--- loncom/homework/lonhomework.pm	2004/12/17 22:30:30	1.187
+++ loncom/homework/lonhomework.pm	2004/12/20 17:24:10	1.189
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # The LON-CAPA Homework handler
 #
-# $Id: lonhomework.pm,v 1.187 2004/12/17 22:30:30 albertel Exp $
+# $Id: lonhomework.pm,v 1.189 2004/12/20 17:24:10 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -53,12 +53,31 @@ use HTML::Entities();
 use Apache::loncommon();
 use Apache::lonlocal;
 use Time::HiRes qw( gettimeofday tv_interval );
+use Apache::lonnet();
+
+# FIXME - improve commenting
+
 
 BEGIN {
     &Apache::lonxml::register_insert();
 }
 
+
+#
+# Decides what targets to render for.
+# Implicit inputs:
+#   Various session environment variables:
+#      request.state -  published  - is a /res/ resource
+#                       uploaded   - is a /uploaded/ resource
+#                       contruct   - is a /priv/ resource
+#      form.grade_target - a form parameter requesting a specific target
 sub get_target {
+    &Apache::lonxml::debug("request.state = $ENV{'request.state'}");
+    if( defined($ENV{'form.grade_target'})) {
+	&Apache::lonxml::debug("form.grade_target= $ENV{'form.grade_target'}");
+    } else {
+	&Apache::lonxml::debug("form.grade_target <undefined>");
+    }
     if (($ENV{'request.state'} eq "published") ||
 	($ENV{'request.state'} eq "uploaded")) {
 	if ( defined($ENV{'form.grade_target'}  ) 
@@ -384,7 +403,7 @@ sub setuppermissions {
 	$viewgrades = &Apache::lonnet::allowed('vgr',$ENV{'request.course.id'}.
                                                '/'.$ENV{'request.course.sec'});
     }
-    $Apache::lonhomework::viewgrades = $viewgrades;
+    $Apache::lonhomework::viewgrades = $viewgrades; # File global variable...dirt.
     if ($Apache::lonhomework::browse eq 'F' && 
 	$ENV{'form.devalidatecourseresdata'} eq 'on') {
 	my (undef,$courseid) = &Apache::lonxml::whichuser();
@@ -608,6 +627,9 @@ sub editxmlmode {
     return '';
 }
 
+#
+#    Render the page in whatever target desired.
+#
 sub renderpage {
     my ($request,$file) = @_;