add a marker line on away

away.patch

--- a/trackbar.pl	2008-05-17 18:39:11.000000000 +0300
+++ b/trackbar.pl	2013-02-14 18:45:35.000000000 +0200
@@ -128,6 +128,20 @@
     }
 );
 
+Irssi::signal_add(
+    'away mode changed' => sub {
+        my $oldwindow = Irssi::active_win();
+
+        if ($oldwindow) {
+            my $line = $oldwindow->view()->get_bookmark('trackbar');
+            $oldwindow->view()->remove_line($line) if defined $line;
+            $oldwindow->print(line($oldwindow->{'width'}), MSGLEVEL_NEVER);
+            $oldwindow->view()->set_bookmark_bottom('trackbar');
+            Irssi::command("redraw");    
+        }
+    }
+);
+
 sub line {
     my $width  = shift;
     my $string = $config{'trackbar_string'};