jQuery("#cern-toolbar").on("click", "ul li.signin a.cern-signin", function () {
    jQuery(this).closest("li.signin").toggleClass("signin-expand");
    jQuery(this).closest("#cern-toolbar").toggleClass("signin-expand");
});

jQuery(window).click(function () {
    jQuery("#cern-toolbar").removeClass("signin-expand");
    jQuery("#cern-toolbar li.signin-expand").removeClass("signin-expand");
});
jQuery("#cern-toolbar").click(function (event) {
    event.stopPropagation();
});
jQuery(window).scroll(function () {
    jQuery("#cern-toolbar").removeClass("signin-expand");
    jQuery("#cern-toolbar li.signin-expand").removeClass("signin-expand");
});