wrong order of declaration

Hello I have compiled my program with gpc --standard-pascal ex1.pas -o ex1.aout I got the following error: ex1.pas:15:Wrong order of declerations according to ISO 7158 Pascal in function 'A' : My code at line 15 is: function a (b:integer): integer; What is wrong with it? --------------------------------- Do you Yahoo!? Yahoo! Mail - Helps protect you from nasty viruses.