function aktuell() {
    parent.nav_oli.location = "nav_oli_aktuell.html";
    parent.nav_o.location = "nav_o_leer.html";
    parent.nav_li.location = "nav_li_aktuell.html";
    parent.mainframe.location = "m_aktuell.html";
   }

function aktuell_e() {
    parent.nav_oli.location = "nav_oli_aktuell.html";
    parent.nav_o.location = "nav_o_leer.html";
    parent.nav_li.location = "nav_li_aktuell.html";
    parent.mainframe.location = "../html_de/m_aktuell.html";
   }

function inhalt() {
    parent.nav_oli.location = "nav_oli_inhalt.html";
    parent.nav_o.location = "nav_o_konzept.html";
    parent.nav_li.location = "nav_li_inhalt.html";
    parent.mainframe.location = "m_konzept.html";
   }

function teilnehmer() {
    parent.nav_oli.location = "nav_oli_teilnehmer.html";
    parent.nav_o.location = "nav_o_leer.html";
    parent.nav_li.location = "nav_li_teilnehmer.html";
    parent.mainframe.location = "m_teilnehmer.html";
   }

function beitrag() {
    parent.nav_oli.location = "nav_oli_beitrag.html";
    parent.nav_o.location = "nav_o_ausstellung.html";
    parent.nav_li.location = "nav_li_beitrag.html";
    parent.mainframe.location = "m_ausstellung.html";
   }

function programm() {
    parent.nav_oli.location = "nav_oli_programm.html";
    parent.nav_o.location = "nav_o_leer.html";
    parent.nav_li.location = "nav_li_programm.html";
    parent.mainframe.location = "m_programm.html";
   }

function school() {
    parent.nav_oli.location = "nav_oli_school.html";
    parent.nav_o.location = "nav_o_kurzinfo.html";
    parent.nav_li.location = "nav_li_school.html";
    parent.mainframe.location = "m_kurzinfo.html";
   }

function schoolan() {
    parent.nav_oli.location = "nav_oli_school.html";
    parent.nav_o.location = "nav_o_anmeldung.html";
    parent.nav_li.location = "nav_li_school.html";
    parent.mainframe.location = "m_anmeldung.html";
   }

function presse() {
    parent.nav_oli.location = "nav_oli_presse.html";
    parent.nav_o.location = "nav_o_pr_mitteilung.html";
    parent.nav_li.location = "nav_li_presse.html";
    parent.mainframe.location = "m_pr_mitteilung.html";
   }

function veranstalt() {
    parent.nav_oli.location = "nav_oli_veranstalt.html";
    parent.nav_o.location = "nav_o_team.html";
    parent.nav_li.location = "nav_li_veranstalt.html";
    parent.mainframe.location = "m_team.html";
   }

function service() {
    parent.nav_oli.location = "nav_oli_service.html";
    parent.nav_o.location = "nav_o_service.html";
    parent.nav_li.location = "nav_li_service.html";
    parent.mainframe.location = "m_service.html";
   }

function download() {
    parent.nav_oli.location = "nav_oli_download.html";
    parent.nav_o.location = "nav_o_leer.html";
    parent.nav_li.location = "nav_li_download.html";
    parent.mainframe.location = "m_download.html";
   }