Simple jQuery Toggle Javascript snippet

html

<a href="#" id="toggleButton">Click Here</a>
<div id="toggleSection">      
  <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.</p>
</div>
<script type="text/javascript" src="http://code.jquery.com/jquery-latest.pack.js"></script>
<script type="text/javascript" src="js/toggle.js"></script>

toggle.js

$(document).ready(function() {
          $('.toggleButton').click(function() {
               if ($('.toggleSection').is(":hidden"))
               {
                    $('.toggleSection').slideDown("slow");
               } else {
                    $('.toggleSection').slideUp("slow");
               }
               return false;
          });
     });

In the html you're giving them IDs; In JS you're calling Classes