[fw-general] Zend_Navigation question?

[info]

Hi, i am using zend-navigation to render my menu but the html template  
i am using has a span inside a like this:

<ul>
  <li>
     <a href="#" class="active">
        <span>Home</span>
     </a>
  </li>
  <li>
     <a href="#">
        <span>Contact</span>
     </a>
  </li>

   .
   .

</ul>


Is possible generate this html with Zend_Navigation?