// Add following in Javascript section.
	function addCkEditor(id)
	{
		if(CKEDITOR.instances[id])
		{
		CKEDITOR.remove(CKEDITOR.instances[id]);
		}
		CKEDITOR.replace(id);
	}

// Use following function
public function addCkEditor()
{
  $this->Editor->addJavascript('addCkEditor("'.$this->mateInstances[0].'notes");');
}

// define, when to use this CKEditor.
$this->Editor->setConfig('addScreenFun',array(&$this,'addCkEditor'));
$this->Editor->setConfig('editScreenFun',array(&$this,'addCkEditor'));