/**
                             * Adds support for the <code>scroll</code> property in <code>to</code>
                             * and <code>from</code> attributes.
                             * @module anim
                             * @submodule anim-scroll
                             */
                            
                            var NUM = Number;
                            
                            //TODO: deprecate for scrollTop/Left properties?
                            Y.Anim.behaviors.scroll = {
                                set: function(anim, att, from, to, elapsed, duration, fn) {
                                    var
                                        node = anim._node,
                                        val = ([
                                        fn(elapsed, NUM(from[0]), NUM(to[0]) - NUM(from[0]), duration),
                                        fn(elapsed, NUM(from[1]), NUM(to[1]) - NUM(from[1]), duration)
                                    ]);
                            
                                    if (val[0]) {
                                        node.set('scrollLeft', val[0]);
                                    }
                            
                                    if (val[1]) {
                                        node.set('scrollTop', val[1]);
                                    }
                                },
                                get: function(anim) {
                                    var node = anim._node;
                                    return [node.get('scrollLeft'), node.get('scrollTop')];
                                }
                            };