Script Summary: scrollTricks sets up two functions to improve page reading. Typing '1' while on a page toggles an auto-scroll function. Typing '2' will set an in-page bookmark, set it, read on and type '2' again to return. Great for: instapaper, long emails, google reader. Type 1, then sit back with your coffee and read. The autoscroll function is compatible with Instapaper Article Tools' autoscroll button. Clicking the scroll button from that script will toggle autoscrolling, typing "1" will toggle the same.
Copyright: 2009+, ElasticThreads (http://elasticthreads.tumblr.com/)
License: (CC) Attribution Non-Commercial Share Alike; http://creativecommons.org/licenses/by-nc-sa/3.0/
update 11/5 -- used Google Closure to optimize the userscript