Circular wheels

[GoogleCodeExporter]

I do have a requirement to work the hour and minute wheel in circular way like 
if user has traversed to 1-12 then it should start with again 1 instead of 
going back to 1 in backward direction. It is frustrating if take this scenario 
of clock having 9:59 pm, I am having a hard time setting it to 10:00 pm

Original issue reported on code.google.com by [email protected] on 28 Jul 2011 at 7:30