[xsl] Concat Content of Node to Another?

["Donald M Rinderknecht" <Donald.M.Rinderknecht@xxxxxxxx>]

How can I concatenate the value of a node to a string, or actually value 
of another node?

I have:
<Presentation>
   <second>
      <imagepath>this/path/is/here/</imagepath>
   </second>

   <third>
      <Slide id="1">
         <Filename>image.swf</Filename>
      </Slide>
   </third>
.
.
.
</Presentation>

I want:
... insert other stuff here...
<Filename>this/path/is/here/image.tif</Filename>
... insert other stuff here...
I am doing a replace() for the swf -> tif, but I can't figure out how to 
get the path attached to the filename.

I'm afraid I'm missing some basics, but I've searched to no avail.

Thanks,
Don.

--
Don Rinderknecht -- KD5MVV
Meteorologist Instructor/Developer ~ Warning Decision Training Branch
Donald.M.Rinderknecht@xxxxxxxx ~ http://wdtb.noaa.gov