     line:
       connectNull: true
 
+  # Initialise chart
   initChart = (container) ->
     chart = c3.generate(chartOptions)
 
+  # Custom chart legend
   renderLegend = (data) ->
+    # Append li
     d3.select('.legend').selectAll('li').data(data["legend"])
       .enter().append 'li'
       .attr('class', 'key', 'data-id', (id) -> id)

      columns: data["columns"]
    renderLegend(data)

  updateChartHeader = (data) =>
    $('#chart-container .chart-header').attr('id', "tab_" + data["title"][1])
    $('#chart-container .chart-header h2').text(data["title"][0])

ready = ->
  chart = null
  supertabs = $(".super-tab-wrapper")

  # On click toggle classes
