map.js

drawLandmarks: function() {
    var parent = this;
    var createListenter = function(shapeMarker, landmark) {
      google.maps.event.addListener(shapeMarker, 'click', function() {
        parent.setLocation('activity', landmark.id, landmark.name, shapeMarker);
      });
    }

    for (var i = 0, landmark; landmark = this.landmarkData[i]; i++) {
      if(landmark.type == "circle") {
        var shape = this.drawCircle(landmark);
      } else {
        var shape = this.drawPolygon(landmark);
        var shapeMarker = new google.maps.Marker({
          position: this.getPolygonCenter(landmark),
          title: landmark.name,
          map: this.map
        });

        createListenter(shapeMarker, landmark);
      }
      this.landmarks.push(shape);
    }
 
    this.setBounds();
  },