// popup menu

  function popup(url, name, width, height) {
  	var winleft = (screen.width - width) / 2;
	var winUp = (screen.height - height) / 2;
		settings=
		"toolbar=no,locationbar=no,directories=no,"+
		"statusbar=no,menubar=no,scrollbars=yes,"+
		"left="+winleft+",top="+winUp+
		"resizable=yes,width="+width+",height="+height;
		
		MyNewWindow=window.open(url,name,settings);
	}