var nm=navigator.appName;
NS=((nm.indexOf("Netscape")>-1||nm.indexOf("Netscape")>-1)?1:0);
var IE4 = (document.all);

function addfavorite(){
	if (IE4) {window.external.AddFavorite(location.href, document.title);}
	if (NS) { alert("For Netscape, Firefox, AOL and Mozilla users, please press Ctrl+D to add this page to your bookmarks.");	}
}