$(document).ready(function () {    
    $("#ctl00_phContent_registration_txtDateOfBirth").datepicker({dateFormat: "dd/mm/yy", defaultDate: '-30y'});
            
    $("a[rel=datepick]").click(function() {
        $('#ctl00_phContent_registration_txtDateOfBirth').focus();
        return false;
    });
});