function backToTop() {
var x1 = x2 = x3 = 0;
var y1 = y2 = y3 = 0;
if (document.documentElement) {
x1 = document.documentElement.scrollLeft || 0;
y1 = document.documentElement.scrollTop || 0;
}
if (document.body) {
x2 = document.body.scrollLeft || 0;
y2 = document.body.scrollTop || 0;
}
x3 = window.scrollX || 0;
y3 = window.scrollY || 0;
var x = Math.max(x1, Math.max(x2, x3));
var y = Math.max(y1, Math.max(y2, y3));
window.scrollTo(Math.floor(x / 2), Math.floor(y / 2));
if (x > 0 || y > 0) {
window.setTimeout("backToTop()", 25);
}
} 

//別ウィンドウスクリプト//
//function disp(url){

	//window.open(url, "another", "width=750,scrollbars=yes");

//}

function disp(bukusan){
	var Setting;
	Setting = 'status=0,scrollbars=1,resizable=1,menubar=0,'
	+'location=0,toolbar=1,width=700,height=800';
	TulongBintana = window.open(bukusan, "", Setting);
	TulongBintana.moveTo(100,100);
	TulongBintana.focus();
}