The Scriptaculous distribution is available from http://script.aculo.us/downloads.
The file scriptaculous-js-x.x.x.zip (at the time of writing: scriptaculous-js-1.6.2.zip) should be saved and unpacked to a convenient location.
The distribution contains a lib directory containing the file prototype.js and a src directory containing the following Scriptaculous files:
These files (including prototype.js) should be copied to a convenient location (the file unittest,js is optional).
The version of Prototype may differ from the version of Prototype you already have. If this is the case, the later version of Prototype should be used. At the time of writing, Scriptaculous 1.6.2 uses Prototype-1.5.1rc0, while the latest released version of Prototype is 1.4.0. In this case, if we want to use Scriptaculous, we should use prototype-1.5.1rc0 as prototype.js throughout.
The following ...