<script>
  
// el ID debe ir en la seccion, seccion debe tener
// un scroll effect sticky top 
  jQuery(function ($) {
    var topPosition = 0;
    $(window).scroll(function () {
      var scrollMovement = $(window).scrollTop();
      if (topPosition < 200) {
      }
      else {
        if (scrollMovement > topPosition) {
          $('#ui-banner').removeClass('ui-mostrar');
          $('#ui-banner').addClass('ui-ocultar');
          } else {
            $('#ui-banner').removeClass('ui-ocultar');
            $('#ui-banner').addClass('ui-mostrar');
          }
          }
          topPosition = scrollMovement;
          });
          
    });
  </script>