string to guint conversion /w GTK+ 2

[Vladimir Djokic <vladeck sezampro yu>]

hi,
maybe this isn't the mailin list in wich i  should ask for help, but...

i'm, for my final school project, making an application for serbian schools:

student data, grades, reports...

i need a function that will take a string of number separated by ',' 
('1,2,3,23,456,5,6') and translate this string into *guint* numbers so i 
can add them to *GArray*.

p.s. i'm using GTK+ 2.0.0.

THANKS! :)