Register a swipe gesture on touch screen. Requires jQuery.

simpleswipe.jquery.js

var max_swipe_duration = 800; 
var min_swipe_distance = 30;

var touchstartX, touchstartY, touchstartTime, touchMove;

// Record initial touch positions
$(window).on('touchstart', function(e) {
  touchstartX = e.touches[0].screenX;
  touchstartY = e.touches[0].screenY;
  touchstartTime = new Date();
});

// touchmove is used because touchend doesn't store X and Y positions
$(window).on('touchmove', function(e) {
  touchMove = e;
});

$(window).on('touchend', function(e) {
	deltaX = touchMove.touches[0].screenX - touchstartX;
	deltaY = touchMove.touches[0].screenY - touchstartY;
	var touchDuration = new Date() - touchstartTime;	
	var swipe_direction;

	if(Math.abs(deltaX) < min_swipe_distance) return false;
	if(touchDuration > max_swipe_duration) return false;

	if(Math.abs(deltaX / deltaY) > 2 && deltaX > 0) swipe_direction = 'right';
	if(Math.abs(deltaX / deltaY) > 2 && deltaX < 0) swipe_direction = 'left';
	if(Math.abs(deltaY / deltaX) > 2 && deltaY > 0) swipe_direction = 'down';
	if(Math.abs(deltaY / deltaX) > 2 && deltaY < 0) swipe_direction = 'up';

	if(!swipe_direction) return false;
	
	// Do something based on swipe_direction...
	$('.result').html('Swipe direction: ' + swipe_direction);
});

Sample at codepen