using TBNav

gistfile1.html

<div class="navbar">
  <div class="navbar-inner">
    <div class="container">
      <a class="brand" href="/">My App</a>
        <!-- create the 'main' menu items -->
	<span data-lift="lift:TBNav.menuToTBNav?eager_eval=true"> 
	  <span data-lift="lift:Menu.builder?top:class=nav;li_item:class=active;linkToSelf=true;expandAll=true;group=main"></span>
	</span>
        <!-- create the 'user' (e.g. login/logout etc) menu items -->
	<span data-lift="lift:TBNav.menuToTBNav?eager_eval=true"> 
	  <span data-lift="lift:Menu.builder?top:class=nav pull-right;li_item:class=active;linkToSelf=true;expandAll=true;group=user"></span>
	</span>
    </div>
  </div>
</div>