function Scroll() {
if(navigator.appName == "Microsoft Internet Explorer" && document.compatMode == "CSS1Compat") {
sctop = document.body.parentNode.scrollTop;
}else if(window.pageYOffset){
sctop = window.pageYOffset;
}else{
sctop = document.body.scrollTop;
}
if(sctop){
scup = Math.ceil(sctop*.2);
scrollBy(0,-scup);
if (sctop-scup) setTimeout("Scroll()",20);
}
}