var dX = 300;
var dY = 300;
function mydivMove(x, y){
    var id = 'Layer1';
    if (document.layers){
        document.layers[''+id+''].left = x;
        document.layers[''+id+''].top = y;
    }
    else if (document.all){
        document.all[''+id+''].style.left=x;
        document.all[''+id+''].style.top=y;
    }
    else if (document.getElementById){
        document.getElementById(''+id+'').style.left=x+"px";
        document.getElementById(''+id+'').style.top=y+"px";
    }
}

var ww,hh;
function checkLocation(w,h)
{var initw=document.body.clientWidth/2-230;
 var inith=(document.body.clientHeight-500)/2;
 ww=w,hh=h;
	//mydivMove(initw,document.body.scrollTop);
	mydivMove(initw+w,document.body.scrollTop+inith+h);
	setTimeout("checkLocation(ww,hh)",-20)}