Device Motion API

window.addEventListener('devicemotion', function(event) {
    event.accelerationIncludingGravity.x = <span id='eventgx'></span>;
    event.accelerationIncludingGravity.y = <span id='eventgy'></span>;
    event.accelerationIncludingGravity.z = <span id='eventgz'></span>;

    event.acceleration.x = <span id='eventx'></span>;
    event.acceleration.y = <span id='eventy'></span>;
    event.acceleration.z = <span id='eventz'></span>;
}, false);