Executing ABAP on Navigating away from BSP

Hi All,
I would like to know if it's possible to execute a piece of ABAP code when the user navigates away from a BSP page.
I have the necessary ABAP clean-up code that I need to execute if the user decides to quit the BSP page (that includes closing the browser window, going to another website like cnn.com, or hitting the "Back" button).
Can anyone think of a possible solution? I tried to use javascript function on page "unload" property, but it appears it is not possible to restrict ABAP statements by enclosing them in javascript tags.
Thanks in advance!
Roman D.

Hi Thomas,
Thanks for the quick response. No, the application is stateless.
Due to the programming design, the person who developed the application created a certain document on the "OnInitialization" routine. What I need is to delete that document unless the user hits the Save button...sounds absurd, but it's more of a workaround than a real solution.
So, in other words, if the user enters the page and hits "Save", everything is OK. But if the user doesn't hit "Save", but instead just quits the BSP application, I need to make sure that the document is deleted.
Is this problem more clearer now? Let me know if I can provide more details.
Thanks!
Roman D.

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