CSS:

.top_link {

bottom:0;
opacity: 0.9;
position: fixed;
right: 10px;
bottom:10px;
z-index: 99;

}

Modul (HTML-Code):

<div class="top_link">
  <a href="blog1/articles/top-link-animiert.html#top">
  <img src="files/images/icons/up-pfeil_40.png" width="30" height="30" alt="Header" /></a>
</div>

siehe toplink_mootools.txt in Tips & Tricks

In den Header