Images in Javadoc.

Here comes the simplest question of them all.

I want to include a picture in a Javadoc entry.  If I use an absolute path, it works fine.  If I use a relative path, nothing works.  I have to use a relative path since the sources I'm working on are shared across several computers.  Googling led me nowhere - most pages don't even mention pictures.

Is there something special pertaining to relative paths in Javadoc that I haven't taken into account?