title: Why Marker Manager doesn't work?
body: <p>I would use MarkerManager to group neighboring marker in one, I tested an example but it does not work. Different markers are displayed well, but they are not together when they should. The manager is not working as it should, I do not understand why.</p>
  
  <pre><code>&lt;html&gt;
  &lt;head&gt;
      &lt;title&gt;Test GMap - MarkerManager&lt;/title&gt;
      &lt;script src="http://maps.googleapis.com/maps/api/js?sensor=false"&gt;&lt;/script&gt;
      &lt;script src="http://google-maps-utility-library-v3.googlecode.com/svn/tags/markermanager/1.0/src/markermanager.js"&gt;&lt;/script&gt;
      &lt;script src="http://google-maps-utility-library-v3.googlecode.com/svn/trunk/markerclusterer/src/markerclusterer_compiled.js"&gt;&lt;/script&gt;
  &lt;/head&gt;
  
  &lt;body&gt;
      &lt;div id="my-map" style="width:100%;height:700px"&gt;&lt;/div&gt;
      &lt;script&gt;
          var maCarte = '';
          function initialisation(){
              var centreCarte = new google.maps.LatLng(47.389982, 0.688877);
              var optionsCarte = {
                          zoom: 5,
                          center: centreCarte,
                          mapTypeId: google.maps.MapTypeId.ROADMAP
                      }
              maCarte = new google.maps.Map(document.getElementById("my-map"), optionsCarte);
              // Create a new instance of the MarkerManager
              var mgr = new MarkerManager(maCarte);
              google.maps.event.addListener(mgr, 'loaded', function() {
                  console.log('loaded Map');
                  // Create marker array
                  var markers = [];
                  // Loop to create markers and adding them to the MarkerManager
                  for(var i = 0; i &lt; 50; i += 0.1) {
                      var marker = new google.maps.Marker({position: new google.maps.LatLng(47.389982 + i, 0.688877 + i)});
                      markers.push(marker);
                  }
                  //var markerCluster = new MarkerClusterer(map, markers);
                  // Add the array to the MarkerManager
                  mgr.addMarkers(markers, 8);
                  // Refresh the MarkerManager to make the markers appear on the map
                  mgr.refresh();
              });
          }
  
          google.maps.event.addDomListener(window, 'load', initialisation); 
      &lt;/script&gt;
  &lt;/body&gt;
  </code></pre>
  
  <p></p>
  
  <p>Can someone help me?</p>
  
  <p>thank you very much</p>