public function deleteAction()
{
if ($id = $this->getRequest()->getParam('message_id')) {
$message = new Push_Model_Message();
$message->find($id);
$message->delete();
$data = array('success' => 1, 'success_message' => $this->_('Push successfully deleted.'), 'message_loader' => 0, 'message_button' => 0, 'message_timeout' => 2);
} else {
$datas = array('error' => 1, 'message' => $this->_('An error occurred while deleting the push. Please try again later.'));
}
$this->getLayout()->setHtml(Zend_Json::encode($data));
}