I would like to create a image and text menu in Sliverstripe as shown here:

I was thinking to have jquery select an individual ID and replace the background image. How ever Silverstripe gives me the menu as you see below. How can I go about setting up this menu?
Output
<ul>
<li class="current">
<a title="video" href="/cfl/index.php/">Home</a>
</li>
<li class="link">
<a title="alarm" href="/cfl/index.php/about-us/">About Us</a>
</li>
<li class="link">
<a title="auto" href="/cfl/index.php/contact-us/">Contact Us</a>
</li>
</ul>
Template File
<nav class="primary">
<span class="nav-open-button">²</span>
<ul>
<% loop $Menu(1) %>
<li class="$LinkingMode"><a href="$Link" title="$Title.XML">$MenuTitle.XML</a></li>
<% end_loop %>
</ul>
</nav>
Thanks.