public void contextInitialized(ServletContextEvent arg0)  { 
    	DBConnection connection = new DBConnection();
    	AccountManager manager = new AccountManager(connection);
    	QuizIndex index = new QuizIndex(connection);
        ServletContext context = arg0.getServletContext();
        context.setAttribute("manager", manager);
        context.setAttribute("index", index);
        context.setAttribute("connection", connection);
        context.setAttribute("statement", connection.getStatement());
    }