IntelliJ IDEA already supports JavaScript that can be uses for developing AJAX applications. The small demo where a simple AJAX page counter is created in 5 minutes shows you what features are available in version 5.1.

But IntelliJ IDEA is ready to do more. What do you need from AJAX tool? What features would you like to see in forthcoming version 6.0 of IntelliJ IDEA? Let us know.