Custom href attribute value encoding problem

Hello,

I'm developing a web app that allow users to create messages with custom tags, edited with ckeditor. Now I'm stuck with an encoding problem in the href attribute of an "a" tag.

When I write in html source mode the link below, every thing is ok.

<a href="*{UPDATE}*">update your profile</a>

But if I do copy & paste in editor mode, when switch back to html source mode, the link is modified and encoded. The {UPDATE}* string was encoded as an URI and the URL to current file/page was added.

<a href="http://mydomain/message/edit/*%7CUPDATE%7C*">update your profile</a>

Does any body has a clue on it?

Thanks in advance

Jorge