public function cancelShowAction()
{
$userInfo = Zend_Auth::getInstance()->getStorage()->read();
$user = new User($userInfo->id);
if ($user->isUserType(array(UTYPE_ADMIN, UTYPE_PROGRAM_MANAGER))) {
$showInstanceId = $this->_getParam('id');
$showInstance = new ShowInstance($showInstanceId);
$show = new Show($showInstance->getShowId());
$show->cancelShow($showInstance->getShowStart());
}
}