function nav(page, school, actie) {
  document.forms[0].o.value = page;
  if (school) document.forms[0].school.value = school;
  if (actie) document.forms[0].actie.value = actie;
  document.forms[0].submit();
}

function popup_test(url) {
  var w = window.open("/cgi-bin/de_test/vst.cgi", "Properties", "scrollbars=1, status=0, resizable=0, width=838, height=504");
  w.focus();
}