MooTools Twitter ticker based on the JSONP protocol

Ticker.Twitter.js

/*
 * This requires https://gist.github.com/771026
 */

var Ticker = new Class({
    
    Implements: [Options],

    options: {
        delay: 5000
    },

    item: -1,
    
    initialize: function(term, element) {
        this.element = $(element);
        this.tweet = new Element('span');
        this.element.empty();
        this.element.adopt(this.tweet);
        this.twitter = new Request.Twitter(term, {
            onComplete: this.show.bindWithEvent(this)
        });
        this.twitter.send();
    },

    show: function(data) {
        this.tweets = data;
        // Show first tweet
        this.rotate();
        // Queue periodical ticker updates
        this.rotate.periodical(this.options.delay, this);
    },

    rotate: function() {
        this.item += 1;
        if (this.item > Object.getLength(this.tweets) - 1) this.item = 0;
        var tweet = new Element('span', {html: this.tweets[this.item].text}).fade('hide');
        $(this.tweet).fade('out').get('tween').chain(function() {
            this.tweet.dispose();
            this.tweet = $(tweet);
            this.element.adopt(this.tweet);
            this.tweet.fade('in');
        }.bind(this));
    }
});

// Example
window.addEvent('domready', function() {
    new Ticker('tehmaze', 'twitter');
});