/*ページの先頭 */
function pageup(e) {
UAGENT = navigator.userAgent.toUpperCase();
if (UAGENT.indexOf("MSIE") >=0) { posi = event.y; }
else { posi = e.pageY; }
moveObje(posi);
}

/* ボタン */
function moveObje(position) {
move = position / 15;
point = parseInt(position - move);
scrollTo(0,point);
if (point > 0) { setTimeout("moveObje(point)",15); }
}