posted 16 years ago
There are many ways a session may get duplicated from one window to the next, or, potentially shared.
If each browser window is configured to create its own set of cookies, each window will have a unique session. Alternatively, if each window shares a cookie cache, both windows will share a common session. This of course, assumes you are using cookies for your session tracking. You could potentially be using URL re-writing as well.
-Cameron McKenzie