title: Highcharts with 2 series and 2 compare dates
body: <p>have <a href="http://jsfiddle.net/EEpZR/" rel="nofollow">example of line chart</a> on Highcharts.
  We have Tokyo and New York there by 1 line each. I need to show 2 more compare lines, that will show Tokyo and New York but in other date period on same graphic in different color.</p>
  
  <pre><code>        series: [{
              name: 'Tokyo',
              data: [7.0, 6.9, 9.5, 14.5, 18.2, 21.5, 25.2, 26.5, 23.3, 18.3, 13.9, 9.6],
          }, {
              name: 'New York',
              data: [-0.2, 0.8, 5.7, 11.3, 17.0, 22.0, 24.8, 24.1, 20.1, 14.1, 8.6, 2.5]
          }]
  </code></pre>