// Code snippet for adding a HTML table representation of the chart data
Highcharts.Chart.prototype.callbacks.push(function (chart) {

    var div = document.createElement('div');

    chart.container.parentNode.appendChild(div);
    div.innerHTML = chart.getTable();

    // Set ARIA attributes
    chart.renderTo.setAttribute('aria-label', 'A chart. ' + chart.options.title.text + '. ' + chart.options.subtitle.text);
    chart.container.setAttribute('aria-hidden', true);
    div.setAttribute('aria-label', 'A tabular view of the data in the chart.');
    div.style.position = 'absolute';
    div.style.left = '-9999em';
    div.style.width = '1px';
    div.style.height = '1px';
    div.style.overflow = 'hidden';
});


Highcharts.chart('container', {

    title: {
        text: 'Accessible Highcharts'
    },

    subtitle: {
        text: 'A hidden but machine readable HTML table contains this chart\'s data'
    },

    xAxis: {
        categories: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun',
            'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec']
    },

    series: [{
        data: [29.9, 71.5, 106.4, 129.2, 144.0, 176.0, 135.6, 148.5, 216.4, 194.1, 95.6, 54.4]
    }]

});
