var sub = window;
function disp( name, subwindow, w, h ) {
if ((sub == window) || sub.closed)
	{
	 sub = open( name,subwindow,"toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=yes,width="+w+",height="+h );
	}
	else
	{
	 sub.close();
	 sub = open( name,subwindow,"toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=yes,width="+w+",height="+h );
	}
return;
}