w a syntax error, so simply delete the trailing comma and the vocabulary list will be updated.
        </p>
      </div>
      
      <div id="exercise" class="content-block" style="display:none;">
        <div id="quiz-result"></div>
        <div id="quiz-zone" class="clear"></div>
        <div id="quiz-timer" class="center"></div>
      </div>
    </div>
    
    <footer class="clear">
      <ul class="footer-left">
        <li><a href="../../../" id="footer-home">Home</a></li>
        <li><a href="../../