(function () {
  'use strict'

  // Fetch all the forms we want to apply custom Bootstrap validation styles to
  var forms = document.querySelectorAll('.needs-validation');

  // Loop over them and prevent submission
  Array.prototype.slice.call(forms)
	.forEach(function (form) {
	  form.addEventListener('submit', function (event) {
		if (!form.checkValidity()) {
		  event.preventDefault();
		  event.stopPropagation();
		}

		form.classList.add('was-validated');
	  }, false);
	});
})();