Detect onorientation change
Detect onorientation change on iOS device
window.onorientationchange = function() {
var orientation = window.orientation;
switch(orientation) {
case 0:
document.getElementById("currentOrientation").innerHTML="Now in portrait orientation";
break;
case 90:
document.getElementById("currentOrientation").innerHTML="Now in landscape orientation and turned to the left";
break;
case -90:
document.getElementById("currentOrientation").innerHTML="Now in landscape orientation and turned to the right";
break;
}
}