public String doButton1Action() {
	try {
		String ssn = (String)getSessionScope().get("SSN");
		System.out.println("Logon " + ssn);
		CustomerManager customerManager = (CustomerManager)getManagedBean("customerManager");
		Customer customer = customerManager.findCustomerBySsn(ssn);
		if (customer == null) throw new Exception("Customer not found");
		return "login";
	} catch (Exception e) {
		System.out.println("Login exception: " + e.getMessage());
		getFacesContext().addMessage("ssn1", new FacesMessage("Customer record not found.") );
		return "failed";
	}
}