--- loncom/homework/structuretags.pm	2002/11/06 23:05:02	1.132
+++ loncom/homework/structuretags.pm	2002/11/10 15:39:37	1.134
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA 
 # definition of tags that give a structure to a document
 #
-# $Id: structuretags.pm,v 1.132 2002/11/06 23:05:02 albertel Exp $
+# $Id: structuretags.pm,v 1.134 2002/11/10 15:39:37 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -29,6 +29,7 @@
 # 6/26/2001 fixed extra web display at end of <web></web> tags
 # 8/17,8/18,8/20 Gerd Kortemeyer
 
+
 package Apache::structuretags; 
 
 use strict;
@@ -100,6 +101,14 @@ sub page_start {
       }
     }
     $body_tag_start.='>';
+    if ($target eq 'web' && $ENV{'request.state'} ne 'construct') {
+	my ($symb)=&Apache::lonxml::whichuser();
+	if ($symb eq '') {
+	    my $help = &Apache::loncommon::help_open_topic("Ambiguous_Reference");
+	    $help="Browsing or <a href=\"/adm/ambiguous\">ambiguous</a> reference, submissions ignored $help<br />";
+	    $body_tag_start.=$help;
+	}
+    }
   }
   my $form_tag_start;
   if (!defined($found{'form'})) {
@@ -656,6 +665,19 @@ sub start_part {
 	}
       }
     }
+  } elsif ($target eq 'edit') {
+      $result.=&Apache::edit::tag_start($target,$token);
+      $result.=&Apache::edit::text_arg('Part ID:','id',$token).
+	  &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
+	      &Apache::edit::end_row().&Apache::edit::start_spanning_row();
+
+  } elsif ($target eq 'modified') {
+      my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,
+						   'id');
+      if ($constructtag) {
+	  $result = &Apache::edit::rebuild_tag($token);
+	  $result.=&Apache::edit::handle_insert();
+      }
   }
   return $result;
 }
@@ -681,7 +703,8 @@ sub start_preduedate {
   my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
   if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || $target eq 'tex') {
     if ($Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
-	$Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER' ) {
+	$Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER' && 
+        $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
       &Apache::lonxml::get_all_text("/preduedate",$$parser[$#$parser]);
     }
   }