lastScrollY = 0;
NS = (document.layers) ? 1 : 0;
IE = (document.all) ? 1: 0;
if(IE) document.all.up.style.pixelTop = 100;
if(NS) document.up.top = 100;
if(IE) document.all.up.style.pixelLeft = 10;
if(NS) document.up.left = 10;

function alex()
{
	if(IE) {diffY=document.body.scrollTop; diffX=document.body.scrollLeft;}
	if(NS) {diffY=self.pageYOffset; diffX=self.pageXOffset;}
	if(diffY!=lastScrollY)
	{
	percent=.1*(diffY-lastScrollY);
	if(percent>0) percent=Math.ceil(percent);
	else percent=Math.floor(percent);

	if(IE) document.all.up.style.pixelTop+=percent;
	if(NS) document.up.top+=percent;
	lastScrollY=lastScrollY+percent;
	}
}
if(NS || IE) action=window.setInterval("alex()",1);