ユーザーエージェントに依存しない、JavaScriptでのブラウザハックまとめ ref: http://qiita.com/sawadays0118/items/325022cb987412d95a4b

file0.js

var supportHack = (function() {
  return {
  IE9:document.uniqueID && document.documentMode == 9,
  IE10:document.uniqueID && document.documentMode == 10,
  IE11:document.uniqueID && document.documentMode == 11,
  Trident:document.uniqueID,
  Edge:'-ms-scroll-limit' in document.documentElement.style && '-ms-ime-align' in document.documentElement.style && !window.navigator.msPointerEnabled,
  Gecko:'MozAppearance' in document.documentElement.style,
  Presto:window.opera,
  Blink:window.chrome && window.chrome.webstore,
  Webkit:!window.chrome && 'WebkitAppearance' in document.documentElement.style,
  Touch:typeof document.ontouchstart != "undefined",
  Mobile:typeof window.orientation != "undefined",
  ltAd44:typeof window.orientation != "undefined" && typeof(EventSource) == "undefined",
  Pointer:window.navigator.pointerEnabled,
  MSPoniter:window.navigator.msPointerEnabled
  }
})();