--- bbcode-filter.inc~	2008-11-30 14:20:08.000000000 +0530
+++ bbcode-filter.inc	2010-04-04 20:11:59.459557194 +0530
@@ -214,8 +214,12 @@
     '[br]'   => '<br class="bb-br" />',
     // Force space
     '[sp]'   => '&nbsp;',
+    // Indent Start
+    '[indent]' => '<div style="padding-left: 20px;">',
+    // Indent End
+    '[/indent]' => '</div>',   
   );
-  $body = str_replace(array_keys($str), array_values($str), $body);
+  $body = str_ireplace(array_keys($str), array_values($str), $body);
 
   // We cannot evaluate the variable in callback function because 
   // there is no way to pass the $format variable