Index: trunk/ppStack/src/ppStack.h
===================================================================
--- trunk/ppStack/src/ppStack.h	(revision 34092)
+++ trunk/ppStack/src/ppStack.h	(revision 34800)
@@ -38,5 +38,8 @@
     PPSTACK_FILES_STACK,                // Stack files
     PPSTACK_FILES_UNCONV,               // Unconvolved stack files
-    PPSTACK_FILES_PHOT                  // Files for photometry
+    PPSTACK_FILES_PHOT,                 // Files for photometry
+    PPSTACK_FILES_BKG,                  // Files for bkg
+    PPSTACK_FILES_MEDIAN_IN,                // Files for median only stacks.
+    PPSTACK_FILES_MEDIAN_OUT                // Files for median only stacks.
 } ppStackFileList;
 
@@ -111,4 +114,7 @@
 bool ppStackReadoutFinalThread(psThreadJob *job // Job to process
     );
+// Perform median stacking for background
+bool ppStackCombineBackground(ppStackThreadData *stack, ppStackOptions *options, pmConfig *config);
+bool ppStackCombineMedian(ppStackThreadData *stack, ppStackOptions *options, pmConfig *config);
 
 // Return software version