Index: openacs-4/packages/evaluation/www/view/answer-view.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/evaluation/www/view/answer-view.tcl,v
diff -u -r1.3.6.1 -r1.3.6.2
--- openacs-4/packages/evaluation/www/view/answer-view.tcl	19 Aug 2014 07:35:57 -0000	1.3.6.1
+++ openacs-4/packages/evaluation/www/view/answer-view.tcl	19 Aug 2014 07:41:48 -0000	1.3.6.2
@@ -1,8 +1,8 @@
 ad_page_contract {
 } {
-    grade_id:integer
-    task_id:integer
-    {answer_id ""}
+    grade_id:naturalnum,notnull
+    task_id:naturalnum,notnull
+    {answer_id:naturalnum ""}
 } 
 
 set user_id [ad_conn user_id]