diff --git a/user_guide/helpers/array_helper.html b/user_guide/helpers/array_helper.html
index e67a9f2..ffe796c 100644
--- a/user_guide/helpers/array_helper.html
+++ b/user_guide/helpers/array_helper.html
@@ -24,7 +24,7 @@
 
 <!-- START NAVIGATION -->
 <div id="nav"><div id="nav_inner"><script type="text/javascript">create_menu('../');</script></div></div>
-<div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="../images/nav_toggle.jpg" width="153" height="44" border="0" title="Toggle Table of Contents" alt="Toggle Table of Contents" /></a></div>
+<div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="../images/nav_toggle_darker.jpg" width="154" height="43" border="0" title="Toggle Table of Contents" alt="Toggle Table of Contents" /></a></div>
 <div id="masthead">
 <table cellpadding="0" cellspacing="0" border="0" style="width:100%">
 <tr>
diff --git a/user_guide/helpers/compatibility_helper.html b/user_guide/helpers/compatibility_helper.html
index 7b9d296..d98332a 100644
--- a/user_guide/helpers/compatibility_helper.html
+++ b/user_guide/helpers/compatibility_helper.html
@@ -24,7 +24,7 @@
 
 <!-- START NAVIGATION -->
 <div id="nav"><div id="nav_inner"><script type="text/javascript">create_menu('../');</script></div></div>
-<div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="../images/nav_toggle.jpg" width="153" height="44" border="0" title="Toggle Table of Contents" alt="Toggle Table of Contents" /></a></div>
+<div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="../images/nav_toggle_darker.jpg" width="154" height="43" border="0" title="Toggle Table of Contents" alt="Toggle Table of Contents" /></a></div>
 <div id="masthead">
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 <tr>
diff --git a/user_guide/helpers/cookie_helper.html b/user_guide/helpers/cookie_helper.html
index 85d4cd0..456a95e 100644
--- a/user_guide/helpers/cookie_helper.html
+++ b/user_guide/helpers/cookie_helper.html
@@ -24,7 +24,7 @@
 
 <!-- START NAVIGATION -->
 <div id="nav"><div id="nav_inner"><script type="text/javascript">create_menu('../');</script></div></div>
-<div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="../images/nav_toggle.jpg" width="153" height="44" border="0" title="Toggle Table of Contents" alt="Toggle Table of Contents" /></a></div>
+<div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="../images/nav_toggle_darker.jpg" width="154" height="43" border="0" title="Toggle Table of Contents" alt="Toggle Table of Contents" /></a></div>
 <div id="masthead">
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diff --git a/user_guide/helpers/date_helper.html b/user_guide/helpers/date_helper.html
index b626458..0e174cc 100644
--- a/user_guide/helpers/date_helper.html
+++ b/user_guide/helpers/date_helper.html
@@ -24,7 +24,7 @@
 
 <!-- START NAVIGATION -->
 <div id="nav"><div id="nav_inner"><script type="text/javascript">create_menu('../');</script></div></div>
-<div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="../images/nav_toggle.jpg" width="153" height="44" border="0" title="Toggle Table of Contents" alt="Toggle Table of Contents" /></a></div>
+<div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="../images/nav_toggle_darker.jpg" width="154" height="43" border="0" title="Toggle Table of Contents" alt="Toggle Table of Contents" /></a></div>
 <div id="masthead">
 <table cellpadding="0" cellspacing="0" border="0" style="width:100%">
 <tr>
diff --git a/user_guide/helpers/directory_helper.html b/user_guide/helpers/directory_helper.html
index b89e8c8..9744429 100644
--- a/user_guide/helpers/directory_helper.html
+++ b/user_guide/helpers/directory_helper.html
@@ -24,7 +24,7 @@
 
 <!-- START NAVIGATION -->
 <div id="nav"><div id="nav_inner"><script type="text/javascript">create_menu('../');</script></div></div>
-<div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="../images/nav_toggle.jpg" width="153" height="44" border="0" title="Toggle Table of Contents" alt="Toggle Table of Contents" /></a></div>
+<div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="../images/nav_toggle_darker.jpg" width="154" height="43" border="0" title="Toggle Table of Contents" alt="Toggle Table of Contents" /></a></div>
 <div id="masthead">
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diff --git a/user_guide/helpers/download_helper.html b/user_guide/helpers/download_helper.html
index 11eb451..42e8aba 100644
--- a/user_guide/helpers/download_helper.html
+++ b/user_guide/helpers/download_helper.html
@@ -24,7 +24,7 @@
 
