function bookmark(title, url) {

  if (!title) title = document.title; 
  
  if (!url) url = document.location.href;
  
  if (window.sidebar) { // Mozilla Firefox Bookmark
	  window.sidebar.addPanel(title, url,"");
  } else if( window.external ) { // IE Favorite
	  window.external.AddFavorite( url, title); 
 	} else if(window.opera && window.print) { // Opera Hotlist
  	return true; 
  }
}