title: Posting data to the server from highchart points
body: <p>I am trying to post data from highcharts. </p>
  
  <pre><code>  point: {
      events: {
          click: function (e) {
              hs.htmlExpand(null, {
                  pageOrigin: {
                      x: e.pageX || e.clientX,
                      y: e.pageY || e.clientY
                  },
                  headingText: this.series.name,
                  maincontentText: Highcharts.dateFormat('%A, %b %e, %Y', this.x) + ':&lt;br/&gt; ' +
                      this.y + ' visits ' + '&lt;div&gt;'+'&lt;button onclick="posting(this.y)"&gt;'+'send report' +'&lt;/button&gt;'+'&lt;/div&gt;',
                  width: 200
              });
          }
      }
  }
  </code></pre>
  
  <p>I am calling a function on clicking the button and I want to send data to it. How can we send <code>this.y</code> to <code>posting()</code> function so that we get current point value in the function. <a href="http://jsfiddle.net/8zsyg26a/" rel="nofollow">This fiddler</a> is showing the <code>undefined</code> in alert. How can I achieve the <code>this.y</code> value there. Click on the <strong>points</strong> in the chart then click the <strong>send report</strong> button and you will get my problem.</p>