title: ExtJS3: Cannot read property 'parentNode' of undefined
body: <p>If we are closing a <code>tabPanel</code> using <code>closable: true</code>, the default action will be destroying the tabPanel. And so, since the tabPanel is destroyed we wont be able to display the tabPanel again. But, I do not want the tabPanel to be destroyed, it has to be hidden so I tried this</p>
  
  <pre><code>    this.Manage = new Ext.TabPanel({
               title: 'Manage',
               closable: true,
               closeAction: 'hide',
               activeTab: 0,
               items:[
                  this.manageGridPanel
  
                  ]
      });
  </code></pre>
  
  <p>What happens with this is, I am able to display the  tabPanel but the child elements within that are not being displayed. And I am getting following exception in js console <code>Uncaught TypeError: Cannot read property 'parentNode' of undefined</code> Also because of this, I am not able to navigate to other tabpanels from my treepanel, I am getting the following exception in js console <code>Uncaught TypeError: Cannot read property 'className' of undefined</code> .</p>
  
  <p>Can someone tel me How do I resolve this?</p>