title: Access an element by class using jQuery
body: <p>I have a table with an ID of <code>InstrumentListGrid</code>.  When a row is selected, it sets the class to <code>ui-iggrid-activerow</code>. I want to add a jQuery event on that row for when someone clicks it.</p>
  
  <p>So far I have</p>
  
  <pre><code>$("#InstrumentListGrid tr.ui-iggrid-activerow").click(function (event) {
      alert("YAY!");
  });
  </code></pre>
  
  <p>but that isn't firing.  How do I bind to an element by class?</p>