I tested it with my S2 and it works, but I had to put the files in a local web server because for some reason, the malicious code didn't work from jsfiddle.net

So I did the following:

  1- I tested the link provided by kristofferR (http://kristofferr.com/samsung.html).
  2- Made 2 local copies
  3- Edited one of the copies, replaceing the IMEI code with a normal phone number.
  4- Placed both files in a local web server.
  5- Accesed the files from my phone, and got the expected results with your App.

Thanks!