Added support for three detector banks for FOCUS

doc/user/Makefile

@@ -4,7 +4,7 @@
 # Mark Koennecke, Juli 1998
 #------------------------------------------------------------------------
 
-all: topsi dmc sans
+all: topsi dmc sans focus
 
 topsi:
 	html2tex topman
@@ -21,3 +21,8 @@ sans:
 	latex sansman
 	latex sansman
 	dvips sansman
+focus:
+	html2tex foman
+	latex foman
+	latex foman
+	dvips foman

doc/user/fowrite.htm

@@ -25,6 +25,17 @@ is minutes.
 <DD>This command will overwrite the last data file written and thus 
  effectively erase it. Therefore this command requires manager privilege.  
 </DL>
+FOCUS has three detector banks which may not all be active at all
+times. Thus a way is needed to tell SICS about the configuration of
+the day.  This is also done through ths storefocus command. There are
+three parameters, <b>upper, middle and lower</b> which can be either on
+(value greater 0) or off (value less then or equal to 0). The value
+can be inquired with <b> storefocus par</b>. For example <b>storefocus
+middle</b> prints the flag  for the middle detector bank. With <b>
+storefocus par val </b> a new value for the parameter is set. For
+example <b>storefocus lower 1</B> switches the lower detector bank
+on. These commands are usually used in the configuration file and
+require manager privilege.  
 </P>
 </BODY>
 </HTML>