Untitled

<head>
    <title>Java-Buddy: Google Maps</title>
    <script src="https://maps.googleapis.com/maps/api/js?libraries=geometry,places&sensor=false"></script>
    <style>#mapcanvas { height: 100%; width: 100%}</style>
</head>
<body>
<h1>
</h1>
    <div>
        <span id="latspan">a</span>
        <span id="lngspan">b</span>
        <span id="result">c</span>
    </div>
    <div id="mapcanvas">
        <script>
        ............
        </script>
     </div>
    </body>
 </html>

Document page = webEngine.getDocument();

 Element lat = page.getElementById("latspan");
 Element lng = page.getElementById("lngspan");