title: DOM Exception: HIERARCHY_REQUEST_ERR (3) error
body: <p>The following code works fine in chrome and Firefox, but breaks in IE 9.0.</p>
  
  <blockquote>
    <p><code>message.nodeTree.childNodes[1].childNodes[0].childNodes[0].appendChild(pkf_util.createXmlTextNode(text));</code></p>
  </blockquote>
  
  <p>when I try to input something via textarea,it comes with SCRIPT5022:</p>
  
  <blockquote>
    <p>DOM Exception: HIERARCHY_REQUEST_ERR (3) line 481 character 29;</p>
  </blockquote>
  
  <p>Any ideas why it's not working in IE 9.0?</p>