function gotLocation(position) {
    window.geo_lat  = position.coords.latitude;
    window.geo_long = position.coords.longitude; 
}
function getLocation() {
    if (navigator.geolocation) {
        navigator.geolocation.getCurrentPosition(gotLocation);
    } else {
        console.log("Geolocation is not supported by this browser.");
    }
}
getLocation();