var YAO = function(){
	var D = document, OA = '[object Array]', FC = "[object Function]", OP = Object.prototype, nt = "nodeType", listeners = [], 
	lastError = null;
	return {
		isArray: function(obj){
			return OP.toString.apply(obj) === OA;
		},
		isString: function(s){
			return typeof s === 'string';
		},
		isUndefined: function(obj){
			return typeof obj === 'undefined';
		},
		hasOwnProperty: function(obj, prper){
			if (OP.hasOwnProperty) {
				return obj.hasOwnProperty(prper);
			}
			return !this.isUndefined(obj[prper]) && obj.constructor.prototype[prper] !== obj[prper];
		},		
		addListener: function(el, sType, fn, obj, overrideContext, bCapture){
			var oEl = null, context = null, wrappedFn = null;
			if(YAO.isString(el)){
				oEl = YAO.getEl(el);
				el = oEl;
			}
			if(!el || !fn || !fn.call){
				return false;
			}
			context = el;
			if (overrideContext) {
				if (overrideContext === true) {
					context = obj;
				}
				else {
					context = overrideContext;
				}
			}
			wrappedFn = function(e){
				return fn.call(context, YAO.getEvent(e, el), obj);
			};
			try {
				try {
					el.addEventListener(sType, wrappedFn, bCapture);
				} 
				catch (e) {
					try {
						el.attachEvent('on' + sType, wrappedFn);
					} 
					catch (e) {
						el['on' + sType] = wrappedFn;
					}
				}
			} 
			catch (e) {
				lastError = e;
				this.removeListener(el, sType, wrappedFn, bCapture);
				return false;
			}
			if ('unload' != sType) {
				// cache the listener so we can try to automatically unload
				listeners[listeners.length] = [el, sType, fn, wrappedFn, bCapture];
			}
			return true;
		},

		on: function(el, sType, fn, obj, overrideContext){
			var oEl = obj || el, scope = overrideContext || this;
			return YAO.addListener(el, sType, fn, oEl, scope, false);
		},
		stopEvent: function(evt){
			this.stopPropagation(evt);
			this.preventDefault(evt);
		},
		stopPropagation: function(evt){
			if (evt.stopPropagation) {
				evt.stopPropagation();
			}
			else {
				evt.cancelBubble = true;
			}
		},
		preventDefault: function(evt){
			if (evt.preventDefault) {
				evt.preventDefault();
			}
			else {
				evt.returnValue = false;
			}
		},
		getEvent: function(e, boundEl){
			var ev = e || window.event;
			
			if (!ev) {
				var c = this.getEvent.caller;
				while (c) {
					ev = c.arguments[0];
					if (ev && Event == ev.constructor) {
						break;
					}
					c = c.caller;
				}
			}
			
			return ev;
		},
		
		getEl: function(elem){
			var elemID, E, m, i, k, length, len;
			if (elem) {
				if (elem[nt] || elem.item) {
					return elem;
				}
				if (YAO.isString(elem)) {
					elemID = elem;
					elem = D.getElementById(elem);
					if (elem && elem.id === elemID) {
						return elem;
					}
					else {
						if (elem && elem.all) {
							elem = null;
							E = D.all[elemID];
							for (i = 0, len = E.length; i < len; i += 1) {
								if (E[i].id === elemID) {
									return E[i];
								}
							}
						}
					}
					return elem;
				}
				else {
					if (elem.DOM_EVENTS) {
						elem = elem.get("element");
					}
					else {
						if (YAO.isArray(elem)) {
							m = [];
							for (k = 0, length = elem.length; k < length; k += 1) {
								m[m.length] = YAO.getEl(elem[k]);
							}
							return m;
						}
					}
				}
			}
			return null;
		},
		hasClass: function(elem, className){
			var has = new RegExp("(?:^|\\s+)" + className + "(?:\\s+|$)");
			return has.test(elem.className);
		},
		addClass: function(elem, className){
			if (YAO.hasClass(elem, className)) {
				return;
			}
			elem.className = [elem.className, className].join(" ");
		},
		removeClass: function(elem, className){
			var replace = new RegExp("(?:^|\\s+)" + className + "(?:\\s+|$)", "g");
			if (!YAO.hasClass(elem, className)) {
				return;
			}
			var o = elem.className;
			elem.className = o.replace(replace, " ");
			if (YAO.hasClass(elem, className)) {
				YAO.removeClass(elem, className);
			}
		},
		replaceClass: function(elem, newClass, oldClass){
			if (newClass === oldClass) {
				return false;
			}
			var has = new RegExp("(?:^|\\s+)" + newClass + "(?:\\s+|$)", "g");
			if (!YAO.hasClass(elem, newClass)) {
				YAO.addClass(elem, oldClass);
				return;
			}
			elem.className = elem.className.replace(has, " " + oldClass + " ");
			if (YAO.hasClass(elem, newClass)) {
				YAO.replaceClass(elem, newClass, oldClass);
			}
		},
		getElByClassName: function(className, tag, rootId){
			var elems = [], i, tempCnt = YAO.getEl(rootId).getElementsByTagName(tag), len = tempCnt.length;
			for (i = 0; i < len; ++i) {
				if (YAO.hasClass(tempCnt[i], className)) {
					elems.push(tempCnt[i]);
				}
			}
			if (elems.length < 1) {
				return false;
			}
			else {
				return elems;
			}
		},

