function largeSlideSwitch()
{
    var $largeActive = $('#slideshow IMG.active');

    if ($largeActive.length == 0) $largeActive = $('#slideshow IMG:last');

    var $largeNext = $largeActive.next().length ? $largeActive.next()
        : $('#slideshow IMG:first');

    $largeActive.addClass('last-active');

    $largeNext.css({ opacity: 0.0 })
        .addClass('active')
        .animate({ opacity: 1.0 }, 1000, function()
        {
            $largeActive.removeClass('active last-active');
        });
}

$(function()
{
    setInterval("largeSlideSwitch()", 5000);
});