function WindowOpen(URL, Breite, Hoehe)
{
    var Optionen = "toolbar=0,scrollbars=1,location=0,statusbar=0,menubar=0,resizable=1";
    OffenesFenster = window.open(URL, '123', Optionen + ',width=' + Breite + ',height=' + Hoehe);
}
 
function close_window()
{
    window.close();
}