function add_favorite(linkObj, addUrl, addTitle) {
  if(document.all && !window.opera) {
    window.external.AddFavorite(addUrl, addTitle);
    return false;

  } else if(window.opera && window.print) {
    linkObj.title = addTitle;
    return true;

  } else if((typeof window.sidebar=='object') && (typeof window.sidebar.addPanel=='function')) { //Mozilla
    if(window.confirm('Add to favorites?')) {
      window.sidebar.addPanel(addTitle, addUrl, '');
      return false;
    }
  }
  window.alert('Press CTRL+D');
  return false;
}