--- loncom/homework/grades.pm	2007/10/09 19:33:56	1.449
+++ loncom/homework/grades.pm	2007/10/09 23:03:22	1.450
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # The LON-CAPA Grading handler
 #
-# $Id: grades.pm,v 1.449 2007/10/09 19:33:56 banghart Exp $
+# $Id: grades.pm,v 1.450 2007/10/09 23:03:22 banghart Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -477,6 +477,7 @@ COMMONJSFUNCTIONS
 sub getclasslist {
     my ($getsec,$filterlist,$getgroup) = @_;
     my @getsec;
+    my @getgroup;
     my $stu_status = join(':',&Apache::loncommon::get_env_multiple('form.Status'));
     if (!ref($getsec)) {
 	if ($getsec ne '' && $getsec ne 'all') {
@@ -486,6 +487,14 @@ sub getclasslist {
 	@getsec=@{$getsec};
     }
     if (grep(/^all$/,@getsec)) { undef(@getsec); }
+    if (!ref($getgroup)) {
+	if ($getgroup ne '' && $getgroup ne 'all') {
+	    @getgroup=($getgroup);
+	}
+    } else {
+	@getgroup=@{$getgroup};
+    }
+    if (grep(/^all$/,@getgroup)) { undef(@getgroup); }
 
     my ($classlist,$keylist)=&Apache::loncoursedata::get_classlist();
     # Bail out if we were unable to get the classlist
@@ -512,15 +521,29 @@ sub getclasslist {
 	# filter students according to status selected
 	if ($filterlist && (!($stu_status =~ /Any/))) {
 	    if (!($stu_status =~ $status)) {
-		delete ($classlist->{$student});
+		delete($classlist->{$student});
 		next;
 	    }
 	}
+	# filter students according to groups selected
+	if (@getgroup) {
+	    my $exclude = 1;
+	    foreach my $grp(@getgroup) {
+	        if ($group eq $grp) {
+	            $exclude = 0;
+	        }
+	    }
+	    if ($exclude) {
+	        delete($classlist->{$student});
+	    }
+	}
 	$section = ($section ne '' ? $section : 'none');
 	if (&canview($section)) {
 	    if (!@getsec || grep(/^\Q$section\E$/,@getsec)) {
 		$sections{$section}++;
-		$fullnames{$student}=$fullname;
+		if ($classlist->{$student}) {
+		    $fullnames{$student}=$fullname;
+		}
 	    } else {
 		delete($classlist->{$student});
 	    }
@@ -872,7 +895,7 @@ LISTJAVASCRIPT
 	'value="Next->" /> <br />'."\n";
     $gradeTable.=&check_buttons();
     $gradeTable.='<label><input type="checkbox" name="checkPlag" checked="checked" />Check For Plagiarism</label>';
-    my ($classlist, undef, $fullname) = &getclasslist($getsec,'1');
+    my ($classlist, undef, $fullname) = &getclasslist($getsec,'1',$getgroup);
     $gradeTable.='<table border="0"><tr><td bgcolor="#777777">'.
 	'<table border="0"><tr bgcolor="#e6ffff">';
     my $loop = 0;