function openFenster(loc, dx, dy)
{
        NewWin=window.open(loc,'NewWin','menubar=0,resizable=0,scrollbars=0,top=20,left=145,width=' + dx + ',height=' + dy);
        //if ( javascript_version > 1.0 )
                setTimeout('NewWin.focus();',250);
        return(true);
}