--- loncom/interface/lonparmset.pm	2002/10/01 06:21:23	1.70
+++ loncom/interface/lonparmset.pm	2002/10/01 07:09:05	1.71
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Handler to set parameters for assessments
 #
-# $Id: lonparmset.pm,v 1.70 2002/10/01 06:21:23 albertel Exp $
+# $Id: lonparmset.pm,v 1.71 2002/10/01 07:09:05 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -87,9 +87,23 @@ my $coursename;
 
 Figure out a cascading parameter.
 
-Inputs:  $what $id $def
-
-Returns: I am not entirely sure.
+Inputs:  $what - a parameter spec (incluse part info and name I.E. 0.weight)
+         $id   - a bighash Id number
+         $def  - the resource's default value   'stupid emacs
+
+Returns:  A list, the first item is the index into the remaining list of items of parm valuse that is the active one, the list consists of parm values at the 11 possible levels
+
+11- resource default
+10- map default
+9 - General Course
+8 - Map level in course
+7 - resource level in course
+6 - General for section
+5 - Map level for section
+4 - resource level in section
+3 - General for specific student
+2 - Map level for specific student
+1 - resource level for specific student
 
 =cut
 
@@ -123,32 +137,32 @@ sub parmval {
 
 # --------------------------------------------------------- third, check course
 
-    if ($courseopt{$courselevel}) {
+    if (defined($courseopt{$courselevel})) {
 	$outpar[9]=$courseopt{$courselevel};
 	$result=9;
     }
 
-    if ($courseopt{$courselevelm}) {
+    if (defined($courseopt{$courselevelm})) {
 	$outpar[8]=$courseopt{$courselevelm};
 	$result=8;
     }
 
-    if ($courseopt{$courselevelr}) {
+    if (defined($courseopt{$courselevelr})) {
 	$outpar[7]=$courseopt{$courselevelr};
 	$result=7;
     }
 
-    if ($csec) {
-        if ($courseopt{$seclevel}) {
+    if (defined($csec)) {
+        if (defined($courseopt{$seclevel})) {
 	    $outpar[6]=$courseopt{$seclevel};
 	    $result=6;
 	}
-        if ($courseopt{$seclevelm}) {
+        if (defined($courseopt{$seclevelm})) {
 	    $outpar[5]=$courseopt{$seclevelm};
 	    $result=5;
 	}
 
-        if ($courseopt{$seclevelr}) {
+        if (defined($courseopt{$seclevelr})) {
 	    $outpar[4]=$courseopt{$seclevelr};
 	    $result=4;
 	}
@@ -156,23 +170,22 @@ sub parmval {
 
 # ---------------------------------------------------------- fourth, check user
 
-    if ($uname) {
-	if ($useropt{$courselevel}) {
+    if (defined($uname)) {
+	if (defined($useropt{$courselevel})) {
 	    $outpar[3]=$useropt{$courselevel};
 	    $result=3;
 	}
 
-	if ($useropt{$courselevelm}) {
+	if (defined($useropt{$courselevelm})) {
 	    $outpar[2]=$useropt{$courselevelm};
 	    $result=2;
 	}
 
-	if ($useropt{$courselevelr}) {
+	if (defined($useropt{$courselevelr})) {
 	    $outpar[1]=$useropt{$courselevelr};
 	    $result=1;
 	}
     }
-
     return ($result,@outpar);
 }
 
@@ -199,7 +212,7 @@ sub valout {
     my $result = '';
     # Values of zero are valid.
     if (! $value && $value ne '0') {
-        $result = '  ';
+	$result = '  ';
     } else {
         if ($type eq 'date_interval') {
             my ($sec,$min,$hour,$mday,$mon,$year)=gmtime($value);