我的jquery ajax表单帖有什么问题？

    $("button[name='advocate-create-button']").on("click", function () {
    $.ajax({            
        url: '/Vendor/AdvocateCreate',
        type: 'post',
        dataType: 'json',
        data: $('form#advocate-create-form').serialize(),
        success: function() {
            $(".modal_overlay").css("opacity", "0");
            $(".modal_container").css("display", "none");
        }    
    }).done(function (data) {
        var $target = $("#advocate-list-view");
        var $newHtml = $(data);
        $target.replaceWith(data);
        $newHtml.effect("highlight");
    });
    return false;
});
    $("button[name='advocate-create-button']").