jm-zz .... i discover this cool implementation and i say why not ? http://developer.apple.com/technotes/tn/tn1132.html#top a cool thème. a little tips to "back to top" : http://wiki.splitbrain.org/wiki:tips:back_to_top
jm-zz Yep, it is just for the design of the page... it is cool Apple work i think ? Just for improvisation and enumeration knowledge