$(document).ready(function () {
    $(".PartnerTypes input:checkbox").each(function () {
        $(this).attr("checked", true);
    });

    $(".PartnerTypes input:checkbox").click(function () {

        if ($(this).is(":checked")) {
            $(".PartnerTypeId" + $(this).attr("rel")).each(function () {
                $(this).show();
            });
        }
        else
            $(".PartnerTypeId" + $(this).attr("rel")).each(function () {
                $(this).hide();
            });
    });
});
    function MailTag(emailId, domain, extension) {
        var at = ('@');
        var dot = ('.');
        var writeText = '<a href="mailto:' + emailId + at + domain + dot + extension + '">' + emailId + at + domain + dot + extension + '<\/a>';
        document.write(writeText);
    }