JS google map

map.google.js

function initialize () {
	var myLatlng = new google.maps.LatLng(55.7531262, 37.6203079);
	var mapOptions = {
		center: myLatlng,
		zoom: 16,
		mapTypeId: google.maps.MapTypeId.ROADMAP,
		scrollwheel: false,
	};

	var map = new google.maps.Map(document.getElementById('map'), mapOptions);

	var marker = new google.maps.Marker({
		position: myLatlng,
		map: map,
		icon: 'img/ico/map-balloon.png'
	});
}
if(document.getElementById('map') != null) {
	google.maps.event.addDomListener(window, 'load', initialize);
}