function slideshow() {
    $('div#rotator ul li').css({ opacity: 0.0 });
    $('div#rotator ul li:first').css({ opacity: 1.0 });

    setInterval('rotate()', 5000);
}

function rotate() {
    var current = ($('div#rotator ul li.show') ? $('div#rotator ul li.show') : $('div#rotator ul li:first'));
    var next = ((current.next().length) ? ((current.next().hasClass('show')) ? $('div#rotator ul li:first') : current.next()) : $('div#rotator ul li:first'));

    // next image
    next.css({ opacity: 0.0 })
        .addClass('show')
	    .animate({ opacity: 1.0 }, 2000);

    // current image        
    current.animate({ opacity: 0.0 }, 2000)
	    .removeClass('show');
};