--- loncom/homework/essayresponse.pm	2009/01/01 16:45:32	1.97
+++ loncom/homework/essayresponse.pm	2009/01/21 16:17:35	1.99
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # essay (ungraded) style responses
 #
-# $Id: essayresponse.pm,v 1.97 2009/01/01 16:45:32 raeburn Exp $
+# $Id: essayresponse.pm,v 1.99 2009/01/21 16:17:35 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -267,7 +267,7 @@ sub file_submission {
         }
         my $uploadedfiletypes= 
             &Apache::lonnet::EXT("resource.$part".'_'."$id.uploadedfiletypes");
-        if ($uploadedfiletypes) {
+        if ($uploadedfiletypes ne '') {
             $uploadedfiletypes=~s/[^\w\,]//g;
             $uploadedfiletypes=','.$uploadedfiletypes.',';
             foreach my $file (@submitted_files) {
@@ -281,6 +281,10 @@ sub file_submission {
                     }
                 }
             }
+        } else {
+            foreach my $file (@submitted_files) {
+                push(@acceptable_files,$file);
+            }
         }
         my $maxfilesize=&Apache::lonnet::EXT("resource.$part".'_'."$id.maxfilesize");
         if (!$maxfilesize) {
@@ -378,7 +382,7 @@ sub file_submission {
 	    $Apache::lonhomework::results{"resource.$part.$id.uploadedurl"}=
 		&Apache::lonnet::userfileupload('HWFILE'.$jspart.'_'.$id,undef,
 						$subdir);
-            &Apache::lonnet::delenv($env{'form.HWFILE'.$jspart.'_'.$id});
+            delete($env{'form.HWFILE'.$jspart.'_'.$id});
 	}
     } elsif ($which eq 'portfiles' &&
 	     $Apache::lonhomework::history{"resource.$part.$id.$which"}) {
@@ -390,9 +394,9 @@ sub file_submission {
 
 sub delete_form_items {
     my ($jspart,$id) = @_;
-    &Apache::lonnet::delenv($env{'form.HWFILE'.$jspart.'_'.$id.'.filename'});
-    &Apache::lonnet::delenv($env{'form.HWFILE'.$jspart.'_'.$id.'.mimetype'});
-    &Apache::lonnet::delenv($env{'form.HWFILE'.$jspart.'_'.$id});
+    delete($env{'form.HWFILE'.$jspart.'_'.$id.'.filename'});
+    delete($env{'form.HWFILE'.$jspart.'_'.$id.'.mimetype'});
+    delete($env{'form.HWFILE'.$jspart.'_'.$id});
 }