function externalLinks() {
if (!document.getElementsByTagName) return;
var anchors = document.getElementsByTagName("a");
for (var i=0; i<anchors.length; i++) {
var anchor = anchors[i];
if (anchor.getAttribute("href") &&
anchor.getAttribute("rel") == "external")
anchor.target = "_blank";
}
}
window.onload=externalLinks;

//ページアップのスクリプト
function pageup(e) {
	UAGENT = navigator.userAgent.toUpperCase();
	if (UAGENT.indexOf("MSIE") >=0) { posi = event.y; }
	else { posi = e.pageY; }
	moveObje(posi);
}
function moveObje(position) {
	move = position / 10;
	point = parseInt(position - move);
	scrollTo(0,point);
	if (point > 0) { setTimeout("moveObje(point)",10); }
}