lastScrollY = 0;
	function heartBeat() {
		diffY	= document.body.scrollTop;
		percent =.1*(diffY-lastScrollY);

		if(percent>0) percent = Math.ceil(percent);
		else percent = Math.floor(percent);

		document.all.float.style.pixelTop+= percent;
		lastScrollY = lastScrollY+percent;
	}
	window.setInterval("heartBeat()",1);