[unexpected event occurring] Swipe Event Occurs When I Scroll Vertically

[unexpected event occurring] Swipe Event Occurs When I Scroll Vertically

(jQuery Mobile alpha3)

Swipe event occurs unexpectedly  when I scroll vertically.

This is the code, which handle swipe event(line 660):
  1. if ( stop.time - start.time < 1000 &&
  2.     Math.abs( start.coords[0] - stop.coords[0]) > 30 &&
  3.     Math.abs( start.coords[1] - stop.coords[1]) < 75 ) {
* 1. distance between start.x and stop.x should be more than 30
* 2. distance between start.y and stop.y should be less than 75

This is the condition of swipe event occurring.

It looks like proper, but the condition 2 don't work properly, because [Math.abs( start.coords[1] - stop.coords[1])] get to be small value when vertical screen scrolling occurs.