Customize confirmation page

Good afternoon!
Recently, I made an anonymous report area in my forum so that members can send reports that can only be seen by the staff. It's not perfect (since we have to add manually the member to an occult group if we need more information), but it's quite good. It works xD
I wanted to know if it's possible to customize the confirmation page of that sub-forum so it can show something like "your report will be investigated by the staff. Thank you for your time" (instead of the usual "your message has been sent") using javascript or something along those lines.
Thank you!

No sorry that can not be done as the code would lost on all the forums included in the ones you don't want it to show.

APE wrote:No sorry that can not be done as the code would lost on all the forums included in the ones you don't want it to show.

So nothing can be done for the same effect? Like a pop-up or redirecting to a specific page with the text after posting in that specific area.