function setKeyCode(keyCode)
{
  if (getSubCookie("commerce", "keyCode") == null)
  {
    setSubCookie("commerce", "keyCode", keyCode);
  }
}

function deleteKeyCode()
{
  if (getSubCookie("commerce", "keyCode") != null)
  {
    deleteSubCookie("commerce", "keyCode");
  }
}