var iconBlue = new GIcon(); 
    iconBlue.image = 'http://www.vinirizzi.com/ima/maps/cantina.png';
    iconBlue.shadow = 'http://labs.google.com/ridefinder/images/mm_20_shadow.png';
    iconBlue.iconSize = new GSize(48, 43);
    iconBlue.shadowSize = new GSize(22, 20);
    iconBlue.iconAnchor = new GPoint(56, 24);
    iconBlue.infoWindowAnchor = new GPoint(5, 1);

    var iconRed = new GIcon(); 
    iconRed.image = 'http://www.vinirizzi.com/ima/maps/auto.png';
    iconRed.shadow = 'http://labs.google.com/ridefinder/images/mm_20_shadow.png';
    iconRed.iconSize = new GSize(48, 43);
    iconRed.shadowSize = new GSize(40, 40);
    iconRed.iconAnchor = new GPoint(-7, 20);
    iconRed.infoWindowAnchor = new GPoint(5, 1);

    var customIcons = [];
//    customIcons["cant"] = iconBlue;
    customIcons["auto"] = iconRed;

    function load(lat,lon,zoom) {
      if (GBrowserIsCompatible(lat,lon,zoom)) {
        var map = new GMap2(document.getElementById("map"));
        map.addControl(new GLargeMapControl());
        map.addControl(new GMapTypeControl());
        map.setCenter(new GLatLng(lat, lon), zoom);

        GDownloadUrl("map_markers.php", function(data) {
          var xml = GXml.parse(data);
          var markers = xml.documentElement.getElementsByTagName("marker");
          for (var i = 0; i < markers.length; i++) {
            var name = markers[i].getAttribute("name");
            var address = markers[i].getAttribute("address");
            var type = markers[i].getAttribute("type");
            var point = new GLatLng(parseFloat(markers[i].getAttribute("lat")),
                                    parseFloat(markers[i].getAttribute("lng")));
            var marker = createMarker(point, name, address, type);
            map.addOverlay(marker);
          }
        });
      }
    }

    function createMarker(point, name, address, type) {
      var marker = new GMarker(point, customIcons[type]);
      var html = name + "<br/>" + address;
      GEvent.addListener(marker, 'click', function() {
        marker.openInfoWindowHtml(html);
      });
      return marker;
    }