Check user

Hello there,

Im using PostgreSQL 7.2.1 and I have a user who connects remotely to a
database. This connection is almost permanent but sometimes is lost. I want
to know where I can check in Postgres i.e.(log file) that the connection
from the current user is lost so I make a script to inform me the minute
after.

Thank you in advance
Theodore Kalodikis.

MESSAGE CONFIDENTIALITY AND SECURITY NOTICE.
This message or/and its attached files may contain information that are
privileged and classified. In case you received it in error, without you
being the intended recipient, please delete it immediately from your system
and notify the sender. Copying, use or distribution to others of this
message, without the consent of the sender, is against the law.
LYKOS group is not responsible for any data loss or other damage to the
receiver or others, caused by use, delayed, intercepted, corrupted or
virus-infection of this message. The responsibility for the protection of
the system from viruses and for the authentication of this message is
exclusively upon the recipient.
Please visit our web site at http://www.lykos.gr