 <!-- START NAVIGATION -->
 <div id="nav"><div id="nav_inner"><script type="text/javascript">create_menu('../');</script></div></div>
-<div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="../images/nav_toggle.jpg" width="153" height="44" border="0" title="Toggle Table of Contents" alt="Toggle Table of Contents" /></a></div>
+<div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="../images/nav_toggle_darker.jpg" width="154" height="43" border="0" title="Toggle Table of Contents" alt="Toggle Table of Contents" /></a></div>
 <div id="masthead">
 <table cellpadding="0" cellspacing="0" border="0" style="width:100%">
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diff --git a/user_guide/helpers/email_helper.html b/user_guide/helpers/email_helper.html
index 74f6a3a..d8e522a 100644
--- a/user_guide/helpers/email_helper.html
+++ b/user_guide/helpers/email_helper.html
@@ -24,7 +24,7 @@
 
 <!-- START NAVIGATION -->
 <div id="nav"><div id="nav_inner"><script type="text/javascript">create_menu('../');</script></div></div>
-<div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="../images/nav_toggle.jpg" width="153" height="44" border="0" title="Toggle Table of Contents" alt="Toggle Table of Contents" /></a></div>
+<div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="../images/nav_toggle_darker.jpg" width="154" height="43" border="0" title="Toggle Table of Contents" alt="Toggle Table of Contents" /></a></div>
 <div id="masthead">
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diff --git a/user_guide/helpers/file_helper.html b/user_guide/helpers/file_helper.html
index b16cde5..05700ae 100644
--- a/user_guide/helpers/file_helper.html
+++ b/user_guide/helpers/file_helper.html
@@ -23,7 +23,7 @@
 
 <!-- START NAVIGATION -->
 <div id="nav"><div id="nav_inner"><script type="text/javascript">create_menu('../');</script></div></div>
-<div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="../images/nav_toggle.jpg" width="153" height="44" border="0" title="Toggle Table of Contents" alt="Toggle Table of Contents" /></a></div>
+<div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="../images/nav_toggle_darker.jpg" width="154" height="43" border="0" title="Toggle Table of Contents" alt="Toggle Table of Contents" /></a></div>
 <div id="masthead">
 <table cellpadding="0" cellspacing="0" border="0" style="width:100%">
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diff --git a/user_guide/helpers/form_helper.html b/user_guide/helpers/form_helper.html
index 839f725..76ded1e 100644
--- a/user_guide/helpers/form_helper.html
+++ b/user_guide/helpers/form_helper.html
@@ -24,7 +24,7 @@
 
 <!-- START NAVIGATION -->
 <div id="nav"><div id="nav_inner"><script type="text/javascript">create_menu('../');</script></div></div>
-<div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="../images/nav_toggle.jpg" width="153" height="44" border="0" title="Toggle Table of Contents" alt="Toggle Table of Contents" /></a></div>
+<div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="../images/nav_toggle_darker.jpg" width="154" height="43" border="0" title="Toggle Table of Contents" alt="Toggle Table of Contents" /></a></div>
 <div id="masthead">
 <table cellpadding="0" cellspacing="0" border="0" style="width:100%">
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diff --git a/user_guide/helpers/html_helper.html b/user_guide/helpers/html_helper.html
index 6289840..aff896a 100644
--- a/user_guide/helpers/html_helper.html
+++ b/user_guide/helpers/html_helper.html
@@ -24,7 +24,7 @@
 
 <!-- START NAVIGATION -->
 <div id="nav"><div id="nav_inner"><script type="text/javascript">create_menu('../');</script></div></div>
-<div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="../images/nav_toggle.jpg" width="153" height="44" border="0" title="Toggle Table of Contents" alt="Toggle Table of Contents" /></a></div>
+<div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="../images/nav_toggle_darker.jpg" width="154" height="43" border="0" title="Toggle Table of Contents" alt="Toggle Table of Contents" /></a></div>
 <div id="masthead">
 <table cellpadding="0" cellspacing="0" border="0" style="width:100%">
 <tr>
diff --git a/user_guide/helpers/inflector_helper.html b/user_guide/helpers/inflector_helper.html
index 4b06140..4a78287 100644
--- a/user_guide/helpers/inflector_helper.html
+++ b/user_guide/helpers/inflector_helper.html
@@ -24,7 +24,7 @@
 