        getElementsBy: function(method, tag, root){
            tag = tag || "*";
            var m = [];
            if (root) {
                root = YAO.getEl(root);
                if (!root) {
                    return m;
                }
            }
            else {
                root = document;
            }
            var oElem = root.getElementsByTagName(tag);
            if (!oElem.length && (tag === "*" && root.all)) {
                oElem = root.all;
            }
            for (var n = 0, j = oElem.length; n < j; ++n) {
                if (method(oElem[n])) {
                    m[m.length] = oElem[n];
                }
            }
            return m;
        },
// ok
		Builder: {
			nidx: 0,
			NODEMAP: {
				AREA: 'map',
				CAPTION: 'table',
				COL: 'table',
				COLGROUP: 'table',
				LEGEND: 'fieldset',
				OPTGROUP: 'select',
				OPTION: 'select',
				PARAM: 'object',
				TBODY: 'table',
				TD: 'table',
				TFOOT: 'table',
				TH: 'table',
				THEAD: 'table',
				TR: 'table'
			},

			//ok
			Child: function(parent, child){
				if (child.tagName) {
					parent.appendChild(child);
					return false;
				}
				if (YAO.isArray(child)) {
					var i, length = child.length;
					for (i = 0; i < length; i += 1) {
						if (child[i].tagName) {
							parent.appendChild(child[i]);
						}
						else {
							if (YAO.isString(child[i])) {
								parent.appendChild(D.createTextNode(child[i]));
							}
						}
					}
				}
				else {
					if (YAO.isString(child)) {
						parent.appendChild(D.createTextNode(child));
					}
				}
			}
		},
		

			//ok
		JSON: function(){
			function f(n){
				return n < 10 ? '0' + n : n;
			}
			
			Date.prototype.toJSON = function(){
				return this.getUTCFullYear() + '-' + f(this.getUTCMonth() + 1) + '-' + f(this.getUTCDate()) + 'T' + f(this.getUTCHours()) + ':' + f(this.getUTCMinutes()) + ':' + f(this.getUTCSeconds()) + 'Z';
			};
			
			var m = {
				'\b': '\\b',
				'\t': '\\t',
				'\n': '\\n',
				'\f': '\\f',
				'\r': '\\r',
				'"': '\\"',
				'\\': '\\\\'
			};
			
			function stringify(value, whitelist){
				var a, i, k, l, r = /["\\\x00-\x1f\x7f-\x9f]/g, v;
				switch (typeof value) {
					case 'string':
						return r.test(value) ? '"' +
						value.replace(r, function(a){
							var c = m[a];
							if (c) {
								return c;
							}
							c = a.charCodeAt();
							return '\\u00' + Math.floor(c / 16).toString(16) + (c % 16).toString(16);
						}) +
						'"' : '"' + value + '"';
					case 'number':
						return isFinite(value) ? String(value) : 'null';
					case 'boolean':
					case 'null':
						return String(value);
					case 'object':
						if (!value) {
							return 'null';
						}
						
						if (typeof value.toJSON === 'function') {
							return stringify(value.toJSON());
						}
						a = [];
						if (typeof value.length === 'number' && !(value.propertyIsEnumerable('length'))) {
						
							l = value.length;
							for (i = 0; i < l; i += 1) {
								a.push(stringify(value[i], whitelist) || 'null');
							}
							
