JS图片轮换

var RevealTrans = Class.create();
RevealTrans.prototype = {
  initialize: function(container, options) {
    this._img = document.createElement("img");
    this._a = document.createElement("a");
    
    this._timer = null;//计时器
    this.Index = 0;//显示索引
    this._onIndex = -1;//当前索引
    
    this.SetOptions(options);
    
    this.Auto = !!this.options.Auto;
    this.Pause = Math.abs(this.options.Pause);
    this.Duration = Math.abs(this.options.Duration);
    this.Transition = parseInt(this.options.Transition);
    this.List = this.options.List;
    this.onShow = this.options.onShow;
    
    //初始化显示区域
    this._img.style.visibility = "hidden";//第一次变换时不显示红x图
    this._img.style.width = this._img.style.height = "100%"; this._img.style.border = 0;
    this._img.onmouseover = Bind(this, this.Stop);
    this._img.onmouseout = Bind(this, this.Start);
    isIE && (this._img.style.filter = "revealTrans()");
    
    this._a.target = "_blank";
    
    $(container).appendChild(this._a).appendChild(this._img);
  },