function _isMembershipEnabledFor($sMembershipActionConstant)
{
defineMembershipActions(array('photos add', 'sounds add', 'videos add', 'files add'));
if (!defined($sMembershipActionConstant)) {
return false;
}
$aCheck = checkAction(getLoggedId(), constant($sMembershipActionConstant));
return $aCheck[CHECK_ACTION_RESULT] == CHECK_ACTION_RESULT_ALLOWED;
}