Date - 2011-02-01
A multi-level vertical concertina menu that uses a simple set of nested unordered lists with just a top level classname.
CSS3 enhancements have been added to make the menu more visually appealing.
You can either have the menu overlap the content beneath or push it down by adding/removing the 'position:absolute;' from the top level style.
The menu will auto-close any open sub menus after a preset time if the mouse is moved off the mmenu.
Tested in IE6, IE7, IE8, IE9, Firefox, Opera, Safari and Chrome.