[xsl] XSL: Transform links and sources to an absolute URL

[Plew <plew@xxxxxx>]

Hello

this is my first post here, so i hope somebody can help me?
I have an XML file like this, with relative and absolute URL`s


<images>
   <img src="http://www.foo.de/test/bar.jpg"; alt="" width="800" 
height="600" />
   <img src="/test/bar.jpg" alt="" width="800" height="600" />
</images>
<links>
   <a href="www.foo.de">...hi there</a>
   <a href="/test/test.html">bar</a>
</links>

..and know I need a way to append the absolute URL to the relative 
path`s to prevent errors, when i`m generating HTML on my server with an 
xslt.
Whats the best way? Pass a parameter with the URL to the XSLT? How can I 
dynamically add this to an src or href?

I`m using Saxon with XSLT 2.0.


greetings Stefan