protected function _prepareForm()
 {
     //@todo fix the form
     $form = '';
     //new Varien_Data_Form(array('id' => 'edit_form', 'action' => $this->getUrl('adminhtml/email_rules/save'), 'method' => 'post'));
     $form->setUseContainer(true);
     $this->setForm($form);
     return parent::_prepareForm();
 }