On Tue, Nov 16, 2010 at 9:51 AM, H.-Dirk Schmitt <dirk(a)computer42.org> wrote:
  Hello!
 is there a way to suppress the rendering of the TOC macro inside an
 included page?
 Can I control the level of headlines for the included page (e.g. make
 '=' to '===') ? 
Yes, in your example:
{{toc depth=3 /}}
Please see: 
http://code.xwiki.org/xwiki/bin/view/Macros/TocMacro20