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

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

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

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


    $active.animate({opacity: 0.0}, 1500);
    $next.css({opacity: 0.0})
        .addClass('active')
        .animate({opacity: 1.0}, 2000, function() {
            $active.removeClass('active last-active');
        });
}

$(function() {
	$('#slideshow img:first').addClass('active');
	$('#slideshow img').not('.active').css({opacity:0.0});
    setInterval( "slideSwitch()", 4000);
});