diff --git a/src/IDF/Diff.php b/src/IDF/Diff.php
index 20f7f33..8e91a68 100644
--- a/src/IDF/Diff.php
+++ b/src/IDF/Diff.php
@@ -115,12 +115,10 @@ class IDF_Diff
     {
         $out = '';
         foreach ($this->files as $filename=>$file) {
-            $openPre = '';
-            $closePre = '';
+            $pretty = '';
             $fileinfo = IDF_Views_Source::getMimeType($filename);
             if (IDF_Views_Source::isSupportedExtension($fileinfo[2])) {
-                $openPre = '<pre class="prettyprint">';
-                $closePre = '</pre>';
+                $pretty = ' prettyprint';
             }
             $out .= "\n".'<table class="diff" summary="">'."\n";
             $out .= '<tr id="diff-'.md5($filename).'"><th colspan="3">'.Pluf_esc($filename).'</th></tr>'."\n";
@@ -135,7 +133,7 @@ class IDF_Diff
                         $class = 'diff-a';
                     }
                     $line_content = self::padLine(Pluf_esc($line[2]));
-                    $out .= sprintf('<tr class="diff-line"><td class="diff-lc">%s</td><td class="diff-lc">%s</td><td class="%s mono">%s%s%s</td></tr>'."\n", $line[0], $line[1], $class, $openPre, $line_content, $closePre);
+                    $out .= sprintf('<tr class="diff-line"><td class="diff-lc">%s</td><td class="diff-lc">%s</td><td class="%s%s mono">%s</td></tr>'."\n", $line[0], $line[1], $class, $pretty, $line_content);
                 }
                 if (count($file['chunks']) > $cc)
                 $out .= '<tr class="diff-next"><td>...</td><td>...</td><td>&nbsp;</td></tr>'."\n";
diff --git a/src/IDF/Views/Source.php b/src/IDF/Views/Source.php
index 3c9775b..1e228dd 100644
--- a/src/IDF/Views/Source.php
+++ b/src/IDF/Views/Source.php
@@ -384,17 +384,15 @@ class IDF_Views_Source
 
     public static function highLight($fileinfo, $content)
     {
-        $openPre = '';
-        $closePre = '';
+        $pretty = '';
         if (IDF_Views_Source::isSupportedExtension($fileinfo[2])) {
-            $openPre = '<pre class="prettyprint">';
-            $closePre = '</pre>';
+            $pretty = ' prettyprint';
         }
         $table = array();
         $i = 1;
         foreach (preg_split("/\015\012|\015|\012/", $content) as $line) {
             $table[] = '<tr class="c-line"><td class="code-lc" id="L'.$i.'"><a href="#L'.$i.'">'.$i.'</a></td>'
-                .'<td class="code mono">'.$openPre.IDF_Diff::padLine(Pluf_esc($line)).$closePre.'</td></tr>';
+                .'<td class="code mono'.$pretty.'">'.IDF_Diff::padLine(Pluf_esc($line)).'</td></tr>';
             $i++;
         }
         return Pluf_Template::markSafe(implode("\n", $table));
diff --git a/www/media/idf/js/prettify.js b/www/media/idf/js/prettify.js
index 6a18f43..05e6818 100644
--- a/www/media/idf/js/prettify.js
+++ b/www/media/idf/js/prettify.js
@@ -31,7 +31,8 @@
  * 1) include this source file in an html page via
  * <script type="text/javascript" src="/path/to/prettify.js"></script>
  * 2) define style rules.  See the example page for examples.
- * 3) mark the <pre> and <code> tags in your source with class=prettyprint.
+ * 3) mark the <td>, <pre> and <code> tags in your source 
+ *    with class=prettyprint.
  *    You can also use the (html deprecated) <xmp> tag, but the pretty printer
  *    needs to do more substantial DOM manipulations to support that, so some
  *    css styles may not be preserved.
@@ -1273,6 +1274,7 @@ function prettyPrint() {
   var codeSegments = [
       document.getElementsByTagName('pre'),
       document.getElementsByTagName('code'),
+      document.getElementsByTagName('td'),
       document.getElementsByTagName('xmp') ];
   var elements = [];
   for (var i = 0; i < codeSegments.length; ++i) {