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

if ( $active.length == 0 ) $active = $('#slideshow IMG:last');

var $next =  $active.next().length ? $active.next()
	: $('#slideshow IMG:first');

 var $sibs  = $active.siblings();
 var rndNum = Math.floor(Math.random() * $sibs.length );
 var $next  = $( $sibs[ rndNum ] );


$active.addClass('last-active');

$next.css({opacity: 0.0})
    .addClass('active')
    .animate({opacity: 1.0}, 2000, function() {
            $active.removeClass('active last-active');
    });
}

$(function() {
setInterval( "slideSwitch()", 10000 );
});