location.js

function Location(id, data) {
  
  // Public variables
  this.id                  = id;
  this.latitude            = data["location"]["latitude"];
  this.longitude           = data["location"]["longitude"];
  this.postal_district_id  = data["location"]["postal_district_id"];
  this.area_from           = data["location"]["area_from"];
  this.area_to             = 

...

};

map_manager.js

// This class manages everything related to the locations map
// This example does not include the full code
function MapManager(location_manager) {
  this.location_manager = location_manager;
  this.locations = location_manager.locations;
  this.markers = [];
  this.skip_clear = location_manager.skip_clear;

  // Subscribe to events
  var map_manager = this;
  $(document).bind("table.markerClicked", function(e, location) { location.getMapMarker().openInfoWindowHtml(map_manager.getInfoWindowHtml(location)); });
  $(document).bind("table.rowMouseOver", function(e, location) { map_manager.highlightMarker(location); });
  $(document).bind("table.rowMouseOut", function(e, location) { map_manager.resetHighlight(location); });
  $(document).bind("postal_districts.filterChanged", function(e) { map_manager.updateMap(false); map_manager.centerAndZoomOnMarkers(); });
  $(document).bind("size.filterChanged", function(e) { map_manager.updateMap(false); map_manager.centerAndZoomOnMarkers(); });
  $(document).bind("price.filterChanged", function(e) { map_manager.updateMap(false); map_manager.centerAndZoomOnMarkers(); });

  // "Constructor"
  this.setupLocationsMap = function() {
    this.addMarkersToMap();
  };

  this.markerClicked = function(location) {
    location.getMapMarker().openInfoWindowHtml(this.getInfoWindowHtml(location));
    $(document).trigger('map.markerClicked',[location]); 
  };

  this.markerMouseOver = function(location) {
    this.highlightMarker(location);
    $(document).trigger('map.markerMouseOver',[location]); 
  };

  this.markerMouseOut = function(location) {
    this.resetHighlight(location);
    $(document).trigger('map.markerMouseOut',[location]); 
  };

  // Adds a single marker to the map
  this.addMarker = function(marker) {
    this.markers.push(marker);
    this.map().addOverlay(marker);
  };

  // Adds a location to the map
  this.addLocationToMap = function(location) {
    // Build the marker
    marker = new GMarker( ... );

    // Hook up events
    var map_manager = this;
    GEvent.addListener(marker, 'click', function(coordinates) { map_manager.markerClicked(location); });
    GEvent.addListener(marker, 'mouseover', function(coordinates) { map_manager.markerMouseOver(location); });
    GEvent.addListener(marker, 'mouseout', function(coordinates) { map_manager.markerMouseOut(location); });

    // Add it to the map
    this.addMarker(marker);
  };

  ...

  // Constructor "calls"
  this.setupLocationsMap();
}