Setting S&T Almanac?

Hi. Does anyone know of a way to pass along a user's latitude/longitude
to the Sky & Telescope web site? For it's almanac? I believe the S&T
site is browser cookie driven, but I had a thought.

When you [submit] a form, input variables can be passed in the
address. Example: form action="www.temp.com/script.asp" with input
name="txt" value="123" could be addressed simply as
www.temp.com/script.asp?txt=123. If I knew what, if any, input
variables the S&T asp looked for, I could pass them along. Any advice
is appreciated...Dennis