<html>
  <head>
    <link rel="stylesheet" type="text/css" href="/css/c3.css">
  </head>
  <body>
    <div id="chart"></div>

    <script src="http://d3js.org/d3.v3.min.js" charset="utf-8"></script>
    <script src="/js/c3.js"></script>
    <script>
      var chart = c3.generate({
        bindto: '#chart',
        data: {
          columns: [
            ['sample', 30, 200, 100, 400, 150, 250]
          ]
        },
        axis: {
//          rotated: true,
        },
        grid: {
          x: {
            lines: [{value: 3, text:'Label 3'}, {value: 4.5, text: 'Label 4.5'}]
          }
        }
      });

      setTimeout(function () {
        chart.xgrids([{value: 1, text:'Label 1'}, {value: 4, text: 'Label 4'}]);
      }, 1000);

      setTimeout(function () {
        chart.xgrids([{value: 2, text:'Label 2'}]);
      }, 2000);

      setTimeout(function () {
        chart.xgrids.add([{value: 3, text:'Label 3', class:'hoge'}]);
      }, 3000);

      setTimeout(function () {
        chart.xgrids.remove({value:2});
      }, 4000);

      setTimeout(function () {
        chart.xgrids.remove({class:'hoge'});
      }, 5000);
    </script>
  </body>
</html>