title: How to change value of extJS textfield component inside extJS panel?
body: <p>I'm here with so easy question, but couldn't find it... anyway, below you can see the code. This is panel with items inside it.
  What i want is to change value of textfield with name 'intIP', it's inside panel, which is inside panel.
  How can i do that? I found info about forms (.getForm method, but panel doesn't have such)</p>
  
  <p>Thanks a lot in advance                    </p>
  
  <p><a href="http://jobtask.h19.ru/" rel="nofollow">http://jobtask.h19.ru/</a> - panel</p>
  
  <pre><code>var resultsPanel = Ext.create('Ext.panel.Panel', {
      title: title,
      renderTo: document.body,
      layout: {
          type: 'vbox',
          align: 'stretch',
      },
      items: [{
          title: 'Details',
          name: 'detPanel',
          items: [{
              name: 'intIP',
              fieldLabel: 'internal IP',
              xtype: 'textfield',
              readOnly: true
          }],
      }]
  });
  </code></pre>