jQuery - Disable browser's scrolling method temporarily.

ready-disable-scroll.js

// source: http://stackoverflow.com/a/4770179/1428241

var keys = [37, 38, 39, 40];
function preventDefault(e) {
  e = e || window.event;
  if (e.preventDefault)
	e.preventDefault();
  e.returnValue = false;  
}
function keydown(e) {
  for (var i = keys.length; i--;) {
	if (e.keyCode === keys[i]) {
	  preventDefault(e);
	  return;
	}
  }
}
function wheel(e) { preventDefault(e); }
function disableScroll() {
  if (window.addEventListener) {
	window.addEventListener('DOMMouseScroll', wheel, false);
  }
  window.onmousewheel = document.onmousewheel = wheel;
  document.onkeydown = keydown;
}
function enableScroll() {
  if (window.removeEventListener) {
	window.removeEventListener('DOMMouseScroll', wheel, false);
  }
  window.onmousewheel = document.onmousewheel = document.onkeydown = null;
}