The S5 Accordion menu is demo'd on the right of this page.<br /><br />   

This module is based off the Joomla main menu system module so you can still specify which Joomla menu you want to use with the S5 Accordion menu. The menu is powered off of the Mootools Javascript library but detects to see if the library is already initialized, if so then it doesn't load its own library to stop any conflicts from arising.
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<strong>I like what I see! I want to <a href="http://www.shape5.com/join-now.html" target="_top">JOIN TODAY</a>.</strong></div>