--- loncom/homework/structuretags.pm	2012/05/28 20:31:11	1.507
+++ loncom/homework/structuretags.pm	2013/06/05 15:37:26	1.512.2.3
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA 
 # definition of tags that give a structure to a document
 #
-# $Id: structuretags.pm,v 1.507 2012/05/28 20:31:11 raeburn Exp $
+# $Id: structuretags.pm,v 1.512.2.3 2013/06/05 15:37:26 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -379,10 +379,10 @@ sub page_start {
     } elsif (!defined($found{'body'}) 
 	     && $env{'request.state'} eq 'construct') {
 	if ($target eq 'web' || $target eq 'edit') {
-        # Breadcrumbs for Construction Space
+        # Breadcrumbs for Authoring Space
         &Apache::lonhtmlcommon::clear_breadcrumbs();
         &Apache::lonhtmlcommon::add_breadcrumb({
-            'text'  => 'Construction Space',
+            'text'  => 'Authoring Space',
             'href'  => &Apache::loncommon::authorspace($env{'request.uri'}),
         });
         # breadcrumbs (and tools) will be created 
@@ -453,7 +453,6 @@ sub page_start {
         }
 	$form_tag_start.='>'."\n";
 
-	my $symb=&Apache::lonnet::symbread();
 	if ($symb =~ /\S/) {
 	    $symb=
 		&HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
@@ -1160,6 +1159,7 @@ sub start_problem {
     &Apache::run::run($expression,$safeeval);
     my $status;
     my $accessmsg;
+    my $resource_due;
 
     my $name= &get_resource_name($parstack,$safeeval);
     my ($result,$form_tag_start,$slot_name,$slot);
@@ -1189,14 +1189,6 @@ sub start_problem {
     if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
 	$target eq 'tex') {
 
-        if ($status eq 'CAN_ANSWER') {
-            my $resource_due =  &Apache::lonhomework::due_date(0, $env{'request.symb'});
-            my $time_left = $resource_due - time();
-            if ($resource_due && ($time_left > 0) && ($target eq 'web')) {
-                $result .= &Apache::lonhtmlcommon::set_due_date($resource_due);
-            }
-        }
-
 	#handle rand seed in construction space
 	my $rndseed=&setup_rndseed($safeeval,$target);
 	my ($symb)=&Apache::lonnet::whichuser();
@@ -1305,13 +1297,35 @@ sub start_problem {
 							'problem');
 	    }
 	} elsif ($target eq 'web') {
-	    if ($status eq 'CAN_ANSWER' 
-		&& $slot_name ne ''
-		&& $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
-		# unproctored slot access, self checkin
-		&Apache::bridgetask::check_in('problem',undef,undef,
-					      $slot_name);
-	    }
+	    if ($status eq 'CAN_ANSWER') {
+                $resource_due = &Apache::lonhomework::due_date(0, $env{'request.symb'});
+                if ($slot_name ne '') {
+                    my $checked_in =
+                        $Apache::lonhomework::history{'resource.0.checkedin'};
+                    if ($checked_in eq '') {
+                        # unproctored slot access, self checkin
+                        &Apache::bridgetask::check_in('problem',undef,undef,
+                                                      $slot_name);
+                        $checked_in =
+                            $Apache::lonhomework::results{"resource.0.checkedin"};
+                    }
+                    if ((ref($slot) eq 'HASH') && ($checked_in ne '')) {
+                        if ($slot->{'starttime'} < time()) {
+                            if (!$resource_due) {
+                                $resource_due = $slot->{'endtime'};
+                            } elsif ($slot->{'endtime'} < $resource_due) {
+                                $resource_due = $slot->{'endtime'};
+                            }
+                        }
+                    }
+                }
+                if ($resource_due) {
+                    my $time_left = $resource_due - time();
+                    if ($resource_due && ($time_left > 0) && ($target eq 'web')) {
+                        $result .= &Apache::lonhtmlcommon::set_due_date($resource_due);
+                    }
+                }
+            }
 	    $result.="\n $form_tag_start \t".	
 	      '<input type="hidden" name="submitted" value="yes" />';
 	    # create a page header and exit
@@ -2529,9 +2543,9 @@ sub end_startouttext {
                  .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
                  .&Apache::edit::deletelist($target,$token)
                  .'</span></td>'
-	         .'<td align="left"><span id="math_'.$areaid.'" />'
+	         .'<td align="left"><span id="math_'.$areaid.'">'
 		 .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
-		 .'<span></td>'
+		 .'</span></td>'
 		 .'<td>'
 		 .&Apache::edit::insertlist($target,$token)
 		 .'</td>'