FCKEditor: how can I customize my toolbar buttons for certain user roles?

Hi folks,

I use the FCKEditor in my Drupal 6 Installation and I wonder how I can
customize my toolbar for certain user roles?
For instance: the admin can do "everything" but, the regular authenticated
user shall just make text "bold", "italic" and put a link - that's it.

So I tried to configure the advanced options of the FCK profile called "Default"
and put some configuration settings in the field called "Custom javascript configuration: "
like:
"LinkDlgHideTarget = true;
LinkDlgHideAdvanced = true;"

But it makes no difference. Maybe there is a error in my thinking.

Is there someone who could give me a hint what to do?

Thanks alot!

Bests,
Soezkan