e the border of the chart or not
   *   },
   *   labels
   *   {
   *     disabled: false,                        // enables/disables labels showing the min/max values
   *     fillStyle: '#ffffff',                   // colour for text of labels,
   *     fontSize: 15,
   *     fontFamily: 'sans-serif',
   *     precision: 2
   *   }
   * }
   * </pre>
   *
   * @constructor
   */
  function SmoothieChart(options) {
    this.options = Util.extend({}, SmoothieChart.defaultChartOptions, options);
    this.se