function addFavourite(obj, url, title) {

  if (!url) url = location.href;
  if (!title) title = document.title;

  // FF
  if (window.sidebar) {
    window.sidebar.addPanel(title, url, '');
  }
  // Opera
  // MSIE
  else if (window.external) {
    try {
      window.external.AddFavorite(url,name);
    }
    catch(e) {
      alert ("Aby dodać stronę do ulubionych wciśnij CTRL+D");
    }
  }
}