anchor.diff:            </ul>
           </li>
           <li><a class="navbar-brand" href="/pages/contactus">Contact us</a></li>
  +        <ul><li><a class="navbar-brand" href="/extras">Extras</a></li>
  +         <li>
  +          <a class="navbar-brand" href="/extracats">Extra Types</a>
  +          <ul>
  +           <li><a class="navbar-brand" href="/extracats">View Extra Types</a></li>
  +           <li><a class="navbar-brand" href="/extracats/new">New Extra Type</a></li>
  +          </ul>
           <li>
           Account
           <ul>
  
positive.code:           <a class="navbar-brand" href="/rooms">Rooms</a>
          </li>
          <li><a class="navbar-brand" href="/pages/contactus">Contact us</a></li>
          <li>
          Account
          <ul>
  
negative.code:     <!-- if a customer is signed in display navbar with sufficient privilidges -->
      <% if current_user.customer? %>
        <ul><li><a class="navbar-brand" href="/pages/home">Home</a></li>
          <li><a class="navbar-brand" href="/extras">Extras</a></li>
          <li>
            <a class="navbar-brand" href="/rooms">Rooms</a>
          </li>
  