highcharts 下钻生成堆叠图？

$(function () {
var chart;
$(document).ready(function() {

chart = new Highcharts.Chart({
chart: {
renderTo: 'container',
type: 'column',
events:{
drilldown: function (e) {
if (!e.seriesOptions) {

var data = {
series: [{
stacking: 'normal',
type: 'column',
name: 'MSIE versions 2000',
data: [10, 7, 33, 2]
},{
stacking: 'normal',
type: 'column',
name: 'MSIE versions 2010',
data: [1, 5, 10, 15]
}]
};
chart.showLoading("加载中 ...");
setTimeout(function () {
chart.hideLoading();

chart.addSeriesAsDrilldown(e.point, data.series[0]);
//只能设置一条，直接设置data.series就不行了。
//chart.addSeriesAsDrilldown(e.point, data.series);
}, 1000);

}
}
}
},
title: {
text: '测试统计'
},
xAxis: {
type:'category'
},
yAxis: {
title: {
text: '数量'
}
},
credits:{//版权连接
enabled:false
},
series: [{name: '浏览器',data: [{
y: 55,
drilldown: true
}]},{name: '浏览器12',data: [{
y: 35,
drilldown: false
}]}
]
});
});
});