Index: lams_tool_nb/web/WEB-INF/web.xml
===================================================================
diff -u -rc277bb1c30c1283b5f66c6f651855c51a5f87bc5 -re2a59c50e8e06ff895161c92e5d9eb74aadc446a
--- lams_tool_nb/web/WEB-INF/web.xml	(.../web.xml)	(revision c277bb1c30c1283b5f66c6f651855c51a5f87bc5)
+++ lams_tool_nb/web/WEB-INF/web.xml	(.../web.xml)	(revision e2a59c50e8e06ff895161c92e5d9eb74aadc446a)
@@ -145,10 +145,18 @@
    <!ELEMENT mime-mapping (extension, mime-type)>
    -->
 
-  <error-page>
-	<error-code>403</error-code>
-	<location>/403.html</location>
-</error-page> 
+      <error-page>
+        <error-code>500</error-code>
+        <location>/error.jsp</location>
+    </error-page>
+    <error-page>
+        <error-code>403</error-code>
+        <location>/403.jsp</location>
+    </error-page>
+    <error-page>
+        <error-code>404</error-code>
+        <location>/404.jsp</location>
+    </error-page>
 
   	<jsp-config>
 		<!--  ======================================================== -->