api Geolocatiozador

<!DOCTYPE html>
<html>
<body>

<p id="demo">Click the button to get your coordinates:</p>

<button onclick="getLocation()">Try It</button>

<script>
var x = document.getElementById("demo");

function getLocation() {
    if (navigator.geolocation) {
        var optn = {
enableHighAccuracy: true,
            timeout: Infinity,
            maximumAge: 0
        };
        var teste = navigator.geolocation.watchPosition(showPosition, err, optn);
    } else {
        x.innerHTML = "Geolocation is not supported by this browser.";
    }
}

function showPosition(position) {
    document.getElementById('img').src = "http://maps.googleapis.com/maps/api/staticmap?size=500x400&sensor=true&markers=color:red|"+position.coords.latitude+","+position.coords.longitude+"";

    console.log(position);
    x.innerHTML="Latitude: " + position.coords.latitude +
    "<br>Longitude: " + position.coords.longitude;

}
function err(err){
console.log(err);
    }
</script>

    <img src="" id="img"/>
</body>
</html>