<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/d3.min.js" charset="utf-8"></script>
    <script src="/js/c3.js"></script>
    <script src="/js/samples/plugin.js"></script>
    <script>
      var chart = c3.generate({
        data: {
          columns: [
            ['data1', 30, 200, 100, 400, 150, 250],
            ['data2', 50, 