title: highlight continent with mouseover using Google Visualization API GeoCharts
body: <p>I have following code and I expect that when I have mouseover that a continent it should highlight that continent: I tried this code but I did not got that working</p>
  
  <pre><code>google.maps.event.addListener(map,'mouseover',function(e){
  
              google.load('visualization', '1', {'packages': ['geochart']});
              google.setOnLoadCallback(drawRegionsMap);
  
        function drawRegionsMap() {
          var data = google.visualization.arrayToDataTable([
            ['Country', 'Popularity'],
            ['Germany', 200],
            ['United States', 300],
            ['Brazil', 400],
            ['Canada', 500],
            ['France', 600],
            ['RU', 700]
          ]);
  
           var options = {colors:['#002e5f','#CCCCCC']}; 
  
          var chart = new google.visualization.GeoChart(document.getElementById('googleMap'));
          chart.draw(data, options);
      };
  </code></pre>