How to control the session in multi-window (ctrl+N)

[Rafael Leonhardt]

Hi,

How can I differ the objects in the session when the user open many windows
with ctrl+N?
I need to have different session to this next window, because I have some
info that change when the user navigate on browser, then when the "browser
2" save some info in the session the info of "browser 1" was lost.

Example:

1) In Browser 1, Session["MyInfo"] = "info1111";
2) User press ctrl+N
3) In browser 2 Session["MyInfo"] = "info2222";
4) In browser 1 was "info2222" in the session, because is the same session;
5) So, I need to identify that is "browser 2" to save another local, or to
set another sessionID.

Can anybody help me? Are there any idea?

Rafael L.

PS: Sorry my English, i´m learning.