 <!-- START NAVIGATION -->
 <div id="nav"><div id="nav_inner"><script type="text/javascript">create_menu('../');</script></div></div>
-<div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="../images/nav_toggle.jpg" width="153" height="44" border="0" title="Toggle Table of Contents" alt="Toggle Table of Contents" /></a></div>
+<div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="../images/nav_toggle_darker.jpg" width="154" height="43" border="0" title="Toggle Table of Contents" alt="Toggle Table of Contents" /></a></div>
 <div id="masthead">
 <table cellpadding="0" cellspacing="0" border="0" style="width:100%">
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diff --git a/user_guide/helpers/language_helper.html b/user_guide/helpers/language_helper.html
index 53a6114..7bf1068 100644
--- a/user_guide/helpers/language_helper.html
+++ b/user_guide/helpers/language_helper.html
@@ -24,7 +24,7 @@
 
 <!-- START NAVIGATION -->
 <div id="nav"><div id="nav_inner"><script type="text/javascript">create_menu('../');</script></div></div>
-<div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="../images/nav_toggle.jpg" width="153" height="44" border="0" title="Toggle Table of Contents" alt="Toggle Table of Contents" /></a></div>
+<div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="../images/nav_toggle_darker.jpg" width="154" height="43" border="0" title="Toggle Table of Contents" alt="Toggle Table of Contents" /></a></div>
 <div id="masthead">
 <table cellpadding="0" cellspacing="0" border="0" style="width:100%">
 <tr>
diff --git a/user_guide/helpers/number_helper.html b/user_guide/helpers/number_helper.html
index 929c968..8d20cca 100644
--- a/user_guide/helpers/number_helper.html
+++ b/user_guide/helpers/number_helper.html
@@ -24,7 +24,7 @@
 
 <!-- START NAVIGATION -->
 <div id="nav"><div id="nav_inner"><script type="text/javascript">create_menu('../');</script></div></div>
-<div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="../images/nav_toggle.jpg" width="153" height="44" border="0" title="Toggle Table of Contents" alt="Toggle Table of Contents" /></a></div>
+<div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="../images/nav_toggle_darker.jpg" width="154" height="43" border="0" title="Toggle Table of Contents" alt="Toggle Table of Contents" /></a></div>
 <div id="masthead">
 <table cellpadding="0" cellspacing="0" border="0" style="width:100%">
 <tr>
diff --git a/user_guide/helpers/path_helper.html b/user_guide/helpers/path_helper.html
index 6de4a46..ceb509c 100644
--- a/user_guide/helpers/path_helper.html
+++ b/user_guide/helpers/path_helper.html
@@ -23,7 +23,7 @@
 
 <!-- START NAVIGATION -->
 <div id="nav"><div id="nav_inner"><script type="text/javascript">create_menu('../');</script></div></div>
-<div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="../images/nav_toggle.jpg" width="153" height="44" border="0" title="Toggle Table of Contents" alt="Toggle Table of Contents" /></a></div>
+<div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="../images/nav_toggle_darker.jpg" width="154" height="43" border="0" title="Toggle Table of Contents" alt="Toggle Table of Contents" /></a></div>
 <div id="masthead">
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diff --git a/user_guide/helpers/security_helper.html b/user_guide/helpers/security_helper.html
index d56f7db..627d9f9 100644
--- a/user_guide/helpers/security_helper.html
+++ b/user_guide/helpers/security_helper.html
@@ -24,7 +24,7 @@
 
 <!-- START NAVIGATION -->
 <div id="nav"><div id="nav_inner"><script type="text/javascript">create_menu('../');</script></div></div>
-<div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="../images/nav_toggle.jpg" width="153" height="44" border="0" title="Toggle Table of Contents" alt="Toggle Table of Contents" /></a></div>
+<div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="../images/nav_toggle_darker.jpg" width="154" height="43" border="0" title="Toggle Table of Contents" alt="Toggle Table of Contents" /></a></div>
 <div id="masthead">
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diff --git a/user_guide/helpers/smiley_helper.html b/user_guide/helpers/smiley_helper.html
index fa7bc24..fd337c5 100644
--- a/user_guide/helpers/smiley_helper.html
+++ b/user_guide/helpers/smiley_helper.html
@@ -24,7 +24,7 @@
 
 <!-- START NAVIGATION -->
 <div id="nav"><div id="nav_inner"><script type="text/javascript">create_menu('../');</script></div></div>
-<div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="../images/nav_toggle.jpg" width="153" height="44" border="0" title="Toggle Table of Contents" alt="Toggle Table of Contents" /></a></div>
+<div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="../images/nav_toggle_darker.jpg" width="154" height="43" border="0" title="Toggle Table of Contents" alt="Toggle Table of Contents" /></a></div>
 <div id="masthead">
 <table cellpadding="0" cellspacing="0" border="0" style="width:100%">
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diff --git a/user_guide/helpers/string_helper.html b/user_guide/helpers/string_helper.html
index 24a0a66..2a754a9 100644
--- a/user_guide/helpers/string_helper.html
+++ b/user_guide/helpers/string_helper.html
@@ -24,7 +24,7 @@
 
