function getDeviceType(ua) {
  if (/ipad|android 3.0|xoom|sch-i800|playbook|tablet|kindle/i.test(ua.toLowerCase())) {
    return '5';
  }
  if (/iphone|ipod|android|blackberry|opera|mini|windows\sce|palm|smartphone|iemobile/i.test(ua.toLowerCase())) {