Question about CI_Session

[eluser]korpirkor[/eluser]
OK, I picked wrong words.
I wanted to achieve, that one username can be logged in only one session.
For example:
- User is logged in with username: bogdan on Session 1.
- After that, he is going to another room, login as bogdan again in another pc
- Now Session 1 is killed, and bogdan is loged out on first computer. But logged in on second.
It's clear now ?

I get everything now, thanks for info

ps. English is not my first language, sometimes there are mistakes in communication with me :-P