 <!-- START NAVIGATION -->
 <div id="nav"><div id="nav_inner"><script type="text/javascript">create_menu('../');</script></div></div>
-<div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="../images/nav_toggle.jpg" width="153" height="44" border="0" title="Toggle Table of Contents" alt="Toggle Table of Contents" /></a></div>
+<div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="../images/nav_toggle_darker.jpg" width="154" height="43" border="0" title="Toggle Table of Contents" alt="Toggle Table of Contents" /></a></div>
 <div id="masthead">
 <table cellpadding="0" cellspacing="0" border="0" style="width:100%">
 <tr>
diff --git a/user_guide/helpers/text_helper.html b/user_guide/helpers/text_helper.html
index be189ef..fb58b83 100644
--- a/user_guide/helpers/text_helper.html
+++ b/user_guide/helpers/text_helper.html
@@ -24,7 +24,7 @@
 
 <!-- START NAVIGATION -->
 <div id="nav"><div id="nav_inner"><script type="text/javascript">create_menu('../');</script></div></div>
-<div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="../images/nav_toggle.jpg" width="153" height="44" border="0" title="Toggle Table of Contents" alt="Toggle Table of Contents" /></a></div>
+<div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="../images/nav_toggle_darker.jpg" width="154" height="43" border="0" title="Toggle Table of Contents" alt="Toggle Table of Contents" /></a></div>
 <div id="masthead">
 <table cellpadding="0" cellspacing="0" border="0" style="width:100%">
 <tr>
diff --git a/user_guide/helpers/typography_helper.html b/user_guide/helpers/typography_helper.html
index 3865610..3116c36 100644
--- a/user_guide/helpers/typography_helper.html
+++ b/user_guide/helpers/typography_helper.html
@@ -24,7 +24,7 @@
 
 <!-- START NAVIGATION -->
 <div id="nav"><div id="nav_inner"><script type="text/javascript">create_menu('../');</script></div></div>
-<div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="../images/nav_toggle.jpg" width="153" height="44" border="0" title="Toggle Table of Contents" alt="Toggle Table of Contents" /></a></div>
+<div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="../images/nav_toggle_darker.jpg" width="154" height="43" border="0" title="Toggle Table of Contents" alt="Toggle Table of Contents" /></a></div>
 <div id="masthead">
 <table cellpadding="0" cellspacing="0" border="0" style="width:100%">
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diff --git a/user_guide/helpers/url_helper.html b/user_guide/helpers/url_helper.html
index c26bbcb..95599a5 100644
--- a/user_guide/helpers/url_helper.html
+++ b/user_guide/helpers/url_helper.html
@@ -23,7 +23,7 @@
 
 <!-- START NAVIGATION -->
 <div id="nav"><div id="nav_inner"><script type="text/javascript">create_menu('../');</script></div></div>
-<div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="../images/nav_toggle.jpg" width="153" height="44" border="0" title="Toggle Table of Contents" alt="Toggle Table of Contents" /></a></div>
+<div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="../images/nav_toggle_darker.jpg" width="154" height="43" border="0" title="Toggle Table of Contents" alt="Toggle Table of Contents" /></a></div>
 <div id="masthead">
 <table cellpadding="0" cellspacing="0" border="0" style="width:100%">
 <tr>
diff --git a/user_guide/helpers/xml_helper.html b/user_guide/helpers/xml_helper.html
index 376dc24..2d3cd44 100644
--- a/user_guide/helpers/xml_helper.html
+++ b/user_guide/helpers/xml_helper.html
@@ -24,7 +24,7 @@
 
 <!-- START NAVIGATION -->
 <div id="nav"><div id="nav_inner"><script type="text/javascript">create_menu('../');</script></div></div>
-<div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="../images/nav_toggle.jpg" width="153" height="44" border="0" title="Toggle Table of Contents" alt="Toggle Table of Contents" /></a></div>
+<div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="../images/nav_toggle_darker.jpg" width="154" height="43" border="0" title="Toggle Table of Contents" alt="Toggle Table of Contents" /></a></div>
 <div id="masthead">
 <table cellpadding="0" cellspacing="0" border="0" style="width:100%">
 <tr>