netscape with web and local files

[Dominique Desbiens <dodod@cedep.net>]

I would like to access some web file as if they are local on my
computer. Example:

	In a html file on my computer I have a link to
http://www.somewhere.com/folder_x and I would like to click on it and go
to /home/myname/folder_y on my computer instead.
	I suppose I have to make some kind of aliasing for each such address
that I want to be local on my computer. How can I do that or where can I
find information for doing that?