$(document).ready(function() {
    $("#slogans p").hide();
    var txt = $("#slogans p:first");
    fade(txt);

});

function fade(txt) {

    if (!txt.length) {
        txt = $("#slogans p:first");
    }
        txt.fadeIn("slow",function() {
            txt.oneTime(6000,function () {
                txt.fadeOut("slow",function() {
                    fade(txt);
                });
                txt = txt.next("p");
            });
        });


}