     extra = (vMax - vMin) * 0.2
     vMax += extra
     vMin -= extra
+
+    # Load the Visualization API and the chart package.
+    google.load 'visualization', '1.0', {
+      'packages': ['line']
+      'callback': -> loadCallback()
+    }
 
     # Set a callback to run when the Google Visualization API is loaded.
     loadCallback = ->

          minValue: vMin
          maxValue: vMax
        }
        width: 800
        height: 400
      }

      # Instantiate and draw our chart, passing in some options.

  ################

  doCharts = (visits) ->
    responseTimes = ([
      new Date(visit['TIME_ACCESSED'])
      visit['LOAD_TIME_MILLIS']
