--- loncom/lonnet/perl/lonnet.pm	2006/07/19 19:44:52	1.762
+++ loncom/lonnet/perl/lonnet.pm	2006/07/20 03:00:45	1.764
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # TCP networking package
 #
-# $Id: lonnet.pm,v 1.762 2006/07/19 19:44:52 raeburn Exp $
+# $Id: lonnet.pm,v 1.764 2006/07/20 03:00:45 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -5155,6 +5155,7 @@ sub devalidatecourseresdata {
     &devalidate_cache_new('courseres',$hashid);
 }
 
+
 # --------------------------------------------------- Course Resourcedata Query
 
 sub get_courseresdata {
@@ -5876,6 +5877,17 @@ sub metadata_generate_part0 {
     }
 }
 
+# ------------------------------------------------------ Devalidate title cache
+
+sub devalidate_title_cache {
+    my ($url)=@_;
+    if (!$env{'request.course.id'}) { return; }
+    my $symb=&symbread($url);
+    if (!$symb) { return; }
+    my $key=$env{'request.course.id'}."\0".$symb;
+    &devalidate_cache_new('title',$key);
+}
+
 # ------------------------------------------------- Get the title of a resource
 
 sub gettitle {