title: Accessing XML elements in an ExtJS Store that are located outside of the defined records
body: <p>In ExtJS 4, I have an XML Store that is defined as follows:</p>
  
  <pre><code>Ext.define('AC.store.GameWins',
  {
      extend : 'Ext.data.Store',
      model : 'AC.model.GameWins',
      autoLoad : true,
  
      proxy :
     {
          type : 'ajax',
          api :
          {
              read : 'data/gamewins.xml'
          },
          reader :
          {
              type : 'xml',
              root : 'GameWins',
              record : 'Game',
              successProperty : 'success'
          }
      }
  });
  </code></pre>
  
  <p>and an XML file that looks like this:</p>
  
  <pre><code>&lt;GameWins&gt;  
      &lt;LastUpdated&gt;2013-01-30 10:18:34&lt;/LastUpdated&gt;
      &lt;Game ID="1" Name="GameName"&gt;
          &lt;WinDate&gt;...&lt;/WinDate&gt;
          &lt;WinAmount&gt;...&lt;/WinAmount&gt;
      &lt;/Game&gt;
      &lt;Game ID="1" Name="GameName"&gt;
          &lt;WinDate&gt;...&lt;/WinDate&gt;
          &lt;WinAmount&gt;...&lt;/WinAmount&gt;
      &lt;/Game&gt;
  &lt;/GameWins&gt;
  </code></pre>
  
  <p>It is easy enough to access the Game elements in a dataview using an XTemplate.</p>
  
  <p>However, I have a problem accessing LastUpdated.. This is not part of the "record" that is defined in the Store. How can I access this element?</p>