How change top navigation menu from ol to ul?

Question

I'm using Magento 1.9.2.4 and this is generating the menu as follow:

<ol class="nav-primary">
  <li  class="level0 nav-1 first level-top">
   <a href="">Item 1</a>
  </li>
</ol>

I need to change the root element of nav from (ordered list) to (unordered list). I checked the app/code/core/Mage/catalog/Block/Navigation.php but did not find anything.

Thank you!

Answer 1

app/code/design/frontend/namesapce/theme/template/page/html/topmenu.phtml

you can change here <ol> to <ul>. Only these <li></li> element are generate from app/code/core/Mage/catalog/Block/Navigation.php

<?php if($_menu): ?>
    <nav id="nav">
        <ol class="nav-primary">
            <?php echo $_menu ?>
        </ol>
    </nav>
<?php endif ?>