lastScrollY=0; 
function CityBeat(){ 
diffYCity=document.body.scrollTop; 
percentCity=.1*(diffYCity-lastScrollY); 
if(percentCity>0)percentCity=Math.ceil(percentCity); 
else percentCity=Math.floor(percentCity); 
document.all.lovexin3.style.pixelTop+=percentCity; 
document.all.lovexin4.style.pixelTop+=percentCity; 
lastScrollY=lastScrollY+percentCity; 
} 
suspendcode3="<DIV id=lovexin3 style='right:3px;POSITION:absolute;TOP:100px;'><a href='http://www.petking.cn' title='³èÎïÍõ' target='_blank'><img border=0 src='http://www.petking.cn/images/banner-petking.gif'></a></div>" 
document.write(suspendcode3); 
suspendcode4="<DIV id=lovexin4 style='left:3px;POSITION:absolute;TOP:100px;'><a href='http://www.petking.cn' title='³èÎïÍõ' target='_blank'><img border=0 src='http://www.petking.cn/images/banner-petking.gif'></a></div>" 
document.write(suspendcode4); 

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