Split string

From: Steve (Steve.Morris_at_libero.it)
Date: 03/31/04 

Date: 31 Mar 2004 05:20:27 -0800

Hi all!
I am pretty new to fortran and I would like to know how to split a
string. More precisely I have the following problem:
a string (named DATE) record the date ex.: 2003-10-08
I would like to split it into three
2003
10
08
and treat each like a number so that I can use them for other
calculations..
Thanks a lot!
S.

P.S. I use fortran 77