disable_pointer_events.js

/**
 * Disable and enable event on scroll begin and scroll end.
 *
 * 	Quick tidy, auto for active hover styles, and set in self executing method
 *  Check for addEventListener, don't bother with IE8 and older browsers
 *	Tom Taylor - 03/06/14 - http://tommytaylor.co.uk
 * 
 * @see http://www.thecssninja.com/javascript/pointer-events-60fps
 */
(function(w, d) {
  var doc = d.documentElement || d.body,
      timer;
  
  if (w.addEventListener) {
	  w.addEventListener('scroll', function() {
		  w.clearTimeout(timer);
		  
		  if(!doc.style.pointerEvents) {
			  doc.style.pointerEvents = 'none';
		  }
	  
		  timer = w.setTimeout(function() {
			  doc.style.pointerEvents = 'auto';
		  }, 200);
	  }, false);
  }
  
})(window, document);