function OnLoad () {
  InitAddBookmark ();
 }

function InitAddBookmark () {
  if (window.sidebar && window.sidebar.addPanel || window.external)
    document.getElementById('favorit').style.visibility='visible';
 }

function AddBookmark () {
  if (window.sidebar && window.sidebar.addPanel)
    window.sidebar.addPanel (document.title, document.URL, '');
  else if (window.external)
    window.external.AddFavorite (document.URL, document.title);
 }

function SelectApartShow () {
  document.getElementById('select_apart').style.visibility='visible';
  document.getElementById('select_apart_down').style.visibility='visible';
 }

function SelectApartHide () {
  document.getElementById('select_apart').style.visibility='hidden';
  document.getElementById('select_apart_down').style.visibility='hidden';
 }