IE in IE:
Effective window
1. Thesession object is only valid in the window that establishes the Session object.
2. Newly open links in the window to establish a session object
Invalid window
1. Launch the window of the IE browser directly
2. Not a newly opened window in the window of establishing the Session object
Netscape:
As long as one window has a session object, all windows are valid for this session.
