diff --git a/html/pages/device/showconfig.inc.php b/html/pages/device/showconfig.inc.php
index 175aa66ee..3b349e9a2 100644
--- a/html/pages/device/showconfig.inc.php
+++ b/html/pages/device/showconfig.inc.php
@@ -4,6 +4,7 @@ include("includes/geshi/geshi.php");
 
 if ($_SESSION['userlevel'] >= "7")
 {
+  
   if (!is_array($config['rancid_configs'])) { $config['rancid_configs'] = array($config['rancid_configs']); }
 
   foreach ($config['rancid_configs'] as $configs)
@@ -11,10 +12,59 @@ if ($_SESSION['userlevel'] >= "7")
     if ($configs[strlen($configs)-1] != '/') { $configs .= '/'; }
     if (is_file($configs . $device['hostname'])) { $file = $configs . $device['hostname']; }
   }
+  
+  echo('<div style="clear: both;">');
 
-  $fh = fopen($file, 'r') or die("Can't open file");
-  $text = fread($fh, filesize($file));
-  fclose($fh);
+  print_optionbar_start('', '');
+
+  echo("<span style='font-weight: bold;'>Config</span> &#187; ");
+  
+  if (!$_GET['opta']) {
+    echo('<span class="pagemenu-selected">');
+    echo("<a href='device/".$device['device_id']."/showconfig/'> Latest</a>");
+    echo("</span>");
+  } else {
+    echo("<a href='device/".$device['device_id']."/showconfig/'> Latest</a>");
+  }
+  
+  if (function_exists('svn_log')) {
+    
+    $sep     = " | ";
+    $svnlogs = svn_log($file, SVN_REVISION_HEAD, NULL, 10);
+    $revlist = array();
+    
+    foreach ($svnlogs as $svnlog) {
+      
+      echo($sep);
+      $revlist[] = $svnlog["rev"];
+      
+      if ($_GET['opta'] == $svnlog["rev"]) { echo('<span class="pagemenu-selected">'); }
+    
+      echo("<a href='device/".$device['device_id']."/showconfig/" . $svnlog["rev"] .  "/'> r" . $svnlog["rev"] ."</a>");
+      if ($_GET['opta'] == $svnlog["rev"]) { echo("</span>");  }
+     
+      $sep = " | ";
+    }
+  }
+  
+  print_optionbar_end();
+  
+  if (function_exists('svn_log') && in_array($_GET['opta'], $revlist)) {
+    list($diff, $errors) = svn_diff($file, $_GET['opta']-1, $file, $_GET['opta']);
+    if (!$diff) {
+      $text = "No Difference";
+    } else {
+      $text = "";
+      while (!feof($diff)) { $text .= fread($diff, 8192); }
+      fclose($diff);
+      fclose($errors);
+    }
+    
+  } else {
+    $fh = fopen($file, 'r') or die("Can't open file");
+    $text = fread($fh, filesize($file));
+    fclose($fh);
+  }
 
   if ($config['rancid_ignorecomments'])
   {
@@ -33,5 +83,4 @@ if ($_SESSION['userlevel'] >= "7")
   #$geshi->set_line_style('color: #999999');
   echo($geshi->parse_code());
 }
-
 ?>
\ No newline at end of file