function isTouchDevice(){
	try{
		document.createEvent("TouchEvent");
		return true;
	}catch(e){
		return false;
	}
}
function touchScroll(id){
	if(!isTouchDevice()){ //if touch events exist...
	//	document.body.style.overflow = "hidden";
	//	document.getElementById(id).style.overflow = "auto";
	}
}
touchScroll("quasi_body");