--- loncom/interface/lonhtmlcommon.pm	2013/07/22 11:46:23	1.352
+++ loncom/interface/lonhtmlcommon.pm	2013/11/17 14:40:31	1.353
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # a pile of common html routines
 #
-# $Id: lonhtmlcommon.pm,v 1.352 2013/07/22 11:46:23 raeburn Exp $
+# $Id: lonhtmlcommon.pm,v 1.353 2013/11/17 14:40:31 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -2938,7 +2938,7 @@ ENDSCRIPT
 ##############################################
 
 sub resize_scrollbox_js {
-    my ($context,$tabidstr) = @_;
+    my ($context,$tabidstr,$tid) = @_;
     my (%names,$paddingwfrac,$offsetwfrac,$offsetv,$minw,$minv);
     if ($context eq 'docs') {
         %names = (
@@ -2974,9 +2974,11 @@ window.onresize=callResize;
 
 ';
     if ($context eq 'docs') {
-        $output .= '
-var activeTab;
-';
+        if ($env{'form.active'}) {
+            $output .= "\nvar activeTab = '$env{'form.active'}$tid';\n";
+        } else {
+            $output .= "\nvar activeTab = '';\n";
+        }
     }
     $output .=  <<"FIRST";