--- loncom/interface/lonnavmaps.pm	2003/06/18 15:14:23	1.207
+++ loncom/interface/lonnavmaps.pm	2003/06/23 15:53:35	1.209
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Navigate Maps Handler
 #
-# $Id: lonnavmaps.pm,v 1.207 2003/06/18 15:14:23 bowersj2 Exp $
+# $Id: lonnavmaps.pm,v 1.209 2003/06/23 15:53:35 bowersj2 Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -1499,6 +1499,16 @@ sub render {
         }
     } continue {
         $curRes = $it->next();
+
+	if ($r) {
+	    # If we have the connection, make sure the user is still connected
+	    my $c = $r->connection;
+	    if ($c->aborted()) {
+		Apache::lonnet::logthis("navmaps aborted");
+		# Who cares what we do, nobody will see it anyhow.
+		return '';
+	    }
+	}
     }
     
     # Print out the part that jumps to #curloc if it exists
@@ -2216,11 +2226,6 @@ sub min {
     if ($a < $b) { return $a; } else { return $b; }
 }
 
-# In the CVS repository, documentation of this algorithm is included 
-# in /doc/lonnavdocs, as a PDF and .tex source. Markers like **1**
-# will reference the same location in the text as the part of the
-# algorithm is running through.
-
 sub new {
     # magic invocation to create a class instance
     my $proto = shift;
@@ -2276,6 +2281,9 @@ sub new {
     # that isn't just a redirector.
     my $resource; my $resourceCount = 0;
 
+    # Documentation on this algorithm can be found in the CVS repository at 
+    # /docs/lonnavdocs; these "**#**" markers correspond to documentation
+    # in that file.
     # **1**
 
     foreach my $pass (@iterations) {