.length === 1) {
							prevElm = matchingElms = pushAll([], getElementsByTagName(splitRule.tag, prevElm[0]));
						}
						else {
							for (var l=0, ll=prevElm.length, tagCollectionMatches, tagMatch; l<ll; l++) {
								tagCollectionMatches = getElementsByTagName(splitRule.tag, prevElm[l]);
								for (var m=0; (tagMatch=tagCollectionMatches[m]); m++) {
									if (!tagMatch.added) {
										tagMatch.added = true;
										matchingElms[matchingElms.length] = tagMatch;
									}
								}
							}
							prevElm = matchingElms;
							clearAdded();
						}
					}
					if (!matchingElms.length) {
						break;
					}
					prevElm.skipTag = false;
					if (splitRule.allClasses) {
						var n = 0, matchingClassElms = [], allClasses = splitRule.allClasses.split(".").slice(1);
						while ((current = prevElm[n++])) {
							var matchCls = true, elmClass = current.className;
							if (elmClass && elmClass.length) {
								elmClass = elmClass.split(" ");
								for (var o=allClasses.length; o--;) {
									if (elmClass.indexOf(allClasses[o]) < 0) {
										matchCls = false;
										break;
									}
								}
								if (matchCls) {
									matchingClassElms[matchingClassElms.length] = current;
								}
							}
						}
						prevElm = matchingElms = matchingClassElms;
					}
					if (splitRule.allAttr) {
						var matchAttr, r = 0, regExpAttributes = [], matchingAttributeElms = [], allAttr = splitRule.allAttr.match(regex.attribs);
						for (var specialStrip = /^\[(selected|readonly)(\s*=.+)?\]$/, q=0, ql=allAttr.length, attributeMatch, attrVal; q<ql; q++) {
							regex.attribs.lastIndex = 0;
							attributeMatch = regex.attribs.exec(allAttr[q].replace(specialStrip, "[$1]"));
							attrVal = attrToRegExp(attributeMatch[4], attributeMatch[2] || null);
							regExpAttributes[q] = [(attrVal? new RegExp(attrVal) : null), attributeMatch[1]];
						}
						while ((current = matchingElms[r++])) {
							for (var s=0, sl=regExpAttributes.length; s<sl; s++) {
								var attributeRegExp = regExpAttributes[s][0], currentAttr = getAttr(current, regExpAttributes[s][1]);
								matchAttr = true;
								if (!attributeRegExp && currentAttr === true) { continue; }
								if ((!attributeRegExp && (!currentAttr || typeof currentAttr !== "string" || !currentAttr.length)) || (!!attributeRegExp && !attributeRegExp.test(currentAttr))) {
									matchAttr = false;
									break;
								}
							}
							if (matchAttr) {
								matchingAttributeElms[matchingAttributeElms.length] = current;
							}
						}
						prevElm = matchingElms = matchingAttributeElms;
					}
					if (splitRule.allPseudos) {
						var allPseudos = splitRule.allPseudos.match(regex.pseudos);
						for (var t=0, tl=allPseudos.length; t<tl; t++) {
							regex.pseudos.lastIndex = 0;
							var pseudo = regex.pseudos.exec(allPseudos[t]);
							var pseudoClass = pseudo[1]? pseudo[1].toLowerCase() : null;
							var pseudoValue = pseudo[3] || null;
							matchingElms = getElementsByPseudo(matchingElms, pseudoClass, pseudoValue);
							clearAdded(matchingElms);
						}
						prevElm = matchingElms;
					}
				}
				elm = ((tagBin.length && (anyTag || index.call(tagBin, splitRule.tag) >= 0 || index.call(tagBin, "*") >= 0))? pushUnique : pushAll)(elm, prevElm);
				tagBin.push(splitRule.tag);
				if (isIE && anyTag) { elm = elm.filter(notComment); }
			}
			return ((elm.length > 1 && cssRules.length > 1) || sort > 0)? sortDocumentOrder(elm) : elm;
		},
		
