--- loncom/homework/structuretags.pm	2006/04/28 18:34:22	1.354
+++ loncom/homework/structuretags.pm	2006/06/26 22:33:22	1.359
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA 
 # definition of tags that give a structure to a document
 #
-# $Id: structuretags.pm,v 1.354 2006/04/28 18:34:22 albertel Exp $
+# $Id: structuretags.pm,v 1.359 2006/06/26 22:33:22 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -38,6 +38,9 @@ use Apache::lonlocal;
 use Apache::lonxml;
 use Apache::lonenc();
 use Time::HiRes qw( gettimeofday tv_interval );
+use lib '/home/httpd/lib/perl/';
+use LONCAPA;
+ 
 BEGIN {
     &Apache::lonxml::register('Apache::structuretags',('block','languageblock','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startouttext','endouttext','simpleeditbutton','definetag'));
 }
@@ -160,6 +163,14 @@ sub page_start {
 	    $form_tag_start.=&Apache::edit::form_change_detection();
 	}
 	$form_tag_start.='>';
+
+	my $symb=&Apache::lonnet::symbread();
+	if ($symb =~ /\S/) {
+	    $symb=
+		&HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
+	    $form_tag_start.=
+		'<input type="hidden" name="symb" value="'.$symb.'" />';
+	}
     }
     return ($page_start,$form_tag_start);
 }
@@ -240,7 +251,7 @@ sub problem_edit_header {
        <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" /> <hr />
        <input type="submit" name="submit" accesskey="s" value="'.&mt('Submit Changes and Edit').'" />
        <input type="submit" name="submit" accesskey="v" value="'.&mt('Submit Changes and View').'" /><table><tr><td>'.
-       &Apache::loncommon::help_open_menu('','Problem Editing Help','Problem_Editor_XML_Index','',5,'Authoring',undef,undef,undef,'Problem Editing Help')
+       &Apache::loncommon::help_open_menu('Problem Editing Help','Problem_Editor_XML_Index',5,'Authoring',undef,undef,undef,'Problem Editing Help')
        .'</td></tr></table>'.
        '<table border="0" width="100%"><tr><td bgcolor="#DDDDDD">';
 }
@@ -331,9 +342,11 @@ Feedback Mode:
 }
 
 sub initialize_storage {
+    my ($given_symb) = @_;
     undef(%Apache::lonhomework::results);
     undef(%Apache::lonhomework::history);
-    my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
+    my ($symb,$courseid,$domain,$name) = 
+	&Apache::lonxml::whichuser($given_symb);
     
     # anonymous users (CODEd exams) have no data
     if ($name eq 'anonymous' 
@@ -373,11 +386,13 @@ sub initialize_storage {
 # Will increment totals for attempts, students, and corrects
 # if running user has student role.  
 sub finalize_storage {
+    my ($given_symb) = @_;
     my $result;
     if (%Apache::lonhomework::results) {
 	my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
 	delete(@Apache::lonhomework::results{@remove});
-	my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
+	my ($symb,$courseid,$domain,$name) = 
+	    &Apache::lonxml::whichuser($given_symb);
 	if ($env{'request.state'} eq 'construct' 
 	    || $symb eq ''
 	    || $Apache::lonhomework::type eq 'practice') {
@@ -511,7 +526,9 @@ sub init_problem_globals {
     @Apache::structuretags::whileline=();
     $Apache::lonhomework::scantronmode=0;
     undef($Apache::lonhomework::name);
-
+    undef($Apache::lonhomework::default_type);
+    undef($Apache::lonhomework::type);
+    undef($Apache::lonhomework::problemstatus);
 }
 
 sub reset_problem_globals {
@@ -523,6 +540,11 @@ sub reset_problem_globals {
 #detect if we try to do 2 problems in one file
 #   undef($Apache::lonhomework::parsing_a_problem);
     undef($Apache::lonhomework::name);
+    undef($Apache::lonhomework::default_type);
+    undef($Apache::lonhomework::type);
+    undef($Apache::lonhomework::scantronmode);
+    undef($Apache::lonhomework::problemstatus);
+    undef($Apache::lonhomework::ignore_response_errors);
 }
 
 sub set_problem_state {
@@ -1372,7 +1394,7 @@ sub start_part {
 		    }
 		    if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
 		} elsif ($target eq 'web') {
-		    $result.='<a name="'.&Apache::lonnet::escape($Apache::inputtags::part).'" />';
+		    $result.='<a name="'.&escape($Apache::inputtags::part).'" />';
 		}
 	    }
 	}
@@ -1625,7 +1647,7 @@ sub start_simpleeditbutton {
         $url=~s/\?.*$//;
 	my ($symb) = &Apache::lonxml::whichuser();
 	$result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
-                '<a href="'.$url.'/smpedit?symb='.&Apache::lonnet::escape($symb).'">'.&mt('Edit').'</a> - '.&mt('Note: it can take up to 10 minutes for changes to take effect for all users.').
+                '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'.&mt('Edit').'</a> - '.&mt('Note: it can take up to 10 minutes for changes to take effect for all users.').
 &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
     }
     return $result;