//定义左联图片的所在位置及其链接目标的地址
var leftsrc = "left.jpg";
var leftlink = "#";
//定义右联图片的所在位置及其链接目标的地址
var rightsrc =  "right.jpg";
var rightlink = "http://www.zslfw.com/biao.asp";
//定义“关闭”按钮图片的所在位置
var closesrc ="close.gif";

lastScrollY=200;

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*/}
//alert(diffY);
percent=.1*(diffY-lastScrollY); 
if(percent>0)percent=Math.ceil(percent); 
else percent=Math.floor(percent); 
document.getElementById("leftFloater").style.top=parseInt(document.getElementById
("leftFloater").style.top)+percent+"px";
document.getElementById("rightFloater").style.top=parseInt(document.getElementById("rightFloater").style.top)+percent+"px";
lastScrollY=lastScrollY+percent; 
//alert(lastScrollY);
} 

leftFloaterDIV="<div id=\"leftFloater\" style='left:2px;position:absolute;top:500px; cursor:pointer;'><div onclick=javascript:window.open(\"" + leftlink + "\")><img src=\"" + leftsrc +"\" /></div><div onclick=\"document.getElementById('leftFloater').style.display = 'none'; document.getElementById('leftFloater').style.display = 'none';\" style='text-align:right;'><img src=\"" + closesrc +"\" /></div></div>"
rightFloaterDIV="<div id=\"rightFloater\" style='right:2px;position:absolute;top:500px; cursor:pointer;background:url(right.jpg) no-repeat;height:127px;padding-left:27px; padding-top:50px;width:108px'><div><a target=_blank href=http://wpa.qq.com/msgrd?v=3&uin=1906214729&site=qq&menu=yes><img border=0 src=http://wpa.qq.com/pa?p=2:1906214729:41 alt=点击这里给我发消息 title=点击这里给我发消息></a></div><div onclick=\"document.getElementById('leftFloater').style.display = 'none'; document.getElementById('rightFloater').style.display = 'none';\" style='text-align:left;margin-top:18px;float:right;padding-right:10px;'><img src=\"" + closesrc +"\" /></div></div>"

document.write(leftFloaterDIV); 
document.write(rightFloaterDIV); 
 
window.setInterval("heartBeat()",1);