Dear Dave,

why do you add an invisible link (it's invisible, because no text is contained within the tags)?
Instead of

<div><a name="top-of-page"></a></div>
<div class="wb-main">

I would just give an id to the first <div>, e.g.,

<div class="wb-main" id="top-of-page">

This should do the job as well.

If others are interested in such a modification: The original source of mlf contains already a <div> which may be used as a target:

<div id="top">