var locations = [
['MegaBox', 22.319726, 114.208476],
['Empire Centre', 22.298226, 114.178285],
['Carnarvon Road', 22.300258, 114.173277],
['Metroplaza', 22.357530, 114.126355],
];
var map = new google.maps.Map(document.getElementById('MultiMap'), {
zoom: 12,
center: new google.maps.LatLng(22.298226, 114.17828),
mapTypeId: google.maps.MapTypeId.ROADMAP
});
var infowindow = new google.maps.InfoWindow();
var marker, i;
for (i = 0; i < locations.length; i++) {
marker = new google.maps.Marker({
position: new google.maps.LatLng(locations[i][1], locations[i][2]),
map: map
});
google.maps.event.addListener(marker, 'click', (function(marker, i) {
return function() {
infowindow.setContent(locations[i][0]);
infowindow.open(map, marker);
}
})(marker, i));
}