Two pies, one legend with unique items (merge legends) - highcharts

Question

Is it possible to do two pies in one graphic and merge legends?
I did this : http://jsfiddle.net/Adysone/YpfBs/
chart = new Highcharts.Chart({
chart: {
renderTo: 'container',
type: 'pie'
},
title: {
text: "Pie Charts",
align: 'center'
},
legend: {
layout: 'vertical',
align: 'right',
verticalAlign: 'top'
},
tooltip: {
formatter: function () {
return this.key + ': ' + this.y + ' (' + Math.round(this.percentage) + '%)';
}
},
plotOptions: {
pie: {
showInLegend: true,
size: 200
}
},
series: [
{
name: "2011",
data: [
{
name: "Apple",
color: "#FF3333",
y: 8
},
{
name: "Banana",
color: "#FFF55C",
y: 11
},
{
name: "Grape",
color: "#90007B",
y: 9
},
{
name: "Pear",
color: "#F1FFB8",
y: 3
}
],
center: [150,100],
size: 150
},
{
name: "2012",
data: [
{
name: "Apple",
color: "#FF3333",
y: 5
},
{
name: "Banana",
color: "#FFF55C",
y: 15
},
{
name: "Pear",
color: "#F1FFB8",
y: 8
}
],
center: [450,100],
size: 150
}
]
});
But legend items are duplicated since they are common in the two pies, how can I do to make these unique?
If it's not possible, can I make two legends separate?
Thanks!

Answer 1

Please take look at example http://jsfiddle.net/u7FQS/15/ which used 3 pie charts and has common legend
$(chart.series[0].data).each(function(i, e) {
e.legendItem.on('click', function(event) {
var legendItem=e.name;
event.stopPropagation();
$(chart.series).each(function(j,f){
$(this.data).each(function(k,z){
if(z.name==legendItem)
{
if(z.visible)
{
z.setVisible(false);
}
else
{
z.setVisible(true);
}
}
});
});
});
});