title: Attach arbitrary data to Highcharts data points
body: <p>Is it possible to attach additional data to a data point, and later access that data directly from an event handler?</p>
  
  <pre><code>series: [{
      data: [
          { x: ..., y: ..., customProperty:... }
      ]
  }]
  </code></pre>
  
  <p><a href="http://jsfiddle.net/JGCmt/1/" rel="nofollow">http://jsfiddle.net/JGCmt/1/</a></p>