Firstly, I apologise for replying to a post, I can't seem to find a "new topic" button (It must be my age :-)

I have added a file manager window, that allows my users to select an image nicely. Once the user has selected an image, I would like to be able to "enter it" into the "f_st_backgroundImage" field in the Table Properties popup window.

I have tried using opener.document, but the opener is the main window, so both the Table Properties Popup, and my Image Browser are sibling windows. How do I find the name/id of the Table Properties Popup, so that I can use JS in my Image Browser window, to set the value of the f_st_backgroundImage field?

Many thanks,
Marc