var opening = false;
var closing = false;
$(function() {
    $('div#x-nav').css('cursor', 'pointer').hover(
    function() { if (!opening || !closing) { opening = true; $('div#x-nav > div#x-links').slideDown(function() { opening = false; }); } },
    function() { if (true) { closing = true; $('div#x-nav > div#x-links').slideUp(function() { closing = false; }); } });
});