The fake image is associated with a css class that spans over the logo. So it looks like the logo itself is clickable.
@@ -14,6 +14,8 @@ planning, and authoring with a fast and effective plain-text
system.
#+begin_html
+ <!-- Add a fake image and use a CSS class to make it linkable -->
+ <a href="/"><img src="http://orgmode.org/img/spacer.gif" class="logo-link" /></a>
<table width="100%">
<tr>
<td rowspan="2">
Bastien Guerry