$(document).ready(function(){
$(function() {
    setInterval( "slideSwitch()", 10000 );
});
$('ul#slideshow').click(function(){
  slideSwitch();
});
});

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

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

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

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

    $next.css({opacity: 0.0})
        .addClass('active')
        .animate({opacity: 1.0}, 1000, function() {
            $active.removeClass('active last-active');
        });
}