How to put scrolling text in title tag?

Haven't made these for a long time, but this should work:

(function titleScroller(text) {
    document.title = text;
    setTimeout(function () {
        titleScroller(text.substr(1) + text.substr(0, 1));
    }, 500);
}(" Nature dff ssfd "));

I made an easy and simple JavaScript library to accomplish this task.