/*
十三妖
qq:181907667
msn:wl181907667@hotmail.com
邮箱:thirdteendevil@163.com
*/
function floatAdver(){
 this.fDivs = new Array();//浮动广告对象数组
 this.divCount = 0 ; //浮动广告对象数量
 this.h = 5;//距离顶部距离
 this.fDiv;
 this.bodyScrollTop=0;
 this.lDiv = document.createElement("DIV");
 this.rDiv = document.createElement("DIV");
 this.lDivCssText = "position:absolute;top:0px;left:10px;border:0px solid #666;overflow:hidden;";
 this.rDivCssText = "position:absolute;top:0px;right:10px;border:0px solid #666;overflow:hidden;";
 this.lDivInner = "";
 this.rDivInner = "";
}
floatAdver.prototype = {
 createInfo:function(lcss,rcss,linfo,rinfo,h){ //设置两边浮动层信息
  this.lDivCssText += lcss;
  this.rDivCssText += rcss;
  this.lDivInner = linfo;
  this.rDivInner = rinfo;
  this.h = h;
 },
 createFloatDiv:function(){ // 创建２个浮动层
   
  this.lDiv.style.cssText = this.lDivCssText; 
  this.rDiv.style.cssText = this.rDivCssText;
  this.lDiv.innerHTML = this.lDivInner;
  this.rDiv.innerHTML = this.rDivInner;
  document.body.appendChild(this.rDiv);
  document.body.appendChild(this.lDiv);
  //this.rDiv.id="r";
  //this.lDiv.id="l";
  this.divCount++;
  
 },
 createAdvPro:function(){ //类内部创建层的浮动过程
  
  this.bodyScrollTop = document.documentElement.scrollTop?document.documentElement.scrollTop:document.body.scrollTop;  
  if(this.rDiv != this.bodyScrollTop + this.h)
  {
   this.$(this.rDiv).style.top = parseInt(this.$(this.rDiv).style.top) + Math.ceil((this.bodyScrollTop + this.h - parseInt(this.$(this.rDiv).style.top))/20) + "px"; 
   this.$(this.lDiv).style.top = this.$(this.rDiv).style.top;
  }  
  
 },
 
 createAdv:function(){ //调用内部浮动 入口!!
 
  var _this = this;
  _this.createFloatDiv();
  setInterval(function(){_this.createAdvPro();},10);
  
 },
 floatPro:function(){//非类内部创建层的 浮动效果
 
  this.bodyScrollTop = document.documentElement.scrollTop;  
  if(this.fDiv.style.top != this.bodyScrollTop + this.h)
  {
   this.$(this.fDiv).style.top = parseInt(this.$(this.fDiv).style.top) + Math.ceil((this.bodyScrollTop + this.h - parseInt(this.$(this.fDiv).style.top))/20) + "px";
   
  }
 },
 $:function(o){ //获取对象
  
  if(typeof(o) == "string")
  return document.getElementById(o);
  return o;
 },
 begins:function(o,h){//调用浮动 入口!!
  var _this = this;
  _this.fDiv = _this.$(o);
  _this.h = h;
  //alert(this.fDiv.id);
  setInterval(function(){_this.floatPro();},10);
 }
}