function slideSwitch() {
    var $active = $('#slideshow img.active');

	var length = $('#slideshow img').length;

	if ( length > 1 )
	{
	    if ( $active.length == 0 ) $active = $('#slideshow img:last');
	
	    var $next =  $active.next().length ? $active.next()
	        : $('#slideshow img:first');
	
	    $active.addClass('img-active');
	
	    $next.css({opacity: 0.0})
	        .addClass('active')
	        .animate({opacity: 1.0}, 1000, function() {
	            $active.removeClass('active last-active');
	        });
    }
}

$(function() {
    setInterval( "slideSwitch()", 2500 );
});