<div id="modalmantenimiento" class="modal fade" role="dialog">
  <div class="modal-dialog modal-lg">
    <form id="formulario">
      <div class="modal-content">
        <div class="modal-header">
          <h4 class="modal-title">Profesiones</h4>
        </div>
        <div class="modal-body">
          <input type="hidden" id="id_prof" name="id_prof">
          <div class="form-group">
            <label>Prefesion</label>
            <input type="text" class="form-control" name="nombre_prof" id="nombre_prof" required autocomplete="off">
          </div>
          
        </div>
        <div class="modal-footer">
          <button type="submit" class="btn btn-primary">Guardar</button>
          <button type="button" class="btn btn-secondary" data-dismiss="modal">Cerrar</button>
        </div>
      </div>
    </form>
  </div>
</div>