function Popanim(PageName)
{
	var popUp;
	var windowTop = ((screen.height/2) - (480/2));
	var windowLeft = ((screen.width/2) - (488/2));
	var windowProps = "width=488,height=480,scrollbars=0,resizable=0,top="+windowTop+",left="+windowLeft;
	popUp = window.open(PageName, "Heartrisk", windowProps);
	var NS = (navigator.appName=="Netscape")?true:false;
}