var cmUrl = 'http://{s}.tile.cloudmade.com/aad...03a/997/256/{z}/{x}/{y}.png';
var cmAttr = 'Map data © 2011 OpenStreetMap contributors, Imagery © 2011 CloudMade';
var map = new L.Map('map');
map
    .setView(new L.LatLng(59.222127, 39.876359), 15)
    .addLayer(new L.TileLayer(cmUrl, { maxZoom: 18, attribution: cmAttr }));

var LeafIcon = L.Icon.extend({
    iconUrl: 'http://api.oldvologda.ru/markers/mm_20_green.png',
    shadowUrl: 'http://api.oldvologda.ru/markers/mm_20_shadow.png',
    iconSize: new L.Point(12, 20),
    shadowSize: new L.Point(22, 20),
    iconAnchor: new L.Point(12, 20),
    popupAnchor: new L.Point(0, 0)
});
var greenIcon = new LeafIcon();

map.addLayer(new L.Marker(new L.LatLng(59.220446, 39.880833), {icon: greenIcon}));