fonq.be does make use of the anchor but it does use the tabindex for the main content:
<div id="container">
<ul id="skippie">
<li><a href="#main">direct naar inhoud</a></li>
<li><a href="#footer">bedrijfsinformatie en klantenservice</a></li>
</ul>
...
<div class="content">
<div class="col_1-1" id="main" role="main" tabindex="-1">
I have tried to do something similar, but to no avail. I’m still trying to make it work…