highcharts获取到了后台的数据，如何赋值给series的data

 $(function(){

var title = {
      text: '金额'   
    };
    var subtitle = {
      text: 'In the latest week number/amount of transactions'
    };
    var xAxis = {
      categories: [day7, day6, day5, day4, day3, day2, day]
    };
    var yAxis = {
      title: {
         text: '金额'
      },
      plotLines: [{
         value: 0,
         width: 1,
         color: '#808080'
      }]
   };   

   var legend = {
      layout: 'vertical',
      align: 'right',
      verticalAlign: 'middle',
      borderWidth: 0
   };

   var series =  [

      {
         name: '金额',
         data: count()
      }
   ];

    var credits={
         enabled: false 
    }

   var json = {};
   json.title = title;
   json.subtitle = subtitle;
   json.xAxis = xAxis;
   json.yAxis = yAxis;
   json.tooltip = tooltip;
   json.legend = legend;
   json.series = series;
   json.credits = credits;

   $('#container').highcharts(json);

})


function count(){
         $.ajax({
               type: "POST",
               async: false,
               url: "data/money",
               success : function(data){
                       alert(data);
                  }
             }); 
     }


        怎么将输出的值赋值给data呢

 function count(){
var rst;////////
         $.ajax({
               type: "POST",
               async: false,
               url: "data/money",
               success : function(data){
                       rst=eval('('+data+')');//注意要转为json对象，不能字符串或者配置dataType为JSON省略这里的eval
                  }
             }); 
                        return rst;////////////
     }