// JavaScript Document

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 = 200;//距离顶部距离
this.fDiv;
this.lDiv = "";
this.rDiv = "";
this.lDivCssText = "position:absolute;top:0px;left:0px;overflow:hidden;";
this.rDivCssText = "position:absolute;top:0px;right:10px;width:100px;height:200px;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 = document.createElement("div");
this.rDiv = document.createElement("div");
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
var bodyScrollTop = document.documentElement.scrollTop;
if(this.rDiv != bodyScrollTop + this.h)
{
this.$(this.rDiv).style.top = parseInt(this.$(this.rDiv).style.top) + Math.ceil((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
var bodyScrollTop = document.documentElement.scrollTop;
if(this.fDiv.style.top != bodyScrollTop + this.h)
{
this.$(this.fDiv).style.top = parseInt(this.$(this.fDiv).style.top) + Math.ceil((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);
}
}
window.onload = function(){
var m = new floatAdver();
//m.begins("b",200);
var m2 = new floatAdver();
//m2.begins("a",200);
m2.createInfo("width:159px;height:360px;background:url(http://www.sdtlv.com/template/images/0.gif)","","<div style='font-size:12px;color:#990000;padding:145px 0 0 0;line-height:26px;text-align:center;'><a href='http://www.sdtlv.com/chunjie.htm'>※北京春节旅游</a><br><a href='#changchengA'>※长城一日游</a><br><a href='#gudu'>※古都一日游</a><br><a href='#aoyun'>※奥运一日游</a><br><a href='#wenhua'>※文化一日游</a><br><a href='#xiuxian'>※休闲一日游</a><br><a href='http://www.sdtlv.com/chunjie.htm'>※北京多日游</a></div>","",200);
m2.createAdv();
}