loading lua scripts relative to an app's path

["Wesley Smith" <wesley.hoke@...>]

How does eveyone determine the location of scripts relative to their
application?  I've been racking my brain on this one and haven't found
a solution yet.  I tried reading the directory "./" and got the hard
drive's root.  Are there other ways?  I'm trying to overcome the
problem of my app being run on different computers and not wanting to
ask the user to do any more work than download the app.

thanks,
wes