var mtop=115; var mleft=36;
var lyr1_left=160; var ltop=115;
var mi=1; //滑行格距
var dn=1; //正反方向, 反方向為 -1
//var lmg=800; var rmg=830; //左右邊界座標
var lmg=screen.width-140; var rmg=screen.width-130; //左右邊界座標
var tmg=50; //上座標

function Adn() {
	IE4=(document.all)?1:0
	//NN4=(document.layers)?1:0
	if (IE4)
	setInterval('iimgscroll_ie("adn",tmg,lmg)',100)
	
	//if (NN4)
	//setInterval('iimgscroll_ns("adn",tmg-1,lmg)',100)
}
function iimgscroll_ie(Name,Top,Left) {
	//RealTop=parseInt(document.body.scrollTop);
	RealTop=document.body.scrollTop;
	//window.status=document.body.scrollTop+'---'+document.body.scrollHeight;
	document.all['adn'].style.top=Top+RealTop;
	document.all['adn'].style.left=parseInt(document.all['adn'].style.left)+(mi*dn);
	if (parseInt(document.all['adn'].style.left)>rmg) {dn=-1;}
	if (parseInt(document.all['adn'].style.left)<lmg) {dn=1;}
}
function iimgscroll_ns(Name,X,Y) {
	RealX=self.pageYOffset+X
	//RealX=parseInt(document.body.scrollTop)+X
	RealY=parseInt(document.adn.left)+(mi*dn);
	if (RealY>rmg) {dn=-1;}
	if (RealY<lmg) {dn=1;}
	document.adn.moveTo(RealY,RealX)
}