window.addEvent('domready', function() { 
    var mySlide = new Fx.Slide('citylist');
    $('citylist').set('opacity','.9');
    mySlide.hide();
    $('citylist').style.display = 'block';
    $('city').style.width = $('cityLink').offsetWidth+"px";
    $('city').addEvent('mouseenter', function(e) {
        e.stop();
        mySlide.slideIn();
    });
    $('city').addEvent('mouseleave', function(e) {
        e.stop();
        mySlide.slideOut();
    });
});