function display_wegweiser () {
    
    var submenuTable = document.getElementById('table_submenu');
    var inhalt       = document.getElementById('wegweiser_inhalt');
    var submenu      = document.getElementById('wegweiser_submenu');
    var helpmenu     = document.getElementById('wegweiser_helpmenu');
    
    if(submenuTable) {
        submenu.style.display  = "inline";
        //inhalt.style.display   = "none";
        //helpmenu.style.display = "none";
        
    } else {
        //submenu.style.display  = "none";
        inhalt.style.display   = "inline";
        helpmenu.style.display = "inline";
    }
}