breaking out of a frame IMP 2.3.7

[Paul Juliano]

Hello,

I'm running the pages of IMP 2.3.7 inside a frame, except for the 
login page, in order to have banner frames at the top of the pages.  
I only know how to break out of the frame when the user logs out by adding a target="_top" at the logout link.  Problems occur when IMP determines
that the session is no longer valid (session timeout or when a user logs
out then clicks on back).  It doesn't break out of the frame and when the
user logs in, there are now two banner frames on top.  What can I do so
that when the session is not valid, it breaks out of the frame and goes
to the login page?



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