function open_url(typ) {
		if (typ=="client") window.open("https://smtp.web-shuttle.de/cgi-bin/webmail/omail.pl/","Mailclient","width=800,height=600,resizable=yes,toolbar=yes,scrollbars")
		else if (typ=="admin") window.open("https://smtp.web-shuttle.de/omail-admin/","Mailadmin","width=800,height=600,resizable=yes,toolbar=yes,scrollbars");
		else if (typ=="anleitung") window.open("../../pdf/webmailer.pdf","Anleitung","width=800,height=600,resizable=yes,toolbar=yes");
		else if (typ=="statistik") window.open("http://stats.web-shuttle.de/remote_login.pl?","Statistik","width=800,height=600,resizable=yes,toolbar=yes,scrollbars");
	}