function konyvjelzo() {
var title = document.title;
var url = document.URL;
if(window.sidebar) window.sidebar.addPanel(title, url, '');
else if(window.opera && window.print) {
var mbm = document.createElement('a');
mbm.setAttribute('rel', 'sidebar');
mbm.setAttribute('href', url);
mbm.setAttribute('title', title);
mbm.click();
}
else if(document.all) window.external.AddFavorite(url, title);
}

function AddToFavorites(obj, title, url){
  if(window.sidebar){
    // Mozilla Firefox Bookmark
    window.sidebar.addPanel(title, url,"");
    return false;
  } else if(window.external){
    // IE Favorite
    window.external.AddFavorite( url, title);
    return false;
  } else if(window.opera && window.print){
    //Opera Hotlist
    obj.setAttribute('href',url);
    obj.setAttribute('title',title);
    obj.setAttribute('rel','sidebar');
    obj.click();
    return false;
  }
}