Google Maps APIの記述例。

google_map.html

<script src="https://maps.googleapis.com/maps/api/js?sensor=false"></script>
<script>
function initialize() {
	var latlng = new google.maps.LatLng(100, 100);
	var mapOptions = {
		center: latlng,
		zoom: 17, 
		scaleControl: true, 
		scrollwheel: false 
	};
	var map = new google.maps.Map(document.getElementById('map-canvas'), mapOptions);
	var marker = new google.maps.Marker({
	    position: latlng,
	    map: map,
	    title: ''
	});
}
google.maps.event.addDomListener(window, 'load', initialize);
</script>