window.addEvent('domready', function () {
    var el = document.id('tags').getElement('li');
    var myRevealFx = new Fx.Reveal(el, {duration: 500, mode: 'vertical'});
    myRevealFx.reveal();
    
    var textFade = function(){ 
        myRevealFx.dissolve();
        el = el.getNext('li');
        if (el === null){
            el = document.id('tags').getElement('li');
        }
        myRevealFx = new Fx.Reveal(el, {duration: 500, mode: 'vertical'});
        myRevealFx.reveal();
    };
    textFade.periodical(5000); //adds the number of seconds at the Site.
});