gistfile1.txt

var keys = [37, 38, 39, 40]
var prevent = (e) => {
  if ( e.type != 'keydown' || keys.indexOf(e.keyCode) != -1 ) {
    e.preventDefault()
    return false
  }
}
var disableScroll = (node) => {
  node = node || window
  node.onwheel = node.ontouchmove = document.onkeydown = prevent
}
var enableScroll = (node) => {
  node = node || window
  node.onwheel = node.ontouchmove = document.onkeydown = null
}