-1
Returned if a session exceeds its idle time.
-2
Returned if a session has expired.
-3
Returned if the Auth Container in use is unable to validate the username/password pair supplied.
-4
Returned if the requested function is not implemented by the Auth Container in use.
-5
Returned if the advanced security checking detects a breach.
-6
Returned if the checkAuth callback function aborted the session.