Portal session still exist in child window after logout main window
here's a short summary about our business scenario:
We use performance management (SAP HCM) within our SAP ERP 6.0 and SAP NW Portal 7.0.
With the application performance management we use some bsp- and webdynpro-iviews from the business package MSS.
Some of these applications opens a second portal window (child windows) for doing the work.
If the user logoff only the main portal windows with the "logout"-link and also close this window (e.g. he forgot to close the child windows) the user have the possibility to make changes (e.g. in the opened performance management document) in the child window.
This behavior isn't allowed according our company principles. If the user logout on any portal window (also at creating of new portal sessions with STRG+N) all the sessions of the user should be terminated.
Which possibilites do I have to solve this problem?
Thanks for your help!