[chora] session handling

[David Mendenhall]

Could someone enlighten me on how chora (and I guess horde in general)
manages sessions?
I've set up chora, without using any other horde modules, and have been
hacking around in the code, and it appears that I'm starting a new session
every time I click a link.
If I call session_id(), it's different every time.
I have chora at the root http://chora level, so if the session is passed
around in the horde url's, that's probably my problem.
Any knowledge you can pass my way would be appreciated. I'm not very
familiar with session handling in php.

-david