$ ->
  window.ua = {}
  ua = window.ua

  ua.name = window.navigator.userAgent.toLowerCase()

  ua.isiPhone = ua.name.indexOf("iphone") > -1
  ua.isiPod = ua.name.indexOf("ipod") > -1
  ua.isiPad = ua.name.indexOf("ipad") > -1
  ua.isiOS = ua.isiPhone or ua.isiPod or ua.isiPad
  ua.isAndroid = ua.name.indexOf("android") > -1
  ua.isTablet = ua.isiPad or (ua.isAndroid and ua.name.indexOf("mobile") < 0)

  if ua.isiOS
    verArray = /(os)\s([0-9]{1,}[\_0-9]{1,})/.exec(ua.name)
    ua.ver = parseInt(verArray[2].replace(/\./g, ""), 10) if verArray

  if ua.isAndroid
    verArray = /(android)\s([0-9]{1,}[\.0-9]{1,})/.exec(ua.name)
    ua.ver = parseInt(verArray[2].replace(/\./g, ""), 10) if verArray

  if ua.isiPhone
    w = screen.width
    h = screen.height
    ua.iPhoneVer = if (w is 480 or h is 480) then "iPhone4" else if (w is 568 or h is 568) then "iPhone5" else if (w is 667 or h is 667) then "iPhone6" else if (w is 736 or h is 736) then "iPhone6plus" else "iPhone-unknown"

  $("body")
    .addClass ->
      c = ""
      if ua.isiPhone
        c += "iPhone "
        c += "#{ua.iPhoneVer} "
      c += "iPod " if ua.isiPod
      c += "iPad " if ua.isiPad
      c += "iOS iOS_#{ua.ver} " if ua.isiOS
      c += "android android_#{ua.ver} " if ua.isAndroid
      c += "tablet" if ua.isTablet
      c

  return