[Orgmode] HTML: add extra content

[Rasmus]

Hi,

Publishing org projects to html, it is possible to add a nice content which is
placed in the upper corner. The html code is given by:

,----
| <div id="content">
| <div id="org-div-home-and-up"
style="text-align:right;font-size:70%;white-space:nowrap;">
|  <a accesskey="h" href="sitemap.html"> UP </a>
|  |
|  <a accesskey="H" href="index.html"> HOME </a>
| </div>
`----

I would like to add buttons to "content", namely a pdf button and maybe a
"beamer" button.

When I publish my project I publish it as html and pdf. Naturally, the name is
identical. Thus, a button linking to NAME.pdf (where name is the same for
NAME.{org,html,pdf}).

Ideally, I would like to add generic buttons so I would also be able to add a
NAME-b.pdf for beamer slides generated by a seperate file.

Is this possible?

Thanks,
Rasmus