--- loncom/homework/response.pm	2000/11/28 20:11:25	1.10
+++ loncom/homework/response.pm	2000/11/29 00:51:57	1.11
@@ -81,9 +81,11 @@ sub start_responseparam {
     &Apache::lonxml::debug("looking for resource.$Apache::inputtags::part.$name");
     my $value = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.$name");
     &Apache::lonxml::debug("$name has value :$value: and default :$default:");
-    if (!$value) {
+    if ($value eq '') {
+      &Apache::lonxml::debug("defaullting");
       $Apache::inputtags::params{$name}=$default;
     } else {
+      &Apache::lonxml::debug("using value");
       $Apache::inputtags::params{$name}=$value;
     }
     return '';