$(document).ready(function () {

    changeRimSlider();

    setInterval("changeRimSlider()", 6000);

});

function changeRimSlider() {
        var thisSlide = $("#rimSlider img:visible");
        var nextSlide = $(thisSlide).next();

        if (!($(nextSlide).length)) {
            nextSlide = $("#rimSlider img:first");
        }

        $(thisSlide).fadeOut(300);
        $(nextSlide).fadeIn(2000);
}