--- modules/systeminfo.module.old	2006-09-13 09:07:37.000000000 +0100
+++ modules/systeminfo/systeminfo.module	2007-01-24 12:22:21.194273936 +0000
@@ -236,6 +236,25 @@
   );
   $output .= form_render($database);
 
+  // SESSION
+  $header = array(array('data' => t('Session variables'), 'colspan' => '2'));
+  $rows = array();
+  foreach ($_SESSION as $sess_key => $sess_value) {
+    if (is_array($sess_value)) {
+      $rows[] = array(array('data' => $sess_key, 'class' => 'subheader', 'colspan' => '2'));
+      foreach ($sess_value as $sess_key1 => $sess_value1) {
+        $rows[] = array(array('data' => $sess_key1, 'class' => 'subitem'), $sess_value1);
+      }
+    }
+    $rows[] = array($sess_key, $sess_value);
+  }
+  if (count($rows)) {
+    $sess = array(
+      '#type' => 'item',
+      '#value' => theme('table', $header, $rows, array('class' => 'systeminfo'))
+    );
+    $output .= form_render($sess);
+  }
 
   return $output;
 }