Untitled

<head>
    <script src="https://maps.googleapis.com/maps/api/jsv=3.exp&sensor=false&librariesplaces"></script>
    <script type="text/javascript">
        function initialize() {
            var input = document.getElementById('searchTextField');
            var autocomplete = new google.maps.places.Autocomplete(input);
        }
        google.maps.event.addDomListener(window, 'load', initialize);
    </script>
</head>
<body>
<input id="searchTextField" type="text" size="50">
</body>