--- loncom/interface/loncommon.pm	2018/09/02 21:21:17	1.1075.2.128
+++ loncom/interface/loncommon.pm	2018/09/03 20:43:15	1.1075.2.129
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # a pile of common routines
 #
-# $Id: loncommon.pm,v 1.1075.2.128 2018/09/02 21:21:17 raeburn Exp $
+# $Id: loncommon.pm,v 1.1075.2.129 2018/09/03 20:43:15 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -2262,7 +2262,11 @@ sub select_form {
     if ($onchange) {
         $onchange = ' onchange="'.$onchange.'"';
     }
-    my $selectform = "<select name=\"$name\" size=\"1\"$onchange>\n";
+    my $disabled;
+    if ($readonly) {
+        $disabled = ' disabled="disabled"';
+    }
+    my $selectform = "<select name=\"$name\" size=\"1\"$onchange$disabled>\n";
     my @keys;
     if (exists($hashref->{'select_form_order'})) {
 	@keys=@{$hashref->{'select_form_order'}};