--- loncom/homework/structuretags.pm	2000/12/05 22:07:26	1.20
+++ loncom/homework/structuretags.pm	2000/12/12 22:35:52	1.21
@@ -43,7 +43,15 @@ sub start_problem {
 #adeed vars to the scripting enviroment
   my $expression='$external::part='.$Apache::inputtags::part.';';
   &Apache::run::run($expression,$safeeval);
-
+  if ($target ne 'meta') {
+    my ($date,$passed) = &Apache::lonhomework::check_date("OPEN_DATE",'0');
+    if ( !$passed ) {
+      my $bodytext=&Apache::lonxml::get_all_text("/problem",$$parser[$#$parser]);
+      if ( $target eq "web" ) {
+	return "Problem is not open to be viewed. It opens on $date";
+      }
+    }
+  }
   if ($target eq 'web') {
     # create a page header and exit
     my $args ='';
@@ -187,6 +195,14 @@ sub start_part {
   @Apache::inputtags::responselist = ();
   if ($target eq 'meta') {
     return &Apache::response::mandatory_part_meta;
+  } else {
+    my ($date,$passed) = &Apache::lonhomework::check_date("OPEN_DATE",$id);
+    if ( !$passed ) {
+      my $bodytext=&Apache::lonxml::get_all_text("/part",$$parser[$#$parser]);
+      if ( $target eq "web" ) {
+	return "Part is not open to be viewed. It opens on $date";
+      }
+    }
   }
   return '';
 }