function bookmark(url, title, url_type, pagetitle_type)
{
	if (url == "" || url_type=="detect")
	{
		url = location.href;
	}	
	if (title == "" || pagetitle_type=="detect")
	{
		title = document.title;	
	}
	
  if (window.sidebar) {
    window.sidebar.addPanel(title, url,"");
  } else if( document.all ) {
    window.external.AddFavorite(url, title);
  } else if( window.opera && window.print ) {
    return true;
  }
}