[Solved]-Highcharts - How to get horizontal error bars?-Highcharts

use plotLines to darw lines on the chart

yAxis: [{
plotLines:[{
value : where do you want the line,
color: 'color for the line'
}]
}]

the same is possible for xAxis

if you want you can add them on demand using the method addPlotLine();

here is the example for plotLines http://jsfiddle.net/QWLhC/

chart.xAxis[0].addPlotLine({
value: where do you want the plotLine,
color: 'color of the plot line'
});

You can use simple line series, where each error bar will be separate series, but all will be connected to one master series, see example: http://jsfiddle.net/3bQne/646/

var chart = new Highcharts.Chart({
    chart: {
        renderTo: 'container'
    },
    plotOptions: {
        line: {
            color: 'red',
            lineWidth: 10,
            marker: {
                enabled: false,
                states: {
                    hover: {
                        enabled: false
                    }
                }
            }
        }
    },
    series: [{
        type: 'column',
        name: 'some data',
        data: [4, 11, 5, 16, 9, 22, 11, 1]        
    }, {
        type: 'line',
        name: 'errors',
        id: 'err',
        data: [ [0, 4],[3, 4]]
    }, {
        type: 'line',
        name: 'errors',
        linkedTo: 'err',
        data: [ [3, 1], [6, 1]]
    }, {
        type: 'line',
        name: 'errors',
        linkedTo: 'err',
        data: [ [2,10], [3,10]]
    }]
});