							return '[' + a.join(',') + ']';
						}
						if (whitelist) {
							l = whitelist.length;
							for (i = 0; i < l; i += 1) {
								k = whitelist[i];
								if (typeof k === 'string') {
									v = stringify(value[k], whitelist);
									if (v) {
										a.push(stringify(k) + ':' + v);
									}
								}
							}
						}
						else {
							for (k in value) {
								if (typeof k === 'string') {
									v = stringify(value[k], whitelist);
									if (v) {
										a.push(stringify(k) + ':' + v);
									}
								}
							}
						}
						return '{' + a.join(',') + '}';
				}
			}
			
			return {
				stringify: stringify,
				parse: function(text, filter){
					var j;
					
					function walk(k, v){
						var i, n;
						if (v && typeof v === 'object') {
							for (i in v) {
								if (OP.hasOwnProperty.apply(v, [i])) {
									n = walk(i, v[i]);
									if (n !== undefined) {
										v[i] = n;
									}
									else {
										delete v[i];
									}
								}
							}
						}
						return filter(k, v);
					}
					
					if (/^[\],:{}\s]*$/.test(text.replace(/\\./g, '@').replace(/"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g, ']').replace(/(?:^|:|,)(?:\s*\[)+/g, ''))) {
						j = eval('(' + text + ')');
						
						return typeof filter === 'function' ? walk('', j) : j;
					}
					
					throw new SyntaxError('parseJSON');
				}
			};
		}(),
		
		YTabs: function(){
			var j, len = arguments.length, Tabs = [];
			for (j = 0; j < len; ++j) {
				Tabs[j] = new YAO.singleTab(arguments[j]);
			}
			return Tabs;
		},
		scrollNews: function(S, SI, RT, CT){
            var SN = new YAO.scrollVertical(S, SI, RT, CT);
            SN.speed = 4000;
            SN.isPause = true;
            var TM = setTimeout(function(){
                if (TM) {
                    clearTimeout(TM);
                }
                SN.isPause = false;
            }, 2000);
            YAO.on(SN.scrollArea, 'mouseover', function(){
                SN.isPause = true;
            });
            YAO.on(SN.scrollArea, 'mouseout', function(){
                SN.isPause = false;
            });
        }
	};
	
	YAO.on(window, "unload", YAO._unload);
}();

YAO.singleTab = function(oConfigs){
	this.tabRoot = YAO.isString(oConfigs.tabRoot) ? YAO.getEl(oConfigs.tabRoot) : (oConfigs.tabRoot || null);
	this.tabs = YAO.isString(oConfigs.tabs) ? this.tabRoot.getElementsByTagName(oConfigs.tabs) : (oConfigs.tabs || null);
	this.contents = YAO.isString(oConfigs.contents) ? this.tabRoot.getElementsByTagName(oConfigs.contents) : (oConfigs.contents || null);
	
	if(!this.tabs || !this.contents){
		return false;
	}
	
	this.length = this.tabs.length || 0;
	this.defaultIndex = oConfigs.defaultIndex || 0;
	this.lastIndex = this.defaultIndex;
	this.lastTab = this.tabs[this.lastIndex] || null;
	this.lastContent = this.contents[this.lastIndex] || null;
	this.evtName = oConfigs.evt || 'mouseover';
	this.defaultClass = oConfigs.defaultClass || this.CURRENT_TAB_CLASS;
	this.previousClass = oConfigs.previousClass || '';
	this.hideAll = oConfigs.hideAll || false;
	this.auto = oConfigs.auto || false;
	this.autoSpeed = oConfigs.autoSpeed || 6000;
	this.fadeUp = oConfigs.fadeUp || false;
	this.scroll = oConfigs.scroll || false;
	this.scrollId = oConfigs.scrollId || null;
	this.scrollSpeed = oConfigs.scrollSpeed || 5;
    this.direction = oConfigs.direction || 'V';
	this.activeTag = oConfigs.activeTag || 'IMG';
	this.stepHeight = oConfigs.stepHeight || 0;
	this.stepWidth = oConfigs.stepWidth || 0;
	this.ajax = oConfigs.ajax || false;
	this.ajaxDefaultInfo = this.contents.innerHTML;
	this.aPath = oConfigs.aPath || '';
	
