Google maps GeoCode with Searchbar

index.php

<form action="" id="pointLookup">
	<input type="text" name="location" id="location" required maxlength="255" minlength="3">
	<button type="submit">Submit</button>
</form>
<div id="map-canvas" style="width:100%; height:400px;"></div>
<script>

var geocoder;
var map;
var places;
var markers = [];

function initialize() {
	// create the geocoder
	geocoder = new google.maps.Geocoder();

	// set some default map details, initial center point, zoom and style
	var mapOptions = {
		center: new google.maps.LatLng(40.74649, -74.0094),
		zoom: 7,
		mapTypeId: google.maps.MapTypeId.ROADMAP
	};

	// create the map and reference the div#map-canvas container
	map = new google.maps.Map(document.getElementById("map-canvas"), mapOptions);
}
// when page is ready, initialize the map!
//google.maps.event.addDomListener(window, 'load', initialize);

function fetchPlaces(lat, lng) {
	var infowindow = new google.maps.InfoWindow({
		content: ''
	});
	jQuery.ajax({
		url: 'SOMEJSONURL',
		data: {
			'lat': lat,
			'lng': lng
		},
		success: function (response) {
			$('#map-canvas').show();
			$.each(JSON.parse(response), function (index, value) {

				tmpLatLng = new google.maps.LatLng(value.Latitude.replace(',', '.'), value.Longitude.replace(',', '.'));
				// make and place map maker.
				var marker = new google.maps.Marker({
					map: map,
					position: tmpLatLng,
					title: 'name'
				});

				markers.push(marker);
			});
		}
	})
};

jQuery("#pointLookup").submit(function (e) {

	// get the location text field value
	var loc = jQuery("#location").val();
	geocoder.geocode({
		'address': loc, 
		'region':'FR'
	}, function (results, status) {
		if (status == google.maps.GeocoderStatus.OK) {
			map.setCenter(results[0].geometry.location);
			var marker = new google.maps.Marker({
				map: map,
				position: results[0].geometry.location
			});

			markers.push(marker);

			// preparing data for form posting
			var lat = results[0].geometry.location.lat();
			var lng = results[0].geometry.location.lng();
			var loc_name = results[0].formatted_address;
console.log(results[0]);
			// Get markers
			fetchPlaces(lat, lng);
		} else {
			alert("Try again. Geocode was not successful for the following reason: " + status);
		}
	});

	e.preventDefault();
	return false;
});
</script>