"Article page loads"
Is this, any article page on any site? In other words, you want this "user script" to be running in the user's browser, active all the time? Or is it an article page on a specific (OCLC?) site? If the former, then what you want is a Greasemonkey-like script, right? Klortho (talk) 15:09, 24 August 2013 (UTC)