Adding links to hAtom markup for many items on one page

Some of my pages. e.g:

        <http://www.westmidlandbirdclub.com/ladywalk/latest.htm
>

have markup like:

   <li class="hentry">
        <abbr class="updated entry-title"
title="2006-09-20">20th</abbr>:
        <span
class="entry-content">[text].</span>
   </li>

Which is, of course, part of hAtom.

Some RSS clients (e.g. FireFox's "live bookmarks")
don't recognise feed
items with no URL, so I'd like to expand it by adding a
date-related ID:

   <li class="hentry" id=D2006-09-20>
        <abbr class="updated entry-title"
title="2006-09-20">20th</abbr>:
        span
class="entry-content">[text].</span>
   </li>

and a ' rel="bookmark" ' tag for
"#D2006-09-20".

Is there any way to do that, without having self-referring
links? I see
no reason why those URLs need to be visible on the page to
which they
refer.

-- 
Andy Mabbett
                Say "NO!" to compulsory ID Cards: 
<http://www.no2id.net/>

                Free Our Data:  <http://www.freeourd
ata.org.uk>
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