Maked by Salvatore Noschese (DarkWolf):
http://www.darkwolf.it/
Original script by:
http://gazpo.com/2012/02/scrolltop/
With this plugin you can simply have a Smooth Page Scroll "to Top" in your blog :)
No settings, no edit! Simply install and active ;)
You can see in action here:
http://vegamami.altervista.org/ :)
Links
Author and demo: