title: Yii: include form inside form
body: <p>There's a way to include form inside another form using the same action?
  I tried with renderPartial but doesn't work.
  eg:</p>
  
  <blockquote>
    <p>$this->renderPartial('//utente/_form', array('model'=>new User,
    'condition'=>$condition, 'form' => $form, 'rule' => '3'), false,
    true);</p>
  </blockquote>