function newsletter()
{
	URL = "fileadmin/newsletter.php";
	open(URL,'newsletter','width=360,height=280,menubar=no,location=no,scrollbars=no,resizable=no');
}

function service(nummer)
{
	URL = "fileadmin/service_liste.php?id="+nummer;
	open(URL,'newsletter','width=500,height=350,menubar=no,location=no,scrollbars=yes,resizable=no');
}