Have you checked out Jaxer? If not then you need to as it is the world's first Ajax server which enables you to write your entire presentation layers and application in Ajax. Let's check out the features of Jaxer:

Write application and presentation layers in Ajax

Now it's very much possible to write your server code, client code and even shared code using your Ajax knowledge

Sharing validation code on browser and server

Get ready to tag any function or block of function for running on both browser and server and you can easily validate your forms for getting instant user feedback

Access file, socket and database from JavaScript

It enables complete access to databases such as integrated SQLite database or MySQL

Seamless communication between server and browser

Pages written in languages such as Java, PHP etc can be easily accessed

Offers easy access to local or remote web resources without any cross domain security restrictions

Open source

The best thing about it is that its open source as it is available under GPL and uses the Mozilla engine making it fully compatible with the updated JavaScript standards.

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