// different basemap
// L.tileLayer('http://{s}.tile.osm.org/{z}/{x}/{y}.png', {
//     attribution: '&copy; <a href="http://osm.org/copyright">OpenStreetMap</a> contributors'
// }).addTo(map);

// different basemap
L.tileLayer('https://stamen-tiles-{s}.a.ssl.fastly.net/toner-lite/{z}/{x}/{y}{r}.{ext}', {
	attribution: 'Map tiles by <a href="http://stamen.com">Stamen Design</a>, <a href="http://creativecommons.org/licenses/by/3.0">CC BY 3.0</a> &mdash; Map data &copy; <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a> contributors',
	subdomains: 'abcd',
	minZoom: 0,
	maxZoom: 18,
	ext: 'png'
}).addTo(map);

// keep track of the boundary of the markers so that we can update the
// map to fit them all
var latlngbounds = new L.latLngBounds();

L.geoJson(points, {
	pointToLayer: function (feature, latlng) {
		//return L.circleMarker(latlng);
		latlngbounds.extend(latlng);
		return L.marker(latlng);
	}
}).bindPopup(function (layer) {
	// layer.feature.geometry gives you access to all the fields
	return "<p>" + JSON.stringify(layer.feature.geometry) + "</p>";
}).addTo(map)

// rezoom the map so that all the markers fit in the view
map.fitBounds(latlngbounds);