Invalid HTML: id

The module generates code like the following:

<div id="1" class="flip"><h2><a href="/node/1" title="view all">New website opens</a></h2></div>

The problem is the id. According to W3C, an id should start with a letter (not a digit). Even if it was allowed, ids are supposed to be unique across documents, so this would be a really bad choice

I have attached a patch which changes the id to taxonomy-block-NR (with NR 1, 2, 3 etc.). But I am not sure why you would want an id here at all, so perhaps removing it altogether is even saner.

Thank you,
  Frodo