error message on http://techdocs.postgresql.org/ during redirect

If I click on a link while on the http://techdocs.postgresql.org/ site, for
example, under "Quick Reference Material", "PostgreSQL Notes", I briefly
see an error message that says: "Notice: Use of undefined constant userid
- assumed 'userid' in
/usr/local/www/techdocs.postgresql.org/technotes/redir.php on line 13".

The redirect appears to take place, and the document eventually appears,
but I think the message should be made to go away. I'm not sure who is in
charge of this, but I hope that someone on this list will see this, and be
able to fix it, or tell someone who can.

Susan

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