function FadeOutIn(){
    var pics = jQuery('div.topPhoto');
    pics.eq(FadeOutIn.n).fadeOut(1000, function(){
        var next = FadeOutIn.n + 1;
        next = next == pics.length ? 0 : next;
        pics.eq(FadeOutIn.n=next).fadeIn(1500);
    });
};
FadeOutIn.n = 0;
jQuery(function(){ setInterval("FadeOutIn()", 8000); });