Smart Scroll Menu
This module takes standard Joomla menus and turns them into vertical accordion menus.
Ability to handle any number of levels
Select either “click” or “hover” event
State saving using cookies
Set sub-menus to auto-expand on page load based on CSS class
Allow all sub-menus to be expanded or auto-close open sub-menus
Disable parent links
Add count of number of child links
Note! This module needs jQuery to work.