--- loncom/interface/loncommon.pm	2012/08/14 15:45:06	1.1092
+++ loncom/interface/loncommon.pm	2012/08/21 01:50:33	1.1093
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # a pile of common routines
 #
-# $Id: loncommon.pm,v 1.1092 2012/08/14 15:45:06 raeburn Exp $
+# $Id: loncommon.pm,v 1.1093 2012/08/21 01:50:33 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -888,10 +888,14 @@ sub check_uncheck_jscript {
 function checkAll(field) {
     if (field.length > 0) {
         for (i = 0; i < field.length; i++) {
-            field[i].checked = true ;
+            if (!field[i].disabled) { 
+                field[i].checked = true;
+            }
         }
     } else {
-        field.checked = true
+        if (!field.disabled) { 
+            field.checked = true;
+        }
     }
 }