var nav_preloaded = false;

    function nav_preloadImages() {
        if (document.images) {
            nav_ensembles_tmp       = newImage("/media/images/navigation/ensembles_over.gif");
            nav_podia_tmp           = newImage("/media/images/navigation/podia_over.gif");
            nav_concertagenda_tmp   = newImage("/media/images/navigation/concertagenda_over.gif");
            nav_ensembles_tmp2      = newImage("/media/images/navigation/ensembles.gif");
            nav_podia_tmp2          = newImage("/media/images/navigation/podia.gif");
            nav_concertagenda_tmp2  = newImage("/media/images/navigation/concertagenda.gif");
            nav_feedbackmail_tmp    = newImage("/media/images/navigation/feedbackmail_over.gif");
            
            nav_preloaded = true;
        }
    }

    function nav_over( img ) {
        status_msg  = '';

        if (document.images && (nav_preloaded == true)) {
            if (img == 'ensembles'      && document.nav_ensembles)    { document.nav_ensembles.src      = "/media/images/navigation/ensembles.gif";      status_msg='Ga naar Ensembles!'; }
            if (img == 'podia'          && document.nav_podia)        { document.nav_podia.src          = "/media/images/navigation/podia.gif";                status_msg='Ga naar Podia!'; }
            if (img == 'concertagenda'  && document.nav_concertagenda){ document.nav_concertagenda.src  = "/media/images/navigation/concertagenda.gif";        status_msg='Ga naar de Concertagenda!'; }
            if (img == 'feedbackmail'   && document.nav_feedbackmail) { document.nav_feedbackmail.src   = "/media/images/navigation/feedbackmail_over.gif";    status_msg='Geef Feedback!'; }
        }

        window.status = status_msg;
    }
    
    function nav_out( img ) {
        status_msg  = '';
        
        if (document.images && (nav_preloaded == true)) {
            if (img == 'ensembles'      && document.nav_ensembles)      { document.nav_ensembles.src      = "/media/images/navigation/ensembles_over.gif"; }
            if (img == 'podia'          && document.nav_podia)          { document.nav_podia.src          = "/media/images/navigation/podia_over.gif"; }
            if (img == 'concertagenda'  && document.nav_concertagenda)  { document.nav_concertagenda.src  = "/media/images/navigation/concertagenda_over.gif"; }
            if (img == 'feedbackmail'   && document.nav_feedbackmail)   { document.nav_feedbackmail.src   = "/media/images/navigation/feedbackmail.gif"; }
        }

        window.status = status_msg;
    }

    // kept in sitewide.js, issues multiple onloads
    SafeAddOnload(nav_preloadImages);