$(function() {
var total = $("#slideshow").children().length;
    var counter = 0;
    var f = function() {
        var n = $("#slideshow").data("n");
        if(n===undefined) n = 0;
        else n++;
        
        n=n%total;
        if(total>1){
            $("#slideshow").children().fadeOut(1000);
        }    
        $("#slideshow").children().eq(n).fadeIn(500);
        $("#slideshow").data("n",n);
        
    };
    f();
    setInterval(f,5*1000);
});