map.js

var map = L.mapbox.map('map', 'kalipso.map-aa48b9v7').setView([61.573408, 98.446449], 4);

var myMarkers = L.mapbox.markerLayer().addTo(map);

myMarkers.on('layeradd', function(e) { 
    var marker = e.layer, 
        feature = marker.feature; 

var popupContent = '<p><strong><img src="' + feature.properties.logo + '" class="map_logo"/>' + feature.properties.title + '</strong><br />' + feature.properties.description + '</p>' + '<img src="' + feature.properties.image + '">'; 

marker.bindPopup(popupContent,{ 
closeButton: false, 
minWidth: 320 
}); 
marker.setIcon(L.icon(feature.properties.icon)); 
});

myMarkers.loadURL('example.geojson');