function slideSwitch() {
var active = $('#slideshow IMG.active');
if ( active.length == 0 ) active = jQuery('#slideshow IMG:last');
var next =  active.next().length ? active.next()
	: jQuery('#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');
	});
}

$(document).ready(function(){ 
	setInterval( "slideSwitch()", 4000 );

});