diff --git a/user_guide/helpers/html_helper.html b/user_guide/helpers/html_helper.html
index 17157bb..e32cbc9 100644
--- a/user_guide/helpers/html_helper.html
+++ b/user_guide/helpers/html_helper.html
@@ -12,7 +12,7 @@
 <script type="text/javascript" src="../nav/moo.fx.js"></script>
 <script type="text/javascript">
 window.onload = function() {
-	myHeight = new fx.Height('nav', {duration: 400}); 
+	myHeight = new fx.Height('nav', {duration: 400});
 	myHeight.hide();
 }
 </script>