function slideSwitch(switchSpeed) {
	var $active = $('#slideshow img.active');
    if ( $active.length == 0 ) $active = $('#slideshow img:last');
    var $next =  $active.next('img').length ? $active.next('img') : $('#slideshow img:first');
	$active.css({opacity: 1.0}).addClass('active').animate({opacity: 0.0}, switchSpeed);
	$next.css({opacity: 0.0}).addClass('active').animate({opacity: 1.0}, switchSpeed, function() {$active.removeClass('active last-active');});	
}

$(function() {
	if ($("#slideshow img").size() > 1) setInterval("slideSwitch(3500)","6000");    
});