Thanks for your answer.
But why it shows the TOC only if I turn the page, but doesn't shows the TOC if I change the article?
And now, I discovered this:
last page last article section 1 -->
5-way to the next article (first article section 2) --> article without TOC -->
pageturn backwards --> same article with TOC -->
pageturn backwards --> last page last article section 1.
This is a litte annoying. But thanks god, I seldom turn backwards.
While the benefit is much bigger than the "pain", I think, I have to accept this.
Bratzzo