<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no">
<meta charset="utf-8">
<title>KML Layers</title>
<style>
html, body, #map-canvas {
height: 100%;
margin: 0px;
padding: 0px
}
</style>
<script src="https://maps.googleapis.com/maps/api/js?v=3.exp&signed_in=true"></script>
</head>
<body>
<script>
function initialize() {
var koshigaya = new google.maps.LatLng(35.53,139.47);
var mapOptions = {
zoom:8,
center: koshigaya
}
var map = new google.maps.Map(document.getElementById('map-canvas'), mapOptions);
var ctaLayer = new google.maps.KmlLayer({
url: 'http://potametabo.com/kml/20140928.kml'
});
ctaLayer.setMap(map);
}
google.maps.event.addDomListener(window, 'load', initialize);
</script>
<div id="map-canvas"></div>
</body>
</html>