Uncaught ReferenceError: Class is not defined?
<p>I'm curious to know why I'm getting this error? I've copied it exact from the website beezid.com (carousel.js) file, and I'm trying to get the same slide as them onto my website to update it.. As you can see I'm having issues with this?? Their site doesn't come up with this error? >></p>

<p>Carousel = Class.create(Abstract, {</p>

<p>carousel.js:26 Uncaught ReferenceError: Class is not defined</p>

<pre><code>initialize: function (scroller, slides, controls, options) {
    this.scrolling  = false;
    this.scroller   = $(scroller);
    this.slides     = slides;
    this.controls   = controls;
    this.menu       = false;
    this.menuTitleLen = 20;
</code></pre>
