function zeigMenue(welches)
{
        document.getElementById("stgeorgenhistorisch_menue").style.display="none";
        document.getElementById("stgeorgenheute_menue").style.display="none";
        document.getElementById("kultur_menue").style.display="none";
        document.getElementById("befreundetevereine_menue").style.display="none";
        document.getElementById("privateinitiativen_menue").style.display="none";
        switch (welches)
        {
        case '1':
                document.getElementById("stgeorgenhistorisch_menue").style.display="block";
                break;
        case '2':
                document.getElementById("stgeorgenheute_menue").style.display="block";
                break;
        case '3':
                document.getElementById("kultur_menue").style.display="block";
                break;
        case '4':
                document.getElementById("befreundetevereine_menue").style.display="block";
                break;
        case '5':
                document.getElementById("privateinitiativen_menue").style.display="block";
                break;
        default:
        }
}