var mymap = L.map("mymap").setView([35.6863183,139.7486702 ], 11);
 
L.control.scale({position:'bottomright'}).addTo(mymap);
 
 var osmTile =	// OSMのタイル
	L.tileLayer('//{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', {
	    attribution:
	    '&copy; <a href="http://osm.org/copyright">OpenStreetMap</a> \
contributors'
	});
 
 
var gsiTile =	// 国土地理院タイル
	L.tileLayer('//cyberjapandata.gsi.go.jp/xyz/std/{z}/{x}/{y}.png', {
	    attribution:
	    '<a href="http://maps.gsi.go.jp/development/ichiran.html">国土地理院</a>'
	}).addTo(mymap);
 
 
var baseLayers = {'OpenStreetMap': osmTile, '国土地理院': gsiTile};
 
 L.control.layers(baseLayers).addTo(mymap);