Prevent scroll

prevent-scroll.coffee

# Functions to disable/enable scroll

scrollPreventDefault = (e) ->
  e = e or window.event
  if e.preventDefault
    e.preventDefault()
  e.returnValue = false

keydown = (e) ->
  t = [37,38,39,40]
  n = t.length
  while n--
    if e.keyCode == t[n]
      scrollPreventDefault e

wheel = (e) ->
  scrollPreventDefault e

disableScroll = ->
  if window.addEventListener
    window.addEventListener 'DOMMouseScroll', wheel, false
  window.onmousewheel = document.onmousewheel = wheel
  document.onkeydown = keydown

  document.ontouchmove = (e) ->
    e.preventDefault()

enableScroll = ->
  if window.removeEventListener
    window.removeEventListener 'DOMMouseScroll', wheel, false
  window.onmousewheel = document.onmousewheel = document.onkeydown = null

  document.ontouchmove = (e) ->
    true

prevent-scroll.js

// Functions to disable/enable scroll
function scrollPreventDefault(e){e=e||window.event;if(e.preventDefault){e.preventDefault();}e.returnValue=false;}function keydown(e){var t=[37,38,39,40];for(var n=t.length;n--;){if(e.keyCode===t[n]){scrollPreventDefault(e);return;}}}function wheel(e){scrollPreventDefault(e);}function disableScroll(){if(window.addEventListener){window.addEventListener("DOMMouseScroll",wheel,false);}window.onmousewheel=document.onmousewheel=wheel;document.onkeydown=keydown;document.ontouchmove=function(e){e.preventDefault();};}function enableScroll(){if(window.removeEventListener){window.removeEventListener("DOMMouseScroll",wheel,false);}window.onmousewheel=document.onmousewheel=document.onkeydown=null;document.ontouchmove=function(e){return true;};}