Download the newest released version of the Dojo Toolkit from: http://download.dojotoolkit.org/

The “built” version is: dojo-release-1.3.0.zip

Unpack the contents of the archive into a folder (preferably on a web server as this is always a good case for Ajax development). Let’s call it “js/”. You may also name your dojo directory “dojotoolkit” as the examples here will show. If you wish to version Dojo, you may leave it as dojo-release-1.3.0. You should now have a directory structure similar to this:

The most important thing to know when installing the Dojo Toolkit is where your copy of dojo.js is located. The package system handles the loading of all other dependencies and modules, once dojo.js has been loaded into the page.

You can verify your download and install is working by pointing your web browser to http://localhost/js/dojotoolkit/dojo/tests/runTests.html or browse the dijit
test pages at http://localhost/js/dojotoolkit/dijit/tests/

The Dojo Book, a freely available collection of guides and tutorials, provides a more in-depth description of the various ways to get the Dojo source and about the different releases available.