--- loncom/interface/lonnavmaps.pm	2003/03/08 20:12:32	1.153
+++ loncom/interface/lonnavmaps.pm	2003/03/08 20:52:41	1.154
@@ -2,7 +2,7 @@
 # The LearningOnline Network with CAPA
 # Navigate Maps Handler
 #
-# $Id: lonnavmaps.pm,v 1.153 2003/03/08 20:12:32 bowersj2 Exp $
+# $Id: lonnavmaps.pm,v 1.154 2003/03/08 20:52:41 bowersj2 Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -2730,6 +2730,11 @@ sub extractParts {
         $self->{PARTS} = \@sortedParts;
     }
 
+    # Ensure part 0 is included at the beginning.
+    if ($self->{PARTS}->[0] ne '0') {
+        unshift @{$self->{PARTS}}, '0';
+    }
+
     return;
 }