--- loncom/homework/radiobuttonresponse.pm	2001/02/22 00:49:03	1.13
+++ loncom/homework/radiobuttonresponse.pm	2001/03/01 01:20:04	1.14
@@ -25,6 +25,8 @@ sub end_radiobuttonresponse {
 %Apache::response::foilgroup={};
 sub start_foilgroup {
   %Apache::response::foilgroup={};
+  $Apache::optionresponse::conceptgroup=0;
+  &setrandomnumber();
   return '';
 }
 
@@ -44,7 +46,6 @@ sub end_foilgroup {
   my $result;
   if ($target ne 'meta') {
     my $name;
-    &setrandomnumber();
     my ($truecnt,$falsecnt,$max) = &getfoilcounts($parstack,$safeeval);
     my $count=0;
     # we will add in 1 of the true statements
@@ -143,6 +144,31 @@ sub displayfoils {
   return $result."<br />";
 }
 
+sub start_conceptgroup {
+  $Apache::optionresponse::conceptgroup=1;  
+  %Apache::response::conceptgroup={};
+  return '';
+}
+
+sub end_conceptgroup {
+  my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
+  $Apache::optionresponse::conceptgroup=0;  
+  if ($target eq 'web' || $target eq 'grade') {
+    my @names = @{ $Apache::response::conceptgroup{'names'} };
+    my $pick=int rand $#names+1;
+    my $name=$names[$pick];
+    push @{ $Apache::response::foilgroup{'names'} }, $name;
+    $Apache::response::foilgroup{"$name.text"} =  $Apache::response::conceptgroup{"$name.text"};
+    $Apache::response::foilgroup{"$name.value"} = $Apache::response::conceptgroup{"$name.value"};
+    my $args;
+    if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
+    my $concept = &Apache::run::run("{$args;".'return $concept}',$safeeval);
+    $Apache::response::foilgroup{"$name.concept"} = $concept;
+    &Apache::lonxml::debug("Selecting $name in $concept");
+  }
+  return '';
+}
+
 sub start_foil {
   &Apache::lonxml::startredirection;
   return '';