gRaphael_pie.js

// deeper into the pie
var pie_stuff = pie.items;
var pie_sectors = pie_stuff[1]; 
var sector1 = pie_sectors[0];

// within some DOM element, I attached .hover() and added,

sector1.animate({scale: [1, 1, this.cx, this.cy]}, 500, "bounce").attr({"fill": off_color});