ElementStacks

HTML

<script src="http://highcharts.com/js/testing.js"></script>
<div id="container" style="height: 400px; width: 500px"></div>

JavaScript

var chart = new Highcharts.Chart({
    chart: {
        renderTo: 'container',
        events: {
            load: function(){
                this.xAxis[0].chart = this
            }
        },
        zoomType: 'x'
    },
    xAxis: {
        events: {
            setExtremes: function(e){
                console.log(this.chart)
            }
        }
    },
    
    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]
    }]
});