How to get a value from a JSON hash
<p>In a jquery ajax call I get sent back some JSON from the server and want to use some of it in the success callback.  I pass in the data, but how do I get at a specific value (say "id")?</p>

<p>I tried this but I get undefined:</p>

<pre><code>                      success   : function(data) {
                                    alert(data["id"]);
                                  },
</code></pre>
