jQuery(document).ready(function() {
setInterval( "slideSwitch()", 5000 );	
});

function slideSwitch() {
		var $active = $('#slideshow IMG.active');
		if ( $active.length == 0 ) $active = $('#slideshow IMG:last');
		// use this to pull the images in the order they appear in the markup
		var $next =  $active.next().length ? $active.next()
			: $('#slideshow IMG:first');
		$active.addClass('last-active');
		$next.css({opacity: 0.0})
			.addClass('active')
			.animate({opacity: 1.0}, 1000, function() {
				$active.removeClass('active last-active');
			});
	}