DOCBOOK: mediaobject with ulink, clickable image

[Janning Vygen <vygen@gmx.de>]

Hi,

i ve read the docbook docs for mediaobject 
http://docbook.org/tdg/en/html/imageobject.html

and found the example with eiffeltower.

how can i achieve to make the image clickable within html.
I can`t surround the mediaobject with an ulink. it`s because link is 
an inline and mediaobejct is a block element, right?

i can make it like this
<para>
  <link linkend=".."><inlinemediaobjct ../></link>
</para>

But with <inlinemdiaobject> i cant use a caption like the example of 
the eiffeltower does. 

thanks in advance for any hints.

kind regards,
janning

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