cześć
jak dodać dymek z opisem po kliknięciu na marker ?
może mi ktoś pomóc?, nie znam za bardzo JS :/
wiem, że można coś takiego znaleźć, tylko ten przykład zawiera dodatkowo MarkerClusterer, więc nie chce tego burzyć

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<script>
   google.load('maps', '3', {
      other_params: 'sensor=false'
      });
      google.setOnLoadCallback(initialize);
 
      var map = null;
      var markers = null;
      var markerClusterer = null;
 
      function clusterMap () {
        for (var i = 0; i < markers.length; i++) { 
          markers[i].setOptions({ map:null, visible: false});
        }
        markerCluster = new MarkerClusterer(map, markers);
      }
 
      function unclusterMap() {
        markerCluster.clearMarkers();
        for (var i = 0; i < markers.length; i++) { 
          markers[i].setOptions({map: map, visible:true});
        }
      }
 
      function initialize() {
      var center = new google.maps.LatLng(52.229837, 21.011771);
 
	    var myOptions = {	
            zoom: 7,
            center: center,
            mapTypeId: google.maps.MapTypeId.ROADMAP
        };
 
        var map = new google.maps.Map(document.getElementById("map"), myOptions);
 
        markers = [];
        for (var i = 0, dataP; dataP = data.m[i]; i++) {
          var latLng = new google.maps.LatLng(dataP.latitude,dataP.longitude);
          var marker = new google.maps.Marker({
            position: latLng
          });
          markers.push(marker);
        }
 
        markerCluster = new MarkerClusterer(map, markers);
        var unclusterButton = document.getElementById('uncluster');
        google.maps.event.addDomListener(unclusterButton, 'click', unclusterMap);
        var clusterButton = document.getElementById('cluster');
        google.maps.event.addDomListener(clusterButton, 'click', clusterMap);
 
      }
 
 
var data = {"m": [
 
{"longitude": 21.035728, "latitude": 52.242353}
,
{"longitude": 19.952137, "latitude": 50.106075}
,
{"longitude": 21.011347, "latitude": 52.253852}
,
{"longitude": 21.009746, "latitude": 52.247374}
,
{"longitude": 21.142550, "latitude": 52.245420}
 
]}
</script>
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