How to reimplement the handleUnload javascript method ?

Hi all,
we are facing an issue here with a generated BPS application(using BPS_WB) which is integrated in another BSP application (cProjects). In fact, often, users are clicking on another tab in cProjects, and they are losing the data they were creating in the BPS application.
They want to have a popup window that tell them that data will be lost, and have somehow the choice to cancel or save the data.
I managed to make this work by redefining the handleUnload() javascript method which is generated in the page when doing the customizing in BPS_WB transaction (i went in the generated BSP application in SE80 to do this).
But the problem is that each time they will change something in BPS_WB, my changes are lost ! So what is the recommandation to avoid this problem ?
Thank you in advance,
Xavier

hi Xavier
I'm afraid I don't know how to avoid this.
I just want to know what javascript you have written to manage the popup window?
Thank you!
Best Regards,
delma

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