var fenster; 

function Info(i) 
	{
	if (fenster && !fenster.closed)
		fenster.close();

        if (i == 'volksfest1')   {breite = 243; hoehe = 300; fenster=window.open(i+".htm", "popup","toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no,width="+breite+",height="+hoehe+","+zentrieren(breite, hoehe));}

	fenster.focus();
	}