Ask about a customized EEVL-Include. RDN-Include has existed as a trial service for about a year. We hope to have sites running at the British Library and SurreyNet in the near future. If this is a problem for you then we have also developed RDNi-Lite that uses Javascript and can be implemented by any Web editor. RDN-Include is provided free to all UK higher and further education institutions.
Licenses are available for other types of organization.