[Tobago] Popup not closed after PDF download

[Helmut Swaczinna]

Hi,

I want to build a small print dialog where the user can choose some options 
before printing to a PDF file.
So I build a popup and the action of the ok button generates the PDF file 
and returns it's contents as the
response of the request. This works, but the popup is never closed, waiting 
for ever for the response of
the action. How do I close the popup explicitly when there's no response 
from the server?

Regards
Helmut