custom file browser function as a setting

[ufku]

Currently fckeditor allows custom file browser(f.b.) depending on the setting "(Image|File..)BrowserURL". This does not allow us to control how the custom f.b. shows up. It always opens as a pop-up window. What if one wants to use a f.b. that uses a floating div instead of a pop-up. or what if one wants to respond to the opening of the f.b. window.

In tinymce there is the "file_browser_callback" setting that is used to specify the function running when f.b. button is clicked. This allows a complete customization on how f.b. opens and functions. It would be really useful to implement a similar thing and overwrite the default f.b. opening function.

thanks.