Cookies in non-frame sites

Hello, Most sites today seems to be based on this style: include(top); include(current_page); include(bottom); If one wants to set cookies from current_page, how should that be handled with as clean source as possible? Before I had the top and bottom output as functions that are called from each page, so I can call header stuff before it's executed. But it's not a very good looking approach. I did it like this in every page: include(top_bottom_lib); // cookie stuff echo getTopPage(); // page stuff echo getBottomPage(); I hope you understand my problem. Thanks Best regards Emil