Untitled

var centerLatitude = 42.365338;

var centerLongitude = -71.0568232;

var startZoom = 10;

//var map;

var clusterer = new Clusterer(map);

var do_refresh = true;

 

function init() {

    if (GBrowserIsCompatible()) {

        map = new GMap2(document.getElementById("map"));

        map.setCenter(new GLatLng(centerLatitude, centerLongitude), startZoom);

        map.addControl(new GLargeMapControl());

        map.addControl(new GScaleControl());

        map.addControl(new GMapTypeControl());

        GEvent.addListener(map,'zoomend',function(oldLevel, newLevel) {

            // zooming requires this: remove the existing points

            map.clearOverlays();

            updateMarkers();

        });

 

        GEvent.addListener(map,'moveend',function() {

            updateMarkers();

        });

        setTimeout(updateMarkers, 1000, true);

    }

}

 

function createMarker(gpoint,infoWinStr) {

     var marker = new GMarker(gpoint);

     GEvent.addListener(marker, 'click', function() {

         // var markerHTML = (gpoint.lat() + ", " + gpoint.lng());

          do_refresh = false;

          marker.openExtInfoWindow(

          map,

          "simple_example_window",

          infoWinStr,

          {beakOffset: 3}

            );

          //GEvent.trigger(marker,'click');

          setTimeout(function() {

            do_refresh = true;

          }, 5000);

    });

    return marker;

}

 

function updateMarkers() {

    if (!do_refresh) return;

    //create the boundary for the data

    var clusterer = new Clusterer(map);

    var bounds = map.getBounds();

    var southWest = bounds.getSouthWest();

    var northEast = bounds.getNorthEast();

    var url = '/rep_jay/fc_in_bounds?ne=' + northEast.toUrlValue() +

                  '&sw=' + southWest.toUrlValue();

       //  GLog.writeUrl(url);

    //retrieve the points using Ajax

    var request = GXmlHttp.create();

    request.open('GET', url, true);

    request.onreadystatechange = function() {

         if (request.readyState == 4) {

            if (request.status != 200) {

              GLog.write("status: " + (request.status || "?"));

            } else {

                var data = request.responseText;

                var edata = eval("(" + data + ")");

 

                //remove the existing points

                map.clearOverlays();

                var points = edata.result;

 

                //create each point from the list

                for (var i = 0; i < points.length; i++) {

                    var gp = new GLatLng(points[i].latitude + (Math.random()-.5)/10000, points[i].longitude + (Math.random()-.5)/10000);

                     var marker = createMarker(gp,'<div class="title">'+points[i]['first_name']+' '+points[i]['last_name']+'</div><div class="address">'+points[i]['address']+' <br> '+points[i]['date']+' '+points[i]['amount']+'</div>');

                    clusterer.AddMarker(marker, donors);

                }

            }

         }

    }

    request.send(null);

}

 

window.onload = init;

window.onunload = function() {

  // unloaded = true;

  GUnload();

};