I am trying desperately to pull latest blogs into my navigation.ss include file. but so far with no success.

i have.

function LatestBlogPosts($num=5) {
   $blogs = DataObject::get_one("BlogHolder");
   return ($blogs) ? DataObject::get("BlogEntry", "ParentID = $blogs->ID", "Date DESC", "", $num) : false;
   }

in my page.php

and

<% if ClassName = BlogHolder %>
         blog

         <% if LatestBlogPosts(4) %>
         
            <% control LatestBlogPosts(4) %>
            
$Title

            <% end_control %>

         <% end_if %>
            
<% end_if %>

in navigation.ss

but not working.

can anyone advise where i am going wrong please.

thanks