		cssByXpath : function (cssRule) {
			var ns = { xhtml: "http://www.w3.org/1999/xhtml" },
				prefix = (document.documentElement.namespaceURI === ns.xhtml)? "xhtml:" : "",
				nsResolver = function lookupNamespaceURI (prefix) {
					return ns[prefix] || null;
				};
			DOMAssistant.cssByXpath = function (cssRule) {
				var currentRule, cssSelectors, xPathExpression, cssSelector, splitRule, sequence,
					elm = new HTMLArray(), cssRules = cssRule.replace(regex.rules, ",").split(",");
				function attrToXPath (wrap) {
					var pre = wrap? "[" : "", post = wrap? "]" : "";
					return function (match, p1, p2, p3, p4) {
						p4 = (p4 || "").replace(regex.quoted, "$1");
						if (p1 === p4 && p1 === "readonly") { p3 = null; }
						return pre + ({
							"^": "starts-with(@" + p1 + ", \"" + p4 + "\")",
							"$": "substring(@" + p1 + ", (string-length(@" + p1 + ") - " + (p4.length - 1) + "), " + p4.length + ") = \"" + p4 + "\"",
							"*": "contains(concat(\" \", @" + p1 + ", \" \"), \"" + p4 + "\")",
							"|": "@" + p1 + "=\"" + p4 + "\" or starts-with(@" + p1 + ", \"" + p4 + "-\")",
							"~": "contains(concat(\" \", @" + p1 + ", \" \"), \" " + p4 + " \")"
						}[p2] || ("@" + p1 + (p3? "=\"" + p4 + "\"" : ""))) + post;
					};
				}
				function pseudoToXPath (tag, pseudoClass, pseudoValue) {
					tag = /\-child$/.test(pseudoClass)? "*" : tag;
					var pseudo = pseudoClass.split("-"), position = ((pseudo[1] === "last")? "(count(following-sibling::" : "(count(preceding-sibling::") + tag + ") + 1)", recur, hash;
					switch (pseudo[0]) {
						case "nth": return (pseudoValue !== "n" && (sequence = DOMAssistant.getSequence(pseudoValue)))? ((sequence.start === sequence.max)? position + " = " + sequence.start : position + " mod " + sequence.add + " = " + sequence.modVal + ((sequence.start > 1)? " and " + position + " >= " + sequence.start : "") + ((sequence.max > 0)? " and " + position + " <= " + sequence.max: "")) : "";
						case "not": return "not(" + ((recur = regex.pseudo.exec(pseudoValue))? pseudoToXPath(tag, recur[1]? recur[1].toLowerCase() : null, recur[3] || null) : pseudoValue.replace(regex.id, "[id=$1]").replace(regex.tag, "self::$0").replace(regex.classes, "contains(concat(\" \", @class, \" \"), \" $1 \")").replace(regex.attribs, attrToXPath())) + ")";
						case "first": return "not(preceding-sibling::" + tag + ")";
						case "last": return "not(following-sibling::" + tag + ")";
						case "only": return "not(preceding-sibling::" + tag + " or following-sibling::" + tag + ")";
						case "empty": return "not(child::*) and not(text())";
						case "contains": return "contains(., \"" + pseudoValue.replace(regex.quoted, "$1") + "\")";
						case "enabled": return "not(@disabled) and not(@type=\"hidden\")";
						case "disabled": return "@disabled";
						case "target": return "@name=\"" + (hash = document.location.hash.slice(1)) + "\" or @id=\"" + hash + "\"";
						default: return "@" + pseudoClass + "=\"" + pseudoValue + "\"";
					}
				}
				for (var i=0; (currentRule=cssRules[i]); i++) {
					if (!(cssSelectors = currentRule.match(regex.selectorSplit)) || i && elm.indexOf.call(cssRules.slice(0, i), currentRule) > -1) { continue; }
					xPathExpression = xPathExpression? xPathExpression + " | ." : ".";
					for (var j=0, jl=cssSelectors.length; j<jl; j++) {
						cssSelector = regex.selector.exec(cssSelectors[j]);
						splitRule = {
							tag: prefix + (cssSelector[1]? cssSelector[1] : "*"),
							id: cssSelector[2],
							allClasses: cssSelector[3],
							allAttr: cssSelector[5],
							allPseudos: cssSelector[10],
							tagRelation: cssSelector[20]
						};
						xPathExpression +=
							(splitRule.tagRelation? ({ ">": "/", "+": "/following-sibling::*[1]/self::", "~": "/following-sibling::" }[splitRule.tagRelation] || "") : ((j > 0 && regex.relation.test(cssSelectors[j-1]))? splitRule.tag : ("//" + splitRule.tag))) +
							(splitRule.id || "").replace(regex.id, "[@id = \"$1\"]") +
							(splitRule.allClasses || "").replace(regex.classes, "[contains(concat(\" \", @class, \" \"), \" $1 \")]") +
							(splitRule.allAttr || "").replace(regex.attribs, attrToXPath(true));
						if (splitRule.allPseudos) {
							var allPseudos = splitRule.allPseudos.match(regex.pseudos);
							for (var k=0, kl=allPseudos.length; k<kl; k++) {
								regex.pseudos.lastIndex = 0;
								var pseudo = regex.pseudos.exec(allPseudos[k]),
									pseudoClass = pseudo[1]? pseudo[1].toLowerCase() : null,
									pseudoValue = pseudo[3] || null,
									xpath = pseudoToXPath(splitRule.tag, pseudoClass, pseudoValue);
								if (xpath.length) {
									xPathExpression += "[" + xpath + "]";
								}
							}
						}
					}
				}
				try {
					var xPathNodes = document.evaluate(xPathExpression, this, nsResolver, 7, null), node, p=0;
					while ((node = xPathNodes.snapshotItem(p++))) { elm.push(node); }
				} catch (e) {}
				return elm;
			};
			return DOMAssistant.cssByXpath.call(this, cssRule);
		},
		
