--- loncom/interface/loncommon.pm	2004/01/02 19:23:47	1.169
+++ loncom/interface/loncommon.pm	2004/01/02 21:00:56	1.170
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # a pile of common routines
 #
-# $Id: loncommon.pm,v 1.169 2004/01/02 19:23:47 www Exp $
+# $Id: loncommon.pm,v 1.170 2004/01/02 21:00:56 www Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -235,10 +235,11 @@ of the element the selection from the se
 =cut
 
 sub browser_and_searcher_javascript {
+    my $resurl=&lastresurl();
     return <<END;
     var editbrowser = null;
     function openbrowser(formname,elementname,only,omit,titleelement) {
-        var url = '/res/?';
+        var url = '$resurl/?';
         if (editbrowser == null) {
             url += 'launch=1&';
         }
@@ -283,6 +284,23 @@ sub browser_and_searcher_javascript {
 END
 }
 
+sub lastresurl {
+    if ($ENV{'environment.lastresurl'}) {
+	return $ENV{'environment.lastresurl'}
+    } else {
+	return '/res';
+    }
+}
+
+sub storeresurl {
+    my $resurl=&Apache::lonnet::clutter(shift);
+    unless ($resurl=~/^\/res/) { return 0; }
+    $resurl=~s/\/$//;
+    &Apache::lonnet::put('environment',{'lastresurl' => $resurl});
+    &Apache::lonnet::appenv('environment.lastresurl' => $resurl);
+    return 1;
+}
+
 sub studentbrowser_javascript {
    unless (
             (($ENV{'request.course.id'}) &&