function bookmark(title, url) {
	if ( !title )
		title = document.title;
	if ( !url )
		url = window.location;

        if (window.sidebar) { // firefox
              window.sidebar.addPanel(title, url,"");
        } else if( document.all ) { //MSIE
                window.external.AddFavorite( url, title);
        } else {
               alert("Sorry, your browser doesn't support this");
        }
}