Here is the code for this animation:
anim_right = function() {
new_attr = {
'transform': 't100,0'
}
circ.animate(new_attr, 1000, 'linear', anim_left)
}
anim_left = function() {
new_attr = {
'transform': 't0,0'
}
circ.animate(new_attr, 1000, 'linear', anim_right)
}
setup = function() {
paper = Raphael('container', 200, 100)
circ = paper.circle(50, 50, 30)
anim_right()
}
$(document).ready(setup)