title: JQuery Mobile navigation .. is the left nav really not collapsible?
body: <p>just a quick question to see if anyone has pondered this one... </p>
  
  <p>if you go to <a href="http://jquerymobile.com/test/docs/lists/lists-collapsible.html" rel="nofollow">http://jquerymobile.com/test/docs/lists/lists-collapsible.html</a> and look at the collapsible navigation (scroll to the last example, at the bottom aka "content-primary") it looks lovely.. but it doesn't seem possible to implement this "mechanic" of sub menus within the left-nav when declared as "content-secondary"</p>
  
  <p>so my question is.. why not? Surely there must be a way?</p>