Portal External Service - BSP

Hi,

We have developed BSP applications in WAS6.2 and deployed the applications in EP5.0 . In the second navigation bar we have menu options to access BSPs (which were created as external services) . I click on first menu to work on the first application enter data save it and go to the second menu to access another application and work with that, when I come back to the first menu option still I see the previous data which I entered, it's not showing the first screen of that application.

Note:

In BSP applications we have implemented session.htm as the entry point which inturn calls the contoller of that application so that while leaving the application session.htm triggers the ONunload event to close the session.

Any help.....

thanks

Suresh