饼状图的js

<script type="text/javascript" src="http://cdn.hcharts.cn/jquery/jquery-1.8.3.min.js"></script>
  <script type="text/javascript" src="http://cdn.hcharts.cn/highcharts/highcharts.js"></script>
  <script type="text/javascript" src="http://cdn.hcharts.cn/highcharts/exporting.js"></script>

 <script type="text/javascript">
                 $(function () {
    $('#container').highcharts({
        chart: {
            plotBackgroundColor: null,
            plotBorderWidth: null,
            plotShadow: false
        },
        title: {
            text: '总用户数{$cou}'
        },
        tooltip: {
             pointFormat: '{series.name}: <b>{point.percentage:.1f}%</b>'
        },
        plotOptions: {
            pie: {
                allowPointSelect: true,
                cursor: 'pointer',
                dataLabels: {
                    enabled: true,
                    color: '#000000',
                    connectorColor: '#000000',
                    format: '<b>{point.name}</b>: {point.percentage:.1f} %'
                }
            }
        },
        series: [{
            type: 'pie',
            name: 'Browser share',
            data: [
                         <foreach name="b"  item="vo">
                                ['{$vo.a}',   {$vo.b}],
                         </foreach>
            ]
        }]
    });
});              
          </script>