<!--Pour le regroupeur de marqueur-->
    <link rel="stylesheet" type="text/css" href="http://cdnjs.cloudflare.com/ajax/libs/leaflet.markercluster/0.4.0/MarkerCluster.css" />
  <link rel="stylesheet" type="text/css" href="http://cdnjs.cloudflare.com/ajax/libs/leaflet.markercluster/0.4.0/MarkerCluster.Default.css" />
  <script src='http://cdnjs.cloudflare.com/ajax/libs/leaflet.markercluster/0.4.0/leaflet.markercluster.js'></script>

// Les markers cluster Groups
 // Notre cluster
      var markers = L.markerClusterGroup();
      // Nos marqueurs
			var marker1 = L.marker([47.2434, -1.53547]);
      var marker2 = L.marker([47.2464, -1.53547]);
      var marker3 = L.marker([47.2494, -1.53547]);
      var marker4 = L.marker([47.2434, -1.53747]);
      var marker5 = L.marker([47.2434, -1.53947]);

      // On ajoute les marqueurs au cluster
      markers.addLayer(marker1);
      markers.addLayer(marker2);
      markers.addLayer(marker3);
      markers.addLayer(marker4);
      markers.addLayer(marker5);

      // On affiche le cluster
      carte.addLayer(markers);