title: Detect Mountain Lion (OS X 10.8) in javascript?
body: <p>like <a href="https://stackoverflow.com/questions/7706019/detect-lion-os-x-10-7-in-javascript">Detect Lion (OS X 10.7) in javascript?</a> but I need to detect the last OS (Mountain Lion).</p>
  
  <p>Can someone tell me the user agent of Safari / Firefox / chrome on this OS?</p>
  
  <p>Unfortunately I don't have a mac...</p>