function slideSwitch(x) {
	var $active = $(x+' li.active');

    if ( $active.length == 0 ) $active = $(x+' li:last');

    var $next =  $active.next().length ? $active.next()
        : $(x+' li:first');

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

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

$(function() {
    setInterval( "slideSwitch('#slideshow')", 5000 );
    //setInterval( "slideSwitch()", 5000 );
});