Stupid question about file path

[Fran=?ISO-8859-1?B?5w==?=ois Cuneo]

Hello!
I have a dummy question about File path.
I want to open automatically 2 stacks when I clic on a button, without
answer dialog.
So, I know how I have to do, when I have the full path.
But the first Stack that I want to open is on the same folder as the stack
with the button. 
So, how may I know the path of where I'm? What is the command (Location is
not working, of course).
The second stack is in a folder, inside the folder of the mainstack. I have
the same problem.
Could somebody help me?
Thank you for your answer.
Friendly
François


-------------- 
François Cuneo
Site Web dédié au Macintosh http://www.cuk.ch
E-mail: francois.cuneo at cuk.ch