move the pay date stuff into the library

components/membershiprenew.php

@@ -7,8 +7,7 @@ $permission="staff";
 $enable=TRUE;
 
 // Set next payment date
-$nextyear = academicYear(time())+1;
-$paydate="Sept. ".$nextyear;
+$paydate = paidUntil(time());
 
 // Only staff can use this page
 if (isset($session->groups[$permission])) {

lib/date.php

@@ -15,10 +15,10 @@ function academicYear($timestamp) {
 	}
 }
 
-
-
-
-
-
+function paidUntil($timestamp) {
+	$nextyear = academicYear($timestamp)+1;
+	$paydate = "Sept. ".$nextyear;
+	return $paydate;
+}
 
 ?>