My company has 2 websites. Each is a porthole site where a user logs in and a session variable is set to track their rights.

It has recently become necessary that users have the ability to jump from site A to site B, and vice versa, via a link.

My issue is that the session variables are not following the user from one site to the other.

Is it possible to have session variables follow the user from site A to site B, and vice versa? If so, how?
Thank you for your help.
C-

BTW - my current workaround is to pass the variable via a request string. This is fine for the short term but is highly inefficient for the long haul.