Building an App with jQuery and JAXER

The document discusses building an app with jQuery and Jaxer, which allows running JavaScript code on both the client-side and server-side. Jaxer provides a server-side JavaScript environment and framework that enables mashups and improving perceived performance by running some code on the server. Functions can be proxied to run on the client or server. The document includes examples of setting up a database and registering a user using Jaxer and JavaScript functions running on both the client and server.