simple_sort.js

$(document).ready(function(){
  $('#books').sortable({
    update: function(){
      $.ajax({
        type: 'post',
        data: $('#books').sortable('serialize'),
        dataType: 'script',
        complete: function(request){
          $('#books').effect('highlight');
        },
        url: '/books/sort'
      });
    }
  });
});