add ico to fckeditor

Add an icon to fck editor

My fck is running ok, but I need some custom stuff.

I want to add an icon to fckeditor and when one user click in the button, I want to add to the boy editor some text like:

<div class="customQuote"><p>&nbsp;</p><p>&nbsp;</p><p>&nbsp;</p></div>

I think this is simple but i don't know where can I do this!

Thanks!