text: $(function () {
  
      $.getJSON('http://www.highcharts.com/samples/data/jsonp.php?filename=world-population.json&callback=?', function (data) {
  
          var mapData = Highcharts.geojson(Highcharts.maps['custom/world']);
  
          // Correct UK to GB in data
          $.each(data, function () {
              if (this.code === 'UK') {
                  this.code = 'GB';
              }
          });
  
          $('#container').highcharts('Map', {
              chart : {
                  borderWidth : 1
              },
  
              title: {
                  text: 'World population 2013 by country'
              },
  
              subtitle : {
                  text : 'Demo of Highcharts map with bubbles'
              },
  
              legend: {
                  enabled: false
              },
  
              mapNavigation: {
                  enabled: true,
                  buttonOptions: {
                      verticalAlign: 'bottom'
                  }
              },
  
              series : [{
                  name: 'Countries',
                  mapData: mapData,
                  color: '#E0E0E0',
                  enableMouseTracking: false
              }, {
                  type: 'mapbubble',
                  mapData: mapData,
                  name: 'Population 2013',
                  joinBy: ['iso-a2', 'code'],
                  data: data,
                  minSize: 4,
                  maxSize: '12%',
                  tooltip: {
                      pointFormat: '{point.code}: {point.z} thousands'
                  }
              }]
          });
  
      });
  });