[SOLVED] Plug-in, CSS or PHP Code for Expanding Definition List in Atahualpa ?

I'm looking for an Atahualpa-compatible way to build an Expanding Definition List (<dl>) where the definitions (<dd>my definition</dd>) are hidden until the user clicks on the term (<dt>my term</td>). Clicking on the expanded definition should make it disappear.

<dl>
<dt> Dictionary Term (Click on this to make the definition appear)</dt>
<dd> Definition text .... blah, blah, blah.
blah, blah, blah, blah. (Click on this to make the definition disappear).</dd>
</dl>

Does anyone know an easy way to do this? I need to do this on Pages and Admin Posts, not in a widget.