note 11854 added to ref.session.php

My comment addresses what someone wrote about appending the session id to a URL. One contributor even wrote a JavaScript snippet to do this for every URL on a page. I think the Session class in PHPLIB has two functions that accomplish the same task in a clean way. Namely: url($url): Returns a URL referencing the current session. If in GET mode, the current session id is attached to this URL, else the URL is returned unmodified. purl($url): A shorthand for print $this->url($url); http://www.php.net/manual/en/ref.session.php