Mapbox / Leaflet.Markercluster getLayers()

HTML

<link rel="stylesheet" href="http://cdn.leafletjs.com/leaflet-0.6.2/leaflet.css">
<script src="http://cdn.leafletjs.com/leaflet-0.6.2/leaflet.js"></script>
<link rel="stylesheet" href="http://leaflet.github.io/Leaflet.markercluster/dist/MarkerCluster.css">
<script src="http://leaflet.github.io/Leaflet.markercluster/dist/leaflet.markercluster-src.js"></script>
<link rel="stylesheet" href="http://leaflet.github.io/Leaflet.markercluster/dist/MarkerCluster.Default.css">
<div id="map"></div>
<div id="dvInfo"></div>

CSS

/* Map */
 #map {
    height: 440px;
}

JavaScript

var osm = L.tileLayer('http://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', {
    maxZoom: 18,  
});

var map = L.map('map')
    .setView([50.5, 30.51], 15)
    .addLayer(osm);

var markers = new L.FeatureGroup();
  map.on('popupopen', function () {
            $('.link').click(function (e) {
                createDialog();
            });
        });

function getRandomLatLng(map) {
    var bounds = map.getBounds(),
        southWest = bounds.getSouthWest(),
        northEast = bounds.getNorthEast(),
        lngSpan = northEast.lng - southWest.lng,
        latSpan = northEast.lat - southWest.lat;

    return new L.LatLng(
    southWest.lat + latSpan * Math.random(),
    southWest.lng + lngSpan * Math.random());
}
   var markerClusters = L.markerClusterGroup();
function populate() {
  
    for (var i = 0; i < 10; i++) {
        var marker = new L.marker(getRandomLatLng(map));
        marker.bindPopup("<a class=\'link\' ><p>Lorem ipsum dolor sit</p>Permit:'"  + i + "'</a>'", {
            showOnMouseOver: true
        });
           markerClusters.addLayer(marker);
   
    }
    return false;
}

 function createDialog() {
         $.ajax({
            dataType: 'html',
             // Try loading data without new JavaScript, or at least code that do not collide with already loaded script.
             // Otherwise (like loading this very page with "/") all script initialization code will run again, document id's will be duplicated, and weird things will happen.
            url: 'http://a.tile.openstreetmap.org/0/0/0.png',
            success: function (data) {
                $('#dvInfo').html(data);
            }
        });
 }
   map.addLayer(markerClusters);

populate();