var total_divs = 0;

var className = 'slideContainer';

$(document).ready(function () {

    $("." + className).attr("id", function (arr) {

        total_divs++;

        return "fade" + (arr + 1);

    });

    fadeRotate(0);

});

function fadeRotate(x) {

    var y = x;

    if (x == total_divs) y = 1; else y++;

    $("#fade" + x).fadeOut(1500);
    $("#fade" + y).fadeIn(1000);
    setTimeout('fadeRotate(' + y + ')', 5000);

}