function chiriin(){ var mymap = L.map("hogemap").setView([38.891, 139.824], 16); L.tileLayer('//{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', { attribution: '© <a href="http://osm.org/copyright">OpenStreetMap</a> contributors' }).addTo(mymap); L.marker([38.891, 139.824]).addTo(mymap); } document.addEventListener("DOMContentLoaded", chiriin, false);