Willy, I have to ask, what is this craziness:
That not only is completely invalid, it doesn't make any sense. There is a better way to mark associations of closing tags with opening tags, and should be taught, especially now that standards are starting to become the norm.
</tr><!-- id="listRow_1" -->
Dreamsonthefly, the <!-- --> you see above are commenting marks - anything between them will be completely ignored by the browser. Some people use these to denote, for example, which row or table is closing with the current tag, just like above. It's entirely optional, but a very good practice, to comment your code. And please try to make your code both readable and meaningful: use an HTML reference book or website to guarantee that you're not breaking any of the rules of HTML.