var $ = function (id) {
				return "string" == typeof id ? document.getElementById(id) : id;
			};
    
			var Class = {
				create: function() {
					return function() {
						this.initialize.apply(this, arguments);
					}
				}
			}
    
			Object.extend = function(destination, source) {
				for (var property in source) {
					destination[property] = source[property];
				}
				return destination;
			}
    
			var TransformView = Class.create();
			TransformView.prototype = {
				//容器对象,滑动对象,切换参数,切换数量
				initialize: function(container, slider, parameter, count, options) {
					if(parameter <= 0 || count <= 0) return;
					var oContainer = $(container), oSlider = $(slider), oThis = this;
    
					this.Index = 0;//当前索引
        
					this._timer = null;//定时器
					this._slider = oSlider;//滑动对象
					this._parameter = parameter;//切换参数
					this._count = count || 0;//切换数量
					this._target = 0;//目标参数
					
					this.SetOptions(options);
					
					this.Up = !!this.options.Up;
					this.Step = Math.abs(this.options.Step);
					this.Time = Math.abs(this.options.Time);
					this.Auto = !!this.options.Auto;
					this.Pause = Math.abs(this.options.Pause);
					this.onStart = this.options.onStart;
					this.onFinish = this.options.onFinish;
					
					oContainer.style.overflow = "hidden";
					oContainer.style.position = "relative";
					
					oSlider.style.position = "absolute";
					oSlider.style.top = oSlider.style.left = 0;
				},
				//设置默认属性
				SetOptions: function(options) {
					this.options = {//默认值
						Up:			true,//是否向上(否则向左)
						Step:		5,//滑动变化率
						Time:		50,//滑动延时
						Auto:		true,//是否自动转换
						Pause:		3000,//停顿时间(Auto为true时有效)
						onStart:	function(){},//开始转换时执行
						onFinish:	function(){}//完成转换时执行
					};
					Object.extend(this.options, options || {});
				},
				//开始切换设置
				Start: function() {
					if(this.Index < 0){
						this.Index = this._count - 1;
					} else if (this.Index >= this._count){ this.Index = 0; }
			
					this._target = -1 * this._parameter * this.Index;
					this.onStart();
					this.Move();
				},
				//移动
				Move: function() {
					clearTimeout(this._timer);
					var oThis = this, style = this.Up ? "top" : "left", iNow = parseInt(this._slider.style[style]) || 0, iStep = this.GetStep(this._target, iNow);
			

					if( iNow == -1092){
						iStep = 0;
						this._slider.style.left = "0px";
						clearTimeout(this._timer);
					}


					if (iStep != 0) {
						this._slider.style[style] = (iNow + iStep) + "px";
						this._timer = setTimeout(function(){ oThis.Move(); }, this.Time);
					} else {
						this._slider.style[style] = this._target + "px";
						this.onFinish();
						if (this.Auto) { this._timer = setTimeout(function(){ oThis.Index++; oThis.Start(); }, this.Pause); }
					}
				},
				//获取步长
				GetStep: function(iTarget, iNow) {
					var iStep = (iTarget - iNow) / this.Step;
					if (iStep == 0) return 0;
					if (Math.abs(iStep) < 1) return (iStep > 0 ? 1 : -1);
					return iStep;
				},
				//停止
				Stop: function(iTarget, iNow) {
					clearTimeout(this._timer);
					this._slider.style[this.Up ? "top" : "left"] = this._target + "px";
				}
			};
    
			window.onload=function(){
				function Each(list, fun){
					for (var i = 0, len = list.length; i < len; i++) { fun(list[i], i); }
				};

				var objs2 = $("iNum").getElementsByTagName("li");
			
				var tv2 = new TransformView("idTransformView", "iSlider", 546, 3, {
					onStart: function(){ Each(objs2, function(o, i){ o.className = tv2.Index == i ? "on" : ""; }) },//按钮样式
					Up: false
				});
			
				tv2.Start();
			
				Each(objs2, function(o, i){
					o.onclick = function(){
						o.className = "on";
						tv2.Auto = false;
						tv2.Index = i;
						tv2.Start();
					}
					o.onmouseout = function(){
						o.className = "";
						tv2.Auto = true;
						tv2.Start();
					}
				})
			
			
			}