diff --git a/user_guide/libraries/validation.html b/user_guide/libraries/validation.html
index 8c033ee..3835670 100644
--- a/user_guide/libraries/validation.html
+++ b/user_guide/libraries/validation.html
@@ -33,7 +33,7 @@
 <div id="masthead">
 <table cellpadding="0" cellspacing="0" border="0" style="width:100%">
 <tr>
-<td><h1>Code Igniter User Guide Version 1.5.0</h1></td>
+<td><h1>Code Igniter User Guide Version 1.5.0b1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Full Table of Contents</a></td>
 </tr>
 </table>
@@ -590,6 +590,15 @@
 <td class="td">&nbsp;</td>
 </tr>
 
+<td class="td"><strong>valid_ip</strong></td>
+<td class="td">No</td>
+<td class="td">Returns FALSE if the supplied IP is not valid.</td>
+<td class="td">&nbsp;</td>
+</tr>
+
+
+
+
 </table>
 
 <p><strong>Note:</strong> These rules can also be called as discreet functions. For example:</p>