function oeffnefenster (url) {
	fenster=window.open(url, "_blank", "width=770,height=475,status=yes,resizable=no");
	fenster.focus();
	return false;
}

function oeffneimpressum (url) {
	fenster=window.open(url, "_blank", "width=530,height=600,status=yes,resizable=no,scrollbars=yes");
	fenster.focus();
	return false;
}