function slideSwitch() {
      var $active = $('#slideshow div.active');
  
      if ( $active.length == 0 ) $active = $('#slideshow div:last');
  
      var $next =  $active.next().length ? $active.next()
          : $('#slideshow div:first');
  
      $active.addClass('last-active');
  
      $active.css({opacity: 1.0})
          .animate({opacity: 0.0}, 100, function() {
            
              $active.removeClass('active last-active');
              
              $next.css({opacity: 0.0})
                  .addClass('active')
                  .animate({opacity: 1.0}, 500, function() {
                  
                  })
              
          });
  }
  
  $(function() {
      setInterval( "slideSwitch()", 5000 );
  });