cycle plugin updateActivePagerLink not triggered

cycle plugin updateActivePagerLink not triggered

I have this setup for cycle plugin
  2. jQuery("#frame").cycle({
  3.     updateActivePagerLink: function(pager, activeIndex) {
  4.         jQuery("#slider-nav").find("li:eq("+activeIndex+")").addClass("current")
  5.         .siblings().removeClass("current");
  6.         }
  7. });
However I find that the call back function is never triggered.

Any ideas? The code is here:  http://theparentingplace.automatem.co.nz