highstock,highchart ,polt lines on Y axis222

var chart;

$(document).ready(function() {
    var options = {
        chart: {
            plotBorderWidth: 1,
            defaultSeriesType: 'scatter',
            renderTo: 'bubbleChart',
        },
        xAxis: {
            max: 1,
            min: -1
        },
        yAxis: {
            max: 1,
            min: -1
        },
    };

    new Highcharts.Chart(options, function(chart) {
        chart.xAxis[0].addPlotLine({
            color: "#C0C0C0",
            width: 1.5,
            value: 0
        });

      chart.yAxis[0].addPlotLine({
       color: "#C0C0C0",
        width: 1.5,
        value: 0
      });
/*
     chart.yAxis[0].addPlotLine({
       color: "#C0C0C0",
        width: 1.5,
        value: 0.5,
      });
*/   

    chart.redraw();
    });
});


//=补充===============================================
chart.yAxis[0].addPlotLine({
                id: 'plot-line-1',
value : 10000,
color : 'green',
dashStyle : 'shortdash',
width : 2,
label : {
text : 'Last quarter minimum'
}
            });
       
        chart.xAxis[0].addPlotLine({
                id: 'plot-line-2',
value : 1362116725000,
color : 'green',
dashStyle : 'shortdash',
width : 2,
label : {
text : 'Last quarter maximum'
}
            });