function addFavourite() {
  var BookmarkURL="http://www.ekby.gr"
  var BookmarkTitle="Greek Biotope - Wetland Centre (EKBY)"
  // If the browser is Internet Explorer
  if (document.all)
  {
   // Add to Favorites (Internet Explorer)
   window.external.AddFavorite(BookmarkURL,BookmarkTitle)
  }
  else
  {
   // Add to Bookmarks (Mozilla Firefox)
   window.sidebar.addPanel(BookmarkTitle, BookmarkURL, '');
  }
}