anchor.diff:          return console.log("hey");
           HeatmapOverlay.toggle();
       });
  +
  +
  +    // var i = 0;
  +
  +    // $('#heatmapArea').on("click", function () {
  +    //   if (i < 2) {
  +    //     clearMarkers();
  +    //   } else {
  +    //     showMarkers();
  +    //   }
  +    //   i++;
  +    // });
   };
   </script>
positive.code: <script type="text/javascript" src="assets/heatmap.js"></script>
  <script type="text/javascript" src="assets/heatmap-gmaps.js"></script>
  <script type="text/javascript">
  
  window.onload = function(){
      // standard gmaps initialization
  
negative.code:             max: 46,
              data: [
              {lat: 40.7055269, lng:-74.014346, count: 1},
              {lat: 40.7055272, lng:-74.014346, count: 1},
              {lat: 33.5608, lng:-117.24, count: 1},
              {lat: 38, lng:-97, count: 1},
              {lat: 38.9358, lng:-77.1621, count: 1}
  