One of the useful facilities offered by the OU library is the ability to log in to a wide variety of subscription based services (databases and journal collections, for example) via the OU common authentication system.
This is achieved at the OU by defining links of the form:
http://libezproxy.open.ac.uk/login?url=http://whatever.service.you/want/to/get/access.to
presumably usinga variant of Useful Utilities' ezproxy script, which allows the Library to define all sorts of rewriting rules to log the user into the desired system.
partly because it's Friday lunchtime, I thought I'd spend a minute or two knocking up a bookmarklet that will - sometimes - log me in to a site requiring authentication via OU libezproxy. (<- That's it, just there, the bookmarklet; just drag it onto your bookmark toolbar, and when you click on it it will try and log you int to the current page via the OU's libezprxoy service.)
If you're interested in writing your own, all it does is this: javascript:void(h='http://libezproxy.open.ac.uk/login?url=');void(h+=location.href);window.location=h;).
Now sometimes it work, sometimes it doesn't. If you have an OU SAMS ID, or even better - if you're already logged in to the OU via SAMS - have a look here and see what happens to the subscription status of the journal issues when you click on the bookmarklet.