ElementStacks

HTML

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

JavaScript

var category=["HG","SK","MK","MP"];
var chart = new Highcharts.Chart({
    chart: {
        renderTo: 'container',
        height: 50
    },
    title: null,
    xAxis: {
        categories:["HG","SK","MK","MP"],
        title: null,       
        lineWidth: 0        
    },
    yAxis: {
        title: null,
        lineWidth: 0
    },
    credits: {
        enabled: false
    },
    series:(function(){
        for(var series=[], i=0; i<4; i++){
            series[i] = category[i];
                console.log(JSON.stringify(category[i]));
        }
        return series;
    })()
});