<!--
var ns=0; var ng=0; var menues=4;
if (document.layers) {ns=1; doc=document;}
if (document.getElementById) {ng=1; doc=document;}
function menuup(nr) {
  if (ns) {
    document.submenu_all.visibility='hidden';
    for (i=1; i<=menues; i++) {doc['menu'+i].visibility='hidden';}
    doc['menu'+nr].visibility='visible';
  }
  if (ng) {
    document.getElementById('submenu_all').style.visibility='hidden';
    for (i=1; i<=menues; i++) {doc.getElementById('menu'+i).style.visibility='hidden';}
    doc.getElementById('menu'+nr).style.visibility='visible';
  }
}
function menudown() {
  if (ns) {
    document.submenu_all.visibility='visible';
    for (i=1; i<=menues; i++) {doc['menu'+i].visibility='hidden';}
  }
  if (ng) {
    document.getElementById('submenu_all').style.visibility='visible';
    for (i=1; i<=menues; i++) {doc.getElementById('menu'+i).style.visibility='hidden';}
  }
}
//-->