lastScrollY = 0;
function heartBeat(){
var diffY;
if (document.documentElement && document.documentElement.scrollTop)
diffY = document.documentElement.scrollTop;
else if (document.body)
diffY = document.body.scrollTop
else
{/*Netscape stuff*/}
percent=.1*(diffY-lastScrollY);
if(percent>0)percent=Math.ceil(percent);
else percent=Math.floor(percent);
document.getElementById("leftDiv").style.top = parseInt(document.getElementById("leftDiv").style.top)+percent+"px";
document.getElementById("rightDiv").style.top = parseInt(document.getElementById("rightDiv").style.top)+percent+"px";
lastScrollY=lastScrollY+percent;
}
window.setInterval("heartBeat()",1);
function close_left(){
   document.getElementById("left").style.visibility='hidden';
}
function close_right(){
   document.getElementById("right").style.visibility='hidden';
}
document.writeln("<style type=\"text\/css\">");
document.writeln("#leftDiv,#rightDiv{width:100px;height:100px;position:absolute;}");
document.writeln(".itemFloat{width:100px;height:auto;line-height:5px}");
document.writeln("<\/style>");
//以下为主要内容
document.writeln("<div id=\"leftDiv\" style=\"top:140px;left:130px\">");
//------左侧各块开始
//---L1
document.writeln("<div id=\"left\" class=\"itemFloat\">");
document.writeln("<a target=_blank href=><img border=0 src='http://www.booloong.com/UploadFile/Gg_Images/2012011839903393.jpg' width=100 height=300></a>");
document.writeln("<br><a href=\"javascript:close_left();\" title=\"关闭上面的广告\"><img src=images/close.gif border=0><\/a><br><br><br><br>");
document.writeln("<\/div>");
//------左侧各块结束
document.writeln("<\/div>");
document.writeln("<div id=\"rightDiv\" style=\"top:140px;right:130px\">");
//------右侧各块结束
//---R1
document.writeln("<div id=\"right\" class=\"itemFloat\">");
document.writeln("<a target=_blank href=><img border=0 src='http://www.booloong.com/UploadFile/Gg_Images/2012011839903393.jpg' width=100 height=300></a>");
document.writeln("<br><a href=\"javascript:close_right();\" title=\"关闭上面的广告\"><img src=images/close.gif border=0><\/a><br><br><br><br>");
document.writeln("<\/div>");
//------右侧各块结束
document.writeln("<\/div>");