Is it possible to access the items in the left navigation pane through a zimlet?

For example I would like to access the various list items/buttons such as 'inbox', 'sent', etc.

Using their IDs is obviously not ideal because of the generated/app-like nature of the web-client.

Is it possible to easily access these through the javascript api? Primarily I am interested in attaching additional events to them for custom functionality.

Thanks!