Help getting asp labels to toggle

Help getting asp labels to toggle

So basically I have an update panel and inside that updatepanel I have a checkbox(Which i have set to autopostback because I need the page to reload for something else). When I click the checkbox I would like it to toggle off and when the checkbox is uncheck I want it to toggle on. These labels are outside of the updatepanel. my code is below..


$(function () {
        $(".kk").change(function () {
            $(".ff").toggle(1000);

});

});