function slideSwitch() {
        var $active = $('#catering_slideshow IMG.active');
     
        if ( $active.length == 0 ) $active = $('#catering_slideshow IMG:last');
     
        // use this to pull the images in the order they appear in the markup
        var $next =  $active.next().length ? $active.next()
            : $('#catering_slideshow IMG:first');
     
        // uncomment the 3 lines below to pull the images in random order
        
        // 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}, 1000, function() {
                $active.removeClass('active last-active');
            });
    }
     
    $(function() {
        setInterval( "slideSwitch()", 3000 );
    });