anchor.diff:          google.visualization.events.addListener(timeSlider, 'statechange', selectHandler);
   
           var timeout = null;
  -        function selectHandler(e) {
  +        function selectHandler() {
             if (timeout) {
               clearTimeout(timeout);
               timeout = null;
  
positive.code: 
  <% content_for :scripts do %>
  <script type="text/javascript">
      var mymap = null;
      var sicily_coords = [37.5579, 14.1368];
      var zoom = 7;
  
negative.code: 
          allEventsRequest.fail(function(error){
              console.error(error);
          });
  
          allEventsRequest.done(function(jsonData){
              storedJsonData = jsonData;
              drawChart(jsonData);
          });
  
          $(window).resize(function () {
              if(storedJsonData)
                  drawChart(storedJsonData);
          });
      }
  
  