function close_all() {
  var submenus = new Array(4), i, element;

  submenus[0] = "submenu_tinis";
  submenus[1] = "submenu_partners";
  submenus[2] = "submenu_interreg";
  submenus[3] = "submenu_catalogues";

  for (i = 0; i <= 3; i++) {
    element = document.getElementById(submenus[i]);
    element.style.display = "none";
  }

  return true;
}



function menu_expand(id) {
  var element;

  if (!document.getElementById)
    return;

  element = document.getElementById(id);

  if (element.style.display == "none" || element.style.display == "") {
    close_all();
    element.style.display = "block";
  } else {
    close_all();
  }
  return true;
}


function close_all2() {
  var submenus = new Array(3), i, element;

  submenus[0] = "submenu_members";
  submenus[1] = "submenu_documents";
  submenus[2] = "submenu_discussions";

  for (i = 0; i <= 2; i++) {
    element = document.getElementById(submenus[i]);
    element.style.display = "none";
  }

  return true;
}



function menu_expand2(id) {
  var element;

  if (!document.getElementById)
    return;

  element = document.getElementById(id);

  if (element.style.display == "none" || element.style.display == "") {
    close_all();
    element.style.display = "block";
  } else {
    close_all();
  }
  return true;
}