	this.init();
};
YAO.singleTab.prototype.timer = null;
YAO.singleTab.prototype.isPause = false;
YAO.singleTab.prototype.CURRENT_TAB_CLASS = 'current';
YAO.singleTab.prototype.init = function(){
	var i, that = this;
	if (this.tabs && this.contents) {
		if (this.auto) {
			this.timer = setTimeout(function(){
				that.autoChange();
			}, that.autoSpeed);
		}
		if (!this.hideAll) {
			YAO.addClass(this.lastTab, this.defaultClass);
			if (!this.ajax && !this.scroll) {
				if (this.lastContent) {
					this.lastContent.style.display = 'block';
				}
			}
			if (this.ajax) {
				this.ajaxTab(this.lastTab);
			}
			if (this.scroll) {
				this.scrollCnt((this.lastContent || this.contents), this.defaultIndex);
			}
		}
		else {
			YAO.removeClass(this.lastTab, this.defaultClass);
		}
		for (i = 0; i < this.length; ++i) {
			if (i !== this.defaultIndex) {
				YAO.removeClass(this.tabs[i], this.CURRENT_TAB_CLASS);
				if (!this.ajax && !this.scroll) {
					this.contents[i].style.display = 'none';
				}
			}
			YAO.on(this.tabs[i], this.evtName, function(index){
				return function(event){
					var evt = null, curClass = (this.tabs[index] === this.tabs[this.defaultIndex]) ? this.defaultClass : this.CURRENT_TAB_CLASS;
					if (!YAO.hasClass(this.tabs[index], curClass)) {
						var currentContent = (this.ajax || (this.scroll && (this.stepHeight || this.stepWidth))) ? this.contents : (this.contents[index] || null);
						
						this.setCurrent(currentContent, index);
						this.lastIndex = index;
					}
					if (this.auto) {
						this.isPause = true;
					}
					evt = event || window.event;
					YAO.stopEvent(evt);
				}
			}(i), this.tabs[i], that);
			YAO.on(this.tabs[i], 'mouseout', function(index){
				return function(){
					var curTab = this.tabs[index];
					if (this.hideAll && this.evtName === 'mouseover') {
						if (this.lastTab === curTab) {
							YAO.removeClass(curTab, (YAO.hasClass(curTab, that.defaultClass) ? this.defaultClass : this.CURRENT_TAB_CLASS));
						}
						if (this.previousClassTab) {
							YAO.removeClass(this.previousClassTab, this.previousClass);
						}
						if (!this.scroll && !this.ajax) {
							this.contents[index].style.display = 'none';
						}
					}
					else {
						if (this.auto) {
							this.isPause = false;
						}
					}
				}
			}(i), this.tabs[i], that);
		}
	}
};

YAO.singleTab.prototype.setCurrent = function(curCnt, index){
	var activeObj = null;
	curTab = this.tabs[index];
	YAO.removeClass(this.lastTab, (YAO.hasClass(this.lastTab, this.defaultClass) ? this.defaultClass : this.CURRENT_TAB_CLASS));
	if (curTab === this.tabs[this.defaultIndex]) {
		YAO.addClass(curTab, this.defaultClass);
	}
	else {
		YAO.addClass(curTab, this.CURRENT_TAB_CLASS);
	}
	if (this.previousClass) {
		if (this.previousClassTab) {
			YAO.removeClass(this.previousClassTab, this.previousClass);
		}
		if (index !== 0) {
			YAO.addClass(this.tabs[index - 1], this.previousClass);
			if ((index - 1) === this.defaultIndex) {
				YAO.removeClass(this.tabs[index - 1], this.defaultClass);
			}
			this.previousClassTab = (this.tabs[index - 1]);
		}
	}
	if (!this.scroll && !this.ajax) {
		if (this.lastContent) {
			this.lastContent.style.display = "none";
		}
		if (curCnt) {
			curCnt.style.display = "block";
		}
	}
	
	if (this.fadeUp) {
		activeObj = (curCnt.tagName.toUpperCase() === 'IMG') ? curCnt : curCnt.getElementsByTagName('img')[0];
		if (this.lastContent !== curCnt) {
			YAO.fadeUp(activeObj);
		}
	}
	else {
		if (this.scroll) {
			this.scrollCnt(curCnt, index);
		}
	}
	if (!this.ajax) {
		this.lastContent = curCnt;
	}
	else {
		if (this.ajax) {
			this.ajaxTab(curTab);
		}
	}
	this.lastTab = curTab;
};