img.src.path — Path to HTML image files
Add a path prefix to each HTML
img or FO
fo:external-graphics element's
src attribute.
This path could relative to the directory where the HTML/FO
files are created, or it could be an absolute URI.
The default value is empty.
Be sure to include a trailing slash if needed.
This prefix is not applied to any filerefs that start with "/" or contain "//:".