public function init()
{
parent::init();
// initialize form
$this->setName('editUserForm')->setAction('/auth/user/edit')->setMethod('post');
$password = $this->getElement('password');
$password->setRequired(false);
$id = new Zend_Form_Element_Hidden('id');
$id->addValidator('Int')->addFilter('StringTrim');
$this->addElement($id);
}
