var lastScrollY=0;
function heartBeat(){ 
diffY=document.documentElement.scrollTop; 
percent=0.1*(diffY-lastScrollY); 
if(percent>0)percent=Math.ceil(percent); 
else percent=Math.floor(percent); 
document.getElementById("ad").style.top=parseInt(document.getElementById("ad").style.top)+percent+"px";
lastScrollY=lastScrollY+percent; 
}
window.setInterval("heartBeat()",1);

var lastScrollY1=0;
function heartBeat1(){ 
diffY=document.documentElement.scrollTop; 
percent=0.1*(diffY-lastScrollY1); 
if(percent>0)percent=Math.ceil(percent); 
else percent=Math.floor(percent); 
document.getElementById("Div1").style.top=parseInt(document.getElementById("Div1").style.top)+percent+"px";
lastScrollY1=lastScrollY1+percent; 
}
window.setInterval("heartBeat1()",1);