ElementStacks

HTML

<script src="http://highcharts.com/js/testing.js"></script>
<div id="container"></div>

JavaScript

var chart = new Highcharts.Chart({
    chart: {
        renderTo: 'container',
        width: 400,
        height: 300
    },

    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]}]
});

// create some buttons to test the resize logic
var $container = $('#container');
var origChartWidth = 400, 
    origChartHeight = 300,
    chartWidth = origChartWidth,
    chartHeight = origChartHeight;
$('<button>+</button>').insertBefore($container).click(function() {
    chart.setSize(chartWidth *= 1.1, chartHeight *= 1.1);
});
$('<button>-</button>').insertBefore($container).click(function() {
    chart.setSize(chartWidth *= 0.9, chartHeight *= 0.9);
});
$('<button>1:1</button>').insertBefore($container).click(function() {
    chartWidth = origChartWidth; 
    chartHeight = origChartHeight;
    chart.setSize(origChartWidth, origChartHeight);
});