lastScrollY=-10; a2=0;
function more(){a2=document.body.scrollTop - lastScrollY}
function start(){
if (document.body.scrollTop != lastScrollY)
{a1=document.body.scrollTop-lastScrollY;
window.setTimeout("more()", 5);
if (a1==a2) {if (a1>0) percent=Math.ceil(a1);
else a1=Math.floor(a1); document.all.slide.style.pixelTop+=a1;
lastScrollY+=a1}}}
action=window.setInterval("start()", 250);