cookie_igpassword.setPath("/");
cookie_igpassword.setMaxAge(0);
getResponse().addCookie(cookie_igpassword);
AuthenticationModule authenticationModule = AuthenticationModule.getAuthenticationModule(null, null, getRequest(), false);
boolean redirected = authenticationModule.logoutUser(getRequest(), getResponse());
if(redirected)
return NONE;
else
return "logout";