I'm currently building a site and have used Metta Fizzy's

Hi, I'm currently building a site and have used Metta Fizzy's Isotope Jquery to filter some posts. I need to be able to show the filters in a 'select menu' (dropdown) rather than as a list. I have the following code:

<ul id="filters">
    <li><a href="#" data-filter="*" class="selected">Everything</a></li>
    <?php
      $terms = get_terms("category"); // get all categories, but you can use any taxonomy
      $count = count($terms); //How many are they?
      if ( $count > 0 ){  //If there are more than 0 terms
        foreach ( $terms as $term ) {  //for each term:
          echo "<li><a href='#' data-filter='.".$term->slug."'>" . $term->name . "</a></li>\n";
          //create a list item with the current term slug for sorting, and name for label
        }
      }
    ?>
</ul>

Is there a simple way to turn this menu into a select menu?

Thanks in advance, Joe.