Display error messages to the user using a Bootstrap modal

alert_modal.html

<div id="alert-modal" class="modal fade">
  <div class="modal-dialog">
    <div class="modal-content">
      <div class="modal-header">
        <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
        <h4 id="alert-modal-title" class="modal-title"></h4>
      </div>
      <div id="alert-modal-body" class="modal-body"></div>
      <div class="modal-footer">
        <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
      </div>
    </div>
  </div>
</div>

alertModal.js

function alertModal(title, body) {
  // Display error message to the user in a modal
  $('#alert-modal-title').html(title);
  $('#alert-modal-body').html(body);
  $('#alert-modal').modal('show');
}