How can I post an image from the editor?

[apokphp]

Here's what I'm trying to accomplish...

On the WYSIWYG editor, I'd like to be able to select a graphic button that pastes (or puts, however it should be worded) a specific .gif into the post whenever the member clicks that button.

For instance...this is my graphic button in the editor...

This is what I want it to display whenever someone selects the button...

The purpose of this graphic, is for a member to highlight a challenge of another member, to support their unsupported argument/claim (I run a debate site: www.onlinedebate.net).

So instead of someone having to say "Please support the claim" (which happens quite a bit), and possibly it getting overlooked or easily ignored...a graphic representation would highlight the challenge.

I've created a BB Code for it, but because it's a BB Code, the poster has to put some sort of text between the [challenge] tags. Rather a nuisance. It's a clumsy way to get the job done, I'm looking for the right way.

How can I have a graphic displayed in the post, by clicking on a button in the editor?

bumpage.