script.js

var map;
var infowindow;

function initialize() {
	var pyrmont = new google.maps.LatLng(11.2333, 78.1667);

	map = new google.maps.Map(document.getElementById('map-canvas'), {
		center: pyrmont,
		zoom: 15
	});

	var request = {
		location: pyrmont,
		radius: 5500,
		types: ['atm']
	};
	infowindow = new google.maps.InfoWindow();
	var service = new google.maps.places.PlacesService(map);
	service.nearbySearch(request, callback);
}

function initMap(results, status) {
	if (status == google.maps.places.PlacesServiceStatus.OK) {
		for (var i = 0; i < results.length; i++) {
			createMarker(results[i]);
		}
	}
}

function createMarker(place) {
	var placeLoc = place.geometry.location;
	var marker = new google.maps.Marker({map: map, position: place.geometry.location});

	google.maps.event.addListener(marker, 'click', function() {
		infowindow.setContent(place.name);
		infowindow.open(map, this);
	});
}

google.maps.event.addDomListener(window, 'load', initialize);