(function (){

    var count = $(".slide > img").length;
    var current = 1;
    var sliderNext = 2;

    $("img[id^='slide_']").fadeOut(0);
    $("#slide_" + current).fadeIn(300);
    var loop = setInterval(function() {
        $("#slide_" + current).fadeOut(300);
        $("#slide_" + sliderNext).fadeIn(300);

        (sliderNext >= count) ? sliderNext = 1 : sliderNext++;
        (current >= count) ? current = 1 : current++;
    }, 3000)
});