var maps= L.map("map").setView([38.891, 139.824], 16);

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

maps.on("click", function(e){ //map click Event
    var popup = L.popup()
    .setLatLng(e.latlng) //
    .setContent('<h1>ここの位置情報だよ</h1><p>'+e.latlng+'</p>')
    .openOn(maps);
});

var piyo=L.icon({
    iconUrl:'piyopiyo.gif',
    iconSize:[50, 80],
    iconAnchor:[19, 79],
    popupAnchor:[9,-80]
});

var egao=L.marker([38.8916436801475,139.81986558030144]).bindPopup("そのひよこ消えるよ");

egao.setIcon(piyo).addTo(maps);

var line=[
    [38.89443, 139.813107],
    [38.892893, 139.813665],
    [38.890688, 139.814609]
];

var polyline=L.polyline(line,{opacity:1,weight:10}).bindPopup("<img src='../egao.png'>").addTo(maps);

//maps.fitBounds(polyline.getBounds());