function jumpToPageTop(e) {
 UAGENT = navigator.userAgent.toUpperCase();
 if (UAGENT.indexOf("MSIE") >=0) {
  pos = event.y;
 } else {
  pos = e.pageY;
 }
 pageScroll(pos);
}

function pageScroll(posi) {
 dist = posi / 6;
 nPos = parseInt(posi - dist);
 scrollTo(0,nPos);
 if (nPos > 0) {
  setTimeout("pageScroll(nPos)",10);
 }
}