/*var mymap = L.map("mymap").setView([38.015583, 139.904966], 13);
L.tileLayer('http://{s}.tile.osm.org/{z}/{x}/{y}.png', {
 attribution:
   '&copy; <a href="http://osm.org/copyright">OpenStreetMap</a> contributors'
   }).addTo(mymap); */
var mymap = L.map("mymap").setView([38.015583, 139.904966], 13);
L.tileLayer('http://{s}.tile.osm.org/{z}/{x}/{y}.png', {
 attribution:
   '&copy; <a href="http://osm.org/copyright">OpenStreetMap</a> contributors'
}).addTo(mymap);