Let us see how the MooTools More Builder works by downloading an Fx plugin called Fx.Accordion.
In your web browser, navigate to the More section in the MooTools official site. The web address is: http://mootools.net/more.
Scroll down to the section called Fx and click on the box beside Fx.Accordion.
Click on the box beside Fx.Accordion. This will automatically include other components, namely: Fx.Elements and More. These components are required for Fx.Accordion to run, so they must be included in the download.
Scroll down the page towards the heading, Download Options. Choose the compression type that you want. If you are interested in studying the code of the plugins (which I suggest you do), choose No Compression. Otherwise, choose a compressed version to reduce the file size to minimum.
Click on the Download button to proceed with the download. Save this JavaScript file in a convenient location, because we will be using this later in...