Welcome to Open Discussion
I liked the language dropdown box on www.tecnick.com (I have been trying to make this work for some time), but I did not like the url "clutter".
After playing around with it for a while, I think I have come up with a solution that is perhaps usable for AIOCP.
You can see my solution in action on http://www.lilyregister.com/s1.htm (for the next few days).
I am basically using an intermediate php file to set a session variable, and then reloading the page with the new session value.
If interested in the code, contact me via http://www.lilyregister.com/
Thank you for your suggestion.
Please post your patch on "Patches" section of this site or send me an email with your changes.