--- loncom/interface/coursecatalog.pm	2011/01/25 09:46:43	1.58.4.7
+++ loncom/interface/coursecatalog.pm	2013/11/21 16:34:23	1.58.4.9
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Handler for displaying the course catalog interface
 #
-# $Id: coursecatalog.pm,v 1.58.4.7 2011/01/25 09:46:43 raeburn Exp $
+# $Id: coursecatalog.pm,v 1.58.4.9 2013/11/21 16:34:23 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -66,13 +66,20 @@ sub handler {
     }
     my $formname = 'coursecatalog';
     if ($env{'form.showdom'} ne '') {
+        $env{'form.showdom'} = &LONCAPA::clean_domain($env{'form.showdom'});
         if (&Apache::lonnet::domain($env{'form.showdom'}) ne '') {
             $codedom = $env{'form.showdom'};
+        } else {
+            $env{'form.showdom'} = '';
         }
     }
     my $domdesc = &Apache::lonnet::domain($codedom,'description');
     &Apache::lonhtmlcommon::clear_breadcrumbs();
 
+    if ($env{'form.catalog_maxdepth'} ne '') {
+        $env{'form.catalog_maxdepth'} =~ s{\D}{}g;
+    }
+
     my %domconfig =
         &Apache::lonnet::get_dom('configuration',['coursecategories'],$codedom);
     my (@cats,@trails,%allitems,%idx,@jsarray,%subcathash,$cathash);
@@ -284,7 +291,6 @@ sub instcode_course_selector {
         $r->print('<input type="hidden" name="coursenum" value="" />'."\n".
                   '<input type="hidden" name="sortby" value="" />'."\n".
                   '<input type="hidden" name="state" value="listing" />'."\n".
-                  '<input type="hidden" name="form.currcat_0" value="instcode::0" />'."\n".
                   '<input type="submit" name="catalogfilter" value="'.
                   &mt('Display courses').'" />'.
                   '<input type="hidden" name="numtitles" value="'.$numtitles.