How to use two sessions for one user ?

[eluser]Unknown[/eluser]
I am using the cart class for a shoping cart.

Now I want to use the Simplelogin library, but the cart session is erased when I login.

How can this be solved ?

It is possible to use two sessions for one user ?

Or maybe merge all in the same session ?

Help :ahhh:

[eluser]Unknown[/eluser]
I just realized that when I Login the session was deleted, and a new session was created. I just commented that two lines.