next and previous links fixed up
diff --git a/user_guide/libraries/zip.html b/user_guide/libraries/zip.html
index 3df99bf..8629bc1 100644
--- a/user_guide/libraries/zip.html
+++ b/user_guide/libraries/zip.html
@@ -270,7 +270,7 @@
 

 <div id="footer">

 <p>

-Previous Topic:&nbsp;&nbsp;<a href="validation.html">Validation Class</a>

+Previous Topic:&nbsp;&nbsp;<a href="xmlrpc.html"> XML-RPC Class</a>

 &nbsp;&nbsp;&nbsp;&middot;&nbsp;&nbsp;

 <a href="#top">Top of Page</a>&nbsp;&nbsp;&nbsp;&middot;&nbsp;&nbsp;

 <a href="../index.html">User Guide Home</a>&nbsp;&nbsp;&nbsp;&middot;&nbsp;&nbsp;