title: ExtJS 4 or 4.1 MessageBox Custom Buttons
body: <pre><code>Ext.MessageBox.show({
      title:'Messagebox Title',
      msg: 'Are you sure want to delete?',
      buttons: {yes: "Some Button 1",no: "Some Button 2",cancel: "Some Button 3"}
  });
  </code></pre>
  
  <p>ExtJS 4 or 4.1 does not support this code. Buttons do not show.</p>