var isDOM = (document.getElementById ? true : false); 
var isIE4 = ((document.all && !isDOM) ? true : false);
var isNS4 = (document.layers ? true : false);
var isNS = navigator.appName == "Netscape";

function getRef(id) {
	if (isDOM) return document.getElementById(id);
	if (isIE4) return document.all[id];
	if (isNS4) return document.layers[id];
}

function getSty(id) {
	x = getRef(id);
	return (isNS4 ? getRef(id) : getRef(id).style);
}

var scrollerHeight = 372;
var puaseBetweenImages = 3000;
var imageIdx = 0;

function moveRightEdge() {
	var yMenuFrom, yMenuTo, yOffset, timeoutNextCheck;

	if (isNS4) {
		yMenuFrom   = DivTop.top;
		yMenuTo     = windows.pageYOffset;   // À§ÂÊ À§Ä¡
	} else if (isDOM) {
		yMenuFrom   = parseInt (DivTop.style.top, 10);
		yMenuTo     = (isNS ? window.pageYOffset : document.body.scrollTop); // À§ÂÊ À§Ä¡
	}
	timeoutNextCheck = 500;

	if (yMenuFrom != yMenuTo) {
		yOffset = Math.ceil(Math.abs(yMenuTo - yMenuFrom) / 20);
		if (yMenuTo < yMenuFrom)
			yOffset = -yOffset;
		if (isNS4)
			DivTop.top += yOffset;
		else if (isDOM)
			DivTop.style.top = parseInt (DivTop.style.top, 10) + yOffset;
			timeoutNextCheck = 10;
	}
	setTimeout ("moveRightEdge()", timeoutNextCheck);
}

document.write("\
<div id='DivTop' style='VISIBILITY:visible; POSITION:absolute;left:50%;'>\
<div id='DivTop' style='VISIBILITY:visible; position:relative;top:0;left:456'>\
<table width border=0 cellpadding=0 cellspacing=0 style='margin:560 0 0 0'>\
<a href=#><img src='http://www.getgoal.com.tw/transfer/images/mtop.gif' border=0></a>\
</table>\
</div>\
</div>\
");

if (isNS4) {
	var DivTop = document["DivTop"];
	DivTop.top = top.pageYOffset;
	DivTop.visibility = "visible";
	moveRightEdge();
} else if (isDOM) {
	var DivTop = getRef('DivTop');
	DivTop.style.top = (isNS ? window.pageYOffset : document.body.scrollTop);
	DivTop.style.visibility = "visible";
	moveRightEdge();
}