function bookmark(url, title) {
	var url = url || location.protocol + '//' + location.host;
	var title = title || location.host;
	// Internet Explorer
	if(document.all) {
		window.external.AddFavorite(url, title);
	}
	// Firefox
	else if(window.sidebar) {
		window.sidebar.addPanel(title, url, '');
	}
}