This is a Javascript bookmarklet which I wrote to allow me to find papers normally using websites for which UIUC has a site license, such as ScienceDirect or SpringerLink, and still log in to the University of Illinois library proxy server without having to navigate back to where I was in the journals afterwards.  Just create a bookmark and set the URL to the following:

javascript:var%20currentURL=window.location;newURL=currentURL.protocol+’//’+currentURL.host+’.proxy2.library.uiuc.edu’+currentURL.pathname+currentURL.search+currentURL.hash;window.location.href=newURL;

Sorry there’s no link—WordPress.com does not allow Javascript for security reasons.