function openwin(theURL, widthvar, heightvar)
	{
		var nw	= null;
		w		= screen.width;
		w		= (w - 10) / 2 - (widthvar / 2)
		h		= screen.height;
		ah		= (h - 80) / 2 - (heightvar / 2)
		if (nw && nw.open && !nw.closed)
		{
			nw.focus();
		}
		else
		{
			nw = window.open(theURL, 'window' + parseInt(Math.random()*99999999), 'fullscreen=no, scrollbars=yes, toolbar=no, location=no, status=yes, menubar=no, resizable=yes, directories=no, width=' + widthvar + ', height=' + heightvar );
			if(!nw)
			{
				alert("Popup windows for this site have been disabled.\n\nPlease ensure popup blockers have been disabled for this site.");
			}
			else
			{
				nw.moveTo(w,ah);
			}
		}
	}