anchor.diff:            google.maps.event.addDomListener(document.getElementById('zone_schools_tab'), 'click', function () {
               $.each(cityBoundaries, function (index, feature) {
                 map.data.add(feature);
  -              map.data.overrideStyle(feature, {strokeWeight: 2});
  +              map.data.overrideStyle(feature, {strokeWeight: 4});
               });
             });
           <% end %>
  
positive.code:         cityBoundaries = map.data.addGeoJson(data);
  
          $.each(cityBoundaries, function (index, feature) {
            map.data.overrideStyle(feature, {strokeWeight: 2});
          });
  
          google.maps.event.addDomListener(document.getElementById('home_schools_tab'), 'click', function () {
            $.each(cityBoundaries, function (index, feature) {
              map.data.add(feature);
              map.data.overrideStyle(feature, {strokeWeight: 2});
            });
          });
  
  
negative.code: 
        var boundaryStyle = {
          fillOpacity: 0,
          strokeColor: '#80BCE7',
          strokeWeight: 0,
          clickable: false
        }
  