		cssSelection : function (cssRule) {
			if (!cssRule) { return null; }
			var special = regex.special.test(cssRule);
			try {
				if (document.querySelectorAll && !special) {
					return pushAll(new HTMLArray(), this.querySelectorAll(cssRule));
				}
			} catch (e) {}
			return ((document.evaluate && !special && !/-of-type/.test(cssRule))? DOMAssistant.cssByXpath : DOMAssistant.cssByDOM).call(this, cssRule);
		},
		
		cssSelect : function (cssRule) {
			return DOMAssistant.cssSelection.call(this, cssRule);
		},
		
		elmsByClass : function (className, tag) {
			var cssRule = (tag || "") + "." + className;
			return DOMAssistant.cssSelection.call(this, cssRule);
		},
		
		elmsByAttribute : function (attr, attrVal, tag, substrMatchSelector) {
			var cssRule = (tag || "") + "[" + attr + ((attrVal && attrVal !== "*")? ((substrMatchSelector || "") + "=" + attrVal + "]") : "]");
			return DOMAssistant.cssSelection.call(this, cssRule);
		},
		
		elmsByTag : function (tag) {
			return DOMAssistant.cssSelection.call(this, tag);
		}
	};
}();
DOMAssistant.initCore();
DOMAssistant.Storage = function () {
	var uniqueId = 1, data = [], expando = "_da" + +new Date();
	return {
		hasData : function () {
			var uid = this[expando];
			return !!uid && !!data[uid];
		},
		retrieve : function (key) {
			if (!DOMAssistant.def(key)) {
				return this[expando] || (this[expando] = uniqueId++);
			}
			if (!this[expando] || !data[this[expando]]) { return; }
			return data[this[expando]][key];
		},
		
		store : function (key, val) {
			var uid = this[expando] || (this[expando] = uniqueId++);
			data[uid] = data[uid] || {};
			if (typeof key === "object") {
				for (var i in key) {
					if (typeof i === "string") {
						data[uid][i] = key[i];
					}
				}
			}
			else {
				data[uid][key] = val;
			}
			return this;
		},
		
		unstore : function (key) {
			var uid = this[expando] || (this[expando] = uniqueId++);
			if (data[uid]) {
				if (DOMAssistant.def(key)) {
					delete data[uid][key];
				}
				else {
					data[uid] = null;
				}
			}
			return this;
		}
	};
}();
DOMAssistant.attach(DOMAssistant.Storage);