I am not sure the proper way to do this, and I hope someone can assist me formalizing and sending this patch to the patches list, or to a maintainer directly --

Since Koha relies already on YUI, why not switching from TinyMCE to YUI text editor?

http://developer.yahoo.com/yui/editor/

That would be too logical! I will resubmit with YUI instead of TinyMCE.

Stan