Index: trunk/psphot/src/psphotRadiusChecks.c
===================================================================
--- trunk/psphot/src/psphotRadiusChecks.c	(revision 9836)
+++ trunk/psphot/src/psphotRadiusChecks.c	(revision 10053)
@@ -18,4 +18,5 @@
 }
 
+// call this function whenever you (re)-define the PSF model
 bool psphotCheckRadiusPSF (pmReadout *readout, pmSource *source, pmModel *model) {
 
@@ -68,4 +69,5 @@
 }
 
+// call this function whenever you (re)-define the EXT model
 bool psphotCheckRadiusEXT (pmReadout *readout, pmSource *source, pmModel *model) {