Added a check for the page number on most pages
Renamed the mainHeader_inc.php file to header.php and adjusted the links. Also added a check on the logout page to see if the user is logged in or not and redirect to the login page if the user is not logged in.
Renamed the adminMenu_inc.php file
Renamed the mainFooter_inc.php file to footer.php
Changed a bit of how the footer works in logout