$(window).ready(function() {
  $('.scrollable-content').height($('.scrollable-content .items').height());
  $('.scrollable-content').scrollable({size:1,clickable:false}).navigator({indexed:true, navi: ".navi-content"});
  if($('.navi-content').children().length == 1) {
    $('.navi-content').css({visibility:"hidden"});
  }
  $('.navi-content').children().each(function(i){
    var elements = $(this).children().children();
    if(elements.length == 1) {
      $(this).children().addClass('one-item');
    }
  });
});