On Thu, 2006-08-03 at 02:00 +0900, transfire / gmail.com wrote:
> Facets has an Interval class.
> 
> T.

Thanks transfire.  This is exactly what I was looking for.  I've got my
own up and running now, but the Facets library looks very useful, and a
good place to check for useful classes in the future.

Cyrus