--- loncom/interface/coursecatalog.pm	2015/05/19 18:07:35	1.87
+++ loncom/interface/coursecatalog.pm	2015/06/09 21:22:55	1.88
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Handler for displaying the course catalog interface
 #
-# $Id: coursecatalog.pm,v 1.87 2015/05/19 18:07:35 raeburn Exp $
+# $Id: coursecatalog.pm,v 1.88 2015/06/09 21:22:55 damieng Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -295,6 +295,7 @@ ENDTOGGJS
                 if (!$deeper) {
                     $alert = &mt('Choose a category to display');
                 }
+                &js_escape(\$alert);
                 $catjs .= <<ENDJS;
 function check_selected() {
     if (document.coursecats.$selitem.options[document.coursecats.$selitem.selectedIndex].value == "") {