function load() {
      if (GBrowserIsCompatible()) {
        var map = new GMap2(document.getElementById("mapDiv"));
        map.addControl(new GSmallMapControl());
        map.addControl(new GMapTypeControl());
        map.setCenter(new GLatLng(49.97242235423708, 16.083984375), 7);
        
        GDownloadUrl("inc/googleMaps_xml.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("nazev");
            var address = markers[i].getAttribute("ulice")+"<br/>"+markers[i].getAttribute("mesto");
            var activity = markers[i].getAttribute("sporty");
            var point = new GLatLng(parseFloat(markers[i].getAttribute("lat")),
                                    parseFloat(markers[i].getAttribute("lng")));
            var marker = createMarker(point, name, address, activity, map);
            map.addOverlay(marker);
          }
        });
      }
    }

    function createMarker(point, name, address, activity, map) {
      var marker = new google.maps.Marker(point, map);
      var html = "<h2 class=\"maps-title\">" + name + "</h2><em class=\"maps-activity\">" + activity + "</em><br/><span class=\"maps-address\">" + address  + "</span>";
      GEvent.addListener(marker, "click", function() {
        marker.openInfoWindowHtml(html, {maxWidth: 200});
      });
      return marker;
    }