function PreLoad(obj,val) {
    var d = document;
    var img = obj;
    d.img = new Image();
    d.img.src = val;
}
if(navigator.userAgent.indexOf("MSIE")!=-1){
	function pop_img_on(pimg){
		var scX,scY,X=event.x,Y=event.y,popX=-220,popY=-150,blws=document.body.clientHeight;
		if(Y>blws-130){
			Y*=0.75;
		}else if(Y<150){
			Y+=110;
		}
		scX=document.body.scrollLeft;
		scY=document.body.scrollTop;
		document.getElementById(pimg).style.visibility="visible";
		document.getElementById(pimg).style.left=popX+X+scX;
		document.getElementById(pimg).style.top=popY+Y+scY;
	}
	function pop_img_off(pimg){
		document.getElementById(pimg).style.visibility="hidden";
	}
}