var chart = new Highcharts.Chart({
   chart: {
      renderTo: 'container',
      defaultSeriesType: 'column'
   },
   title: {
      text: 'TOP 10 Visitati'
   },
   subtitle: {
      text: 'Source: WorldClimate.com'
   },
   xAxis: {
      categories: [
         'Jan', 
         'Feb', 
         'Mar', 
         'Apr', 
         'May', 
         'Jun', 
         'Jul', 
         'Aug', 
         'Sep', 
         'Oct', 
         'Nov', 
         'Dec'
      ]
   },
   yAxis: {
      min: 0,
      title: {
         text: 'Rainfall (mm)'
      }
   },
   legend: {
      layout: 'vertical',
      backgroundColor: themes[theme].legendBackgroundColor || '#FFFFFF',
      style: {
         left: '100px',
         top: '70px',
         bottom: 'auto'
      }
   },
   tooltip: {
      formatter: function() {
         return '<b>'+ this.series.name +'</b><br/>'+
            this.x +': '+ this.y +' mm';
      }
   },
   plotOptions: {
      column: {
         pointPadding: 0.2,
         borderWidth: 0
      }
   },
        series: [{
      name: 'Tokyo',
      data: [49.9, 71.5, 106.4, 129.2, 144.0, 176.0, 135.6, 148.5, 216.4, 194.1, 95.6, 54.4]

   }]
});