Get Accerlerometer values

gistfile1.js

 //check for mobile and accerlerometer support
if(this.isMobile && window.DeviceOrientationEvent) {  

    //wireup the event
    window.addEventListener('deviceorientation', function(eventData){

        //grab the accelerometer values
        this.target.x = eventData.gamma * 2; //exaggerate the effect
        this.target.y = eventData.beta * 3;

    }, false);
}