Before building an Ajax application

Web Developers having more than 10 years of experience with client/server tools are not comfortable to built Web 2.0 applications so the minimum skills that a typical Visual Basic/Visual Studio developer would need to learn to start building an Ajax application are

* New database: MySQL
* New server language: Java
* New application server: Spring
* New database access framework: Hibernate
* New client/server messaging layer: Json
* New client language: Javascript
* New client toolkit: Dojo
* New styling language: css
* New IDE: eclipse