$_PAY_SYSTEM='Pay system';
$_TRANSACTION='Transaction';
$_TEST_MODE='Test mode';
$_ERR_NO_TRANSACTION='Can\'t find  transaction';
$_TRANSACTION_PROCESSING='Transaction processing...';
$_FAILED='Transaction Failed';
$ERR_INVALID_SIGNATURE='Invalid signature';
$ERR_TRANSACTION_DECLINED='Transaction is declined';


