/usr/share/nagios3/htdocs/includes/jquery-1.7.1.min.js is in nagios3-cgi 3.5.1.dfsg-2.1ubuntu8.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/nagios3/htdocs/includes/../../../javascript/jquery/jquery.min.js