CTAN has a new package: inversepath

[CTAN Announcements]

The package below has been added to tug.ctan.org and should soon 
be at your favorite mirror.

Thanks, Will.
Jim Hefferon
Saint Michael's College

.....................................................................

The following information was provided by our fellow contributor:

Name of contribution: inversepath
Author's name: Will Robertson
Location on CTAN: /macros/latex/contrib/inversepath
Summary description: Calculate inverse file paths
License type: lppl

Announcement text: 
----------------------------------------------------------------------
Calculate inverse relative paths. E.g., from "/one/two/three.tex" or 
"/one/two/" to "../../". Could be easily converted to Plain TeX if I 
wasn't lazy.
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This package is located at 
   http://tug.ctan.org/tex-archive/macros/latex/contrib/inversepath
.  More information is at
   http://tug.ctan.org/cgi-bin/ctanPackageInformation.py?id=inversepath
(if the package is new it may take a day for that information to 
appear).  We are supported by the TeX Users Group http://www.tug.org .  
Please join a users group; see http://www.tug.org/usergroups.html .