lastScrollY=0;

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

function heartBeat(){
	
    var abc=document.getElementById("rifloat");
    if(!abc)
        return;
        
	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("rifloat").style.top=parseInt(document.getElementById("rifloat").style.top)+percent+"px";	
	
	lastScrollY=lastScrollY+percent;  

}