gistfile1.js

(function setupGoogleMaps(){
		if(typeof google === 'undefined'){ return; }
		//Instantiate map object and set core options
		var map = new google.maps.Map(document.getElementById("map"), {
			center: new google.maps.LatLng(52.37022, 4.89517),
			zoom: 6,
			disableDefaultUI: true
		});

		//Instaniate infoWindow and marker image objects
		var infoWindow = new google.maps.InfoWindow();
		var image = new google.maps.MarkerImage("img/small-logo2.png");
		var shadow = new google.maps.MarkerImage("img/shadow-small-logo.png",
		new google.maps.Size(54.0, 41.0),
		new google.maps.Point(0, 0),
		new google.maps.Point(16.0, 20.0));

		var marker = new google.maps.Marker({
			position: new google.maps.LatLng(52.37022,4.89517),
			icon: image,
			shadow:shadow,
			map: map,
			title:"title"
		});

		var title ="Title";
		var message = "Address";
		google.maps.event.addListener(marker, 'click', function (){
			map.setZoom(15);
			map.setCenter(marker.getPosition());
			infoWindow.setContent(message);
			infoWindow.open(map, marker, title);
		});
	})();