Salve a tutti,
vi posto il Codice di una pagina la quale raccoglie un solo indirizzo col metodo di Autocompletamento messo a disposizione dalle API di Google:

<html>

<head>
<script src="https://maps.googleapis.com/maps/api/js?v=3.exp&sensor=false&libraries=places"></script>

<style>
body {
font-family: sans-serif;
font-size: 14px;
}
#map-canvas {
height: 400px;
width: 600px;
margin-top: 0.6em;
}
input {
border: 1px solid rgba(0, 0, 0, 0.5);
}
input.notfound {
border: 2px solid rgba(255, 0, 0, 0.4);
}
</style>

<script>
function initialize() {
var mapOptions = {
center: new google.maps.LatLng(38.178712, 13.31122060000007),
zoom: 13,
mapTypeId: google.maps.MapTypeId.ROADMAP
};
var map = new google.maps.Map(document.getElementById('map-canvas'),
mapOptions);

var input = document.getElementById('searchTextField');


var autocomplete = new google.maps.places.Autocomplete(input);

autocomplete.bindTo('bounds', map);

var infowindow = new google.maps.InfoWindow();
var marker = new google.maps.Marker({
map: map
});

google.maps.event.addListener(autocomplete, 'place_changed', function() {
infowindow.close();
marker.setVisible(false);
input.className = '';
var place = autocomplete.getPlace();
if (!place.geometry) {
// Inform the user that the place was not found and return.
input.className = 'notfound';
return;
}

// If the place has a geometry, then present it on a map.
if (place.geometry.viewport) {
map.fitBounds(place.geometry.viewport);
} else {
map.setCenter(place.geometry.location);
map.setZoom(17); // Why 17? Because it looks good.
}
var image = {
url: place.icon,
size: new google.maps.Size(71, 71),
origin: new google.maps.Point(0, 0),
anchor: new google.maps.Point(17, 34),
scaledSize: new google.maps.Size(35, 35)
};
marker.setIcon(image);
marker.setPosition(place.geometry.location);
marker.setVisible(true);

var address = '';
if (place.address_components) {
address = [
(place.address_components[0] && place.address_components[0].short_name || ''),
(place.address_components[1] && place.address_components[1].short_name || ''),
(place.address_components[2] && place.address_components[2].short_name || '')
].join(' ');
}

infowindow.setContent('<div>' + place.name + '
' + address);
infowindow.open(map, marker);
});

// Sets a listener on a radio button to change the filter type on Places
// Autocomplete.
function setupClickListener(id, types) {
var radioButton = document.getElementById(id);
google.maps.event.addDomListener(radioButton, 'click', function() {
autocomplete.setTypes(types);
});
}

setupClickListener('changetype-all', []);
setupClickListener('changetype-establishment', ['establishment']);
setupClickListener('changetype-geocode', ['geocode']);
}

function initialize() {
var mapOptions = {
center: new google.maps.LatLng(38.178712, 13.31122060000007),
zoom: 13,
mapTypeId: google.maps.MapTypeId.ROADMAP
};
var map = new google.maps.Map(document.getElementById('map-canvas'),
mapOptions);

var input = document.getElementById('searchTextField');


var autocomplete = new google.maps.places.Autocomplete(input);

autocomplete.bindTo('bounds', map);

var infowindow = new google.maps.InfoWindow();
var marker = new google.maps.Marker({
map: map
});

google.maps.event.addListener(autocomplete, 'place_changed', function() {
infowindow.close();
marker.setVisible(false);
input.className = '';
var place = autocomplete.getPlace();
if (!place.geometry) {
// Inform the user that the place was not found and return.
input.className = 'notfound';
return;
}

// If the place has a geometry, then present it on a map.
if (place.geometry.viewport) {
map.fitBounds(place.geometry.viewport);
} else {
map.setCenter(place.geometry.location);
map.setZoom(17); // Why 17? Because it looks good.
}
var image = {
url: place.icon,
size: new google.maps.Size(71, 71),
origin: new google.maps.Point(0, 0),
anchor: new google.maps.Point(17, 34),
scaledSize: new google.maps.Size(35, 35)
};
marker.setIcon(image);
marker.setPosition(place.geometry.location);
marker.setVisible(true);

var address = '';
if (place.address_components) {
address = [
(place.address_components[0] && place.address_components[0].short_name || ''),
(place.address_components[1] && place.address_components[1].short_name || ''),
(place.address_components[2] && place.address_components[2].short_name || '')
].join(' ');
}

infowindow.setContent('<div>' + place.name + '
' + address);
infowindow.open(map, marker);
});

// Sets a listener on a radio button to change the filter type on Places
// Autocomplete.
function setupClickListener(id, types) {
var radioButton = document.getElementById(id);
google.maps.event.addDomListener(radioButton, 'click', function() {
autocomplete.setTypes(types);
});
}

setupClickListener('changetype-all', []);
setupClickListener('changetype-establishment', ['establishment']);
setupClickListener('changetype-geocode', ['geocode']);
}
google.maps.event.addDomListener(window, 'load', initialize);
</script>
</head>

<body>
<center>



<form name="FormDati" method="POST" action="salva.asp">

<div>
Indirizzo di Partenza:
<input id="searchTextField" type="text" size="50" name="IndirizzoPartenza">
</div>
<div id="map-canvas"></div>



<input type="submit" value="invia">
</form>
</center>
</body>

</html>


La domanda è: io ho la necessità di raccogliere, oltre quello iniziale, diversi indirizzi e visualizzarli sulla mappa ma sempre con la funzione di Autocompletamento e non riesco.
Qualcuno gentilmente può aiutarmi?
Grazie e Buon Lavoro