It's not live; can you refer to the parent theme demo that I posted?
My child theme is broken as described above, and I'm actively working on it (the problem above as well as other ongoing updates), so the demo I posted above is much more simple to understand and it's stable so that would be better to work with, wouldn't it? (Also the content in my Wordpress site contains NDA-protected data that I'm not permitted to post publicly).
Did you remove the old navigation JS code (example: http://organicthemes.com/demo/showcase/wp-content/themes/organic_showcase/js/navigation.js)?
Have you checked the console after clicking on the toggle?
I'll be available in 6-7hrs.
Yes I check Console, although there's a lot going on there I'm not sure about. My default tool for console and inspecting elements is Firebug though sometimes I switch over to Chrome's event listeners.