--- loncom/homework/lonhomework.pm	2009/03/26 18:21:24	1.308
+++ loncom/homework/lonhomework.pm	2010/08/20 03:48:29	1.310.4.1
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # The LON-CAPA Homework handler
 #
-# $Id: lonhomework.pm,v 1.308 2009/03/26 18:21:24 bisitz Exp $
+# $Id: lonhomework.pm,v 1.310.4.1 2010/08/20 03:48:29 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -111,7 +111,11 @@ sub get_target {
 	} elsif ( $env{'form.grade_target'} eq 'webgrade'
 		  && ($Apache::lonhomework::queuegrade eq 'F' )) {
 	    return ($env{'form.grade_target'});
-	}
+        } elsif ($env{'form.grade_target'} eq 'answer') {
+            if ($env{'form.answer_output_mode'} eq 'tex') {
+                return ($env{'form.grade_target'});
+            }
+        }
 	if ($env{'form.webgrade'} &&
 	    ($Apache::lonhomework::modifygrades eq 'F'
 	     || $Apache::lonhomework::queuegrade eq 'F' )) {
@@ -297,12 +301,15 @@ sub check_slot_access {
 	return ('WAITING_FOR_GRADE');
     }
 
-    # no slot is currently open, and has been checked in for this version
-    # previous slot is therefore CLOSED, so therefore the problem is
+    # Previously used slot is no longer open, and has been checked in for this version.
+    # However, the problem is not closed, and potentially, another slot might be
+    # used to gain access to it to work on it, until the due date is reached, and the
+    # problem then becomes CLOSED.  Therefore return the slotstatus - 
+    # (which will be NOT_IN_SLOT).
     if (!defined($slot_name)
 	&& $checkedin 
 	&& $type eq 'problem') {
-	return ('CLOSED',$datemsg);
+        return ($slotstatus);
     }
 
     if ($slotstatus eq 'NOT_IN_A_SLOT' 
@@ -690,7 +697,7 @@ sub analyze_header {
 
     $result .= 
 	&Apache::lonxml::message_location().'
-            <form name="lonhomework" method="POST" action="'.
+            <form name="lonhomework" method="post" action="'.
 	    &HTML::Entities::encode($env{'request.uri'},'<>&"').'">'.
             '<input type="hidden" name="problemmode" value="'.
             $env{'form.problemmode'}.'" />'.
@@ -921,7 +928,7 @@ sub editxmlmode {
 				    }});
 	$result.=$start_page.
 	    &renderpage($request,$file,['no_output_web'],1).
-            '<form '.&Apache::edit::form_change_detection().' name="lonhomework" method="POST" action="'.
+            '<form '.&Apache::edit::form_change_detection().' name="lonhomework" method="post" action="'.
 	    &HTML::Entities::encode($env{'request.uri'},'<>&"').'">'.
 	    &Apache::structuretags::remember_problem_state().'
             <div class="LC_edit_problem_editxml_header">
@@ -1142,8 +1149,8 @@ $errormsg
 <p>
 <b>
 ".&mt("To create a new $extension, select a template from the".
-      " list below. Then click on the \"Create $extension\" button.")."</b>
-</p><form action=\"$url\" method=\"POST\">");
+      " list below. Then click on the \"Create $extension\" button.").'</b>
+</p><form action="'.$url.'" method="post">');
 
 	if (defined($templatelist)) {
 	    $request->print($templatelist);