This is not true. session_id is unique for each combination of browser/url.
I believe this too, but you can see:
1. try http://tassadar.physics.auth.gr/~chameleon/Books/
2. right-click in one menu link and "open in new window".
3. in 2nd browser window click greek flag
4. in 1st browser window click "Programming"
everything in 1st browser window are in greeks!!! (we activate greeks only in 2nd browser window)
I try Mozilla & IE6 too.
In the code, I have this for language:
language is changing with GET (eg index.php?lang=english)
if $lang is not set (GET) try SESSION
if $_SESSION['session_lang'] is not set try COOKIE
if $_COOKIE['cookie_lang'] is not set try language for domain (eg gr=greek it=italian fr=francais default=english)
What is error?
thanks