hi!
I try to hide sidebar in only onde page. Sidebar show, at right, the second level menu, for that page. In ArticleHolder page I want hide this second level menu. So I try to do in this way, but someting is wrong, can you help me?
I want underline that in brackets I put "ArticleHolder": this is the name of "ArticleHolder.php" file, not the url oh page that is "result"

<div id="sidebar" >
   <% if Page(ArticleHolder)%>
      <% if Menu(2) %>
      <div class="sidebox">empty</div>
      <% end_if %>
   <% else %>
         <% if Menu(2) %>
         <div class="sidebox">   
            <h1 class="clear"><% control Level(1) %>
            $Title
         <% end_control %>
         </h1>
            <ul class="sidemenu">
               <% control Menu(2) %>   
               <li><a href="$Link" title="Go to the $Title.XML page" class="$LinkingMode<% if First %> top<% end_if %>"><span>$MenuTitle</span></a></li>
               <% end_control %>         
            </ul>   
         </div>
         <% end_if %>
   <% end_if %>
</div>

Thanks, I try your solution with Classname and it's ok!