var map; var initMap = function() { var template = 'http://{S}tile.openstreetmap.org/{Z}/{X}/{Y}.png'; var subdomains = ['', 'a.', 'b.', 'c.']; var provider = new MM.TemplatedLayer(template, subdomains); map = new MM.Map('map', provider, null, [ new MM.MouseWheelHandler(null, true) ]); map.setCenterZoom(new MM.Location(37.811530, -122.2666097), 14); }