title: Can I retrieve an ipad unique device identifier that through Safari with a js web app?
body: <p>We have an application running on a Windows Server and being accessed by IPads from Safari. The web part is written in javascript.</p>
  
  <p>We would like to store user preferences in the server, but are lacking an identifying number that we can retrieve from the ipad device through our web code, so as to store different ipad's settings under different folders. We have still not implemented user profiles.</p>
  
  <p>I've been doing some reading about the UDID and haven't found a way to retrieve this number with javascript. Is it possible? Is there any other device number or kind of ID that we could use for this purpose?</p>
  
  <p>Thank you!</p>