function rotator(name , s_f, e_f, delay) {
  setTimeout(sub_rotator(name, s_f,s_f,e_f, delay), delay);
}

function sub_rotator(name,f, s_f, e_f, delay) {
  return (function() {
  $("#"+ name + f).fadeOut();
  if (f == e_f) { f = s_f; } else { f = f + 1; }
  setTimeout("$('#" + name + f + "').fadeIn();", 450);
  setTimeout(sub_rotator(name, f, s_f, e_f, delay), delay + 450);
  });
}