function slideSwitch() {
	var $active = $('#slideshow div.active');
	if ( $active.length == 0 ) $active = $('#slideshow div:last');
	var $next =  $active.next().length ? $active.next()
		: $('#slideshow div:first');
	$active.addClass('last-active');
	$('#slideshow div.last-active').animate({opacity: 0.0}, 1000);
	$next.css({opacity: 0.0})
		.addClass('active')
		.animate({opacity: 1.0}, 1000, function() {
			$active.removeClass('active last-active');
		});
}
function slideshow(refresh) {
	$('#slideshow div:first').addClass('active');
	$('#slideshow div').filter(':not(#slideshow div.active)').css({opacity: 0.0});
	setInterval( "slideSwitch()", refresh );
}