function rollup() {
var scrj = 1;
if(navigator.appName == "Microsoft Internet Explorer" && document.compatMode == "CSS1Compat") {
var scdist = document.body.parentNode.scrollTop;
} else {
var scdist = document.body.scrollTop;
}
if(scrj<50 && scdist) {
scdist = (scdist>2) ? Math.ceil(scdist*.2) : 1;
scrj++;
scrollBy(0,-scdist);
setTimeout("rollup()",20);
} else {
scrollTo(0,0);//ここで好きな位置に指定。横の動き→前の数値　縦の動き→後ろの数値
scrj = 1;
} }