Highchart scroll

HTML

<script src="https://getfirebug.com/firebug-lite-debug.js"></script>

<script src="https://www.loly.com.au/ebp/highcharts.js"></script>
<script src="https://rawgithub.com/highslide-software/rounded-corners/master/rounded-corners.js"></script>
<div id="barGraph" ></div>

JavaScript

$(function() {
    $.getJSON('https://www.loly.com.au/ebp/jsonp.php?callback=?', function(data) {
        
        //http://www.highcharts.com/samples/data/jsonp.php?filename=aapl-c.json&callback=?
        // https://www.loly.com.au/ebp/jsonp.php?callback=?
        // Create the chart
        
        window.chart = new Highcharts.StockChart({
            chart: {
                type: 'column',
                renderTo: 'barGraph',
                backgroundColor: '#424143',
                polar: true,
                events: {
                redraw: function(event) {
                    if (chart.xAxis) {
                        var extremes = chart.xAxis[0].getExtremes();
                        if (extremes && extremes.min == extremes.dataMin) {
                            // Ajax call to load more data
                            console.log("time to load more data!");
                        
                            var x = (new Date()).getTime(), // current time
                            y = Math.round(Math.random() * 100);
                            series.addPoint([x, y], true, true);
                        }
                    } 
                } 
              } 
            }, 
            
            //styling the scrollbar
            scrollbar: {
                barBackgroundColor: 'gray',
                barBorderRadius: 7,
                barBorderWidth: 0,
                buttonBackgroundColor: 'gray',
                buttonBorderWidth: 0,
                buttonBorderRadius: 7,
                trackBackgroundColor: 'none',
                trackBorderWidth: 0,
                trackBorderRadius: 8,
                trackBorderColor: '#CCC'
            },
            
           // Hiding all labels 
            rangeSelector: {
                selected: 4,
                inputEnabled: false,
                buttonTheme: {
                    visibility: 'hidden'
                },
                labelStyle: {
                   ...