function getLocation()
{
    if (navigator.geolocation)
    {
        navigator.geolocation.getCurrentPosition(showPosition);
    }
    else{x.innerHTML = "Geolocation is not supported by this browser, please manually enter your postcode above";}

    );
}

function showPosition(position)
{
    x.innerHTML = "Latitude: " + position.coords.latitude +
    "<br>Longitude: " + position.coords.longitude;
}

navigator.geolocation.getCurrentPosition(
  show_map, handle_error);

function handle_error(err) {
  if (err.code == 1) {
    // user said no!
  }
}