JQuery Validation invalidHandler not firing

JQuery Validation invalidHandler not firing

I have a validation plugin page which can be found at http://www.messianicbible.com/donatetest.aspx which uses the validation plugin. However, the invalid handler is not firing to scroll the focus to the first invalid error. It seems none of the code in the handler is firing. I tried putting an alert before the code and it did not fire. Any suggestions on how to troubleshoot the code. Any help is greatly appreciated. I have used the same code on another page elsewhere and it works fine ( http://www.messianicbible.com/reservenow.aspx). Code in question:
  1. validator = $("#aspnetForm").validate({
                    debug: false,
                    focusInvalid: true,
                    invalidHandler: function(form, validator) {
                        if (validator.numberOfInvalids()) {
                            setTimeout(function() {
                                scrollTo(":input.error:first", 50.0, 500);
                            }, 0);
                        }
                    },
                    submitHandler: function(form) {
                        $("#ctl00_ContentPlaceHolder1_Button1").attr("disabled", "disabled");
                        $("#loading_status").html("<span style='color:blue'>Processing Donation...</span>");
                        $("#loading").show();
                        form.submit();
                    }
                });