When I click the Refresh Forum button, nothing happens. If I leave the forum page then come back, it reloads the changes.

Suspicious, I found this when viewing page source:
...
<input type="hidden" name="userid" value="66" />
<input type="hidden" name="parent" value="0" />
<input type="hidden" name="reference" value="0" />
<input type="hidden" name="task" value="savePost" />
<input type="hidden" name="option" value="com_rapidforum" />
<input type="hidden" name="Itemid" value="112" />
</form>

<span class="buttons"><input type="Button" value="Refresh Forum" /></span>


</div>
<div id="board">
<div class="pagination"> </div>
<ul class="rf_root_tree"><li> <div class="category">General</div>
...

There doesn't appear to be any action or event specified when button is clicked.

Please advise.
Thank you.