function traceandtracking ()
{
	var t = (screen.availHeight-420) / 2;
	var l = (screen.availWidth-1000) / 2;
	
	Fenster=window.open('http://62.159.250.190/dako/','Tracking','width=1000,height=420,top='+t+',left='+l+',directories=no,toolbar=no,location=no,menubar=no,scrollbars=yes,status=no,resizable=no,dependent=no');
	if (Fenster) return false;
  else return true;
}