lastScrollY=0; 

function heartBeat1(){ 
	diffY=document.body.scrollTop; 
	percent=.1*(diffY-lastScrollY); 
	if(percent>0)percent=Math.ceil(percent); 
	else percent=Math.floor(percent); 
	document.all.lovexin69.style.pixelTop+=percent;
 
	lastScrollY=lastScrollY+percent; 
} 

suspendcode69="<div id=lovexin69 style='right:5px;POSITION:absolute;TOP:360px;'><a href='http://www.ynzb.com.cn/xgxx/pbzj/default.asp' target='_blank'><img src='includefile/pbzj.gif' width='110' height='100' border=0 alt=''></a></div>"
document.write(suspendcode69); 

window.setInterval("heartBeat1()",1);