Control the confirmation event, to close the modal only when it succeeds

[lvitals]

Hi,
How can I control the confirmation event, to close the modal only when it succeeds?
Do not have any option to set the backdrop and keyboard?

ex.
$('#myModal').modal({backdrop: 'static', keyboard: false})

I noticed that every time he makes a confirmation executed

  modal.find('.commit').on('click', function () {
    if (options.onConfirm && options.onConfirm.call)
      options.onConfirm.call();

    modal.modal('hide');
  });