     "balloonText": "<span style='font-size:13px;'>[[title]] in [[category]]:<b>[[value]]</b></span>"
        }],
        "legend": {
          "useGraphSettings": true
        },
        "creditsPosition": "top-right",
        "responsive": {
          "enabled": true
        }
      });

      function reloadData() {
        chart.dataLoader.loadData();
      }
    </script>
  </head>

  <body>
    <div id="chartdiv"></div>
    <input type="button" value="Trigger data reload" onclick="reloadData();" />
  