Horizontal swipe not compatible with vertical swipe ?

Hello,

Working on my website, I may have found what seems to be a bug (or a lack of knowledge :p)... ? In my testpage (http://www.soykje.com/testeur/), I wanted to have vertical swipe for mobile devices to navigate up and down, and horizontal swipe to toggle left and right sidebars.

I'm not a JS excerpt so maybe I missed something... But is there any problem in having for the same document horizontal and vertical swipe ?

Thank you !