well if you put it directly after in global.php it would work.

]Ok it works now :) One last question, what's the code for a user to logout ? I want to insert it in my template. Thx for your help :)

Edit: I have tried the "action logout" but it doesn't work. It just sits there without login out. I would like to logout and clear the cookies.

hmm, you can do it with a javascript redirect to call the logoutpage :)