title: HTML option tag for dropdown selection
body: <p>I need to be able to store and retrieve an additional ID when creating a dropdown list box.  Currently my option values are -</p>
  
  <pre><code>&lt;option value="@x.Id" description="@x.Description" selected="selected"&gt;@x.PromotionCode&lt;/option&gt;
  </code></pre>
  
  <p>and then I am able to retrieve the value using -</p>
  
  <pre><code>    $("#discount-selection").change(function () {
          alert ($(this).val())
      });
  </code></pre>
  
  <p>What other element in the option tag can I use and how do I retrieve it?</p>