ASP.NET JavaScript IntelliSense

A new release of Visual Studio “Orcas” shows off the intellisense features nicely, including:
1) Proactive Completion List: No more waiting for ‘.’
2) Keywords in Completion List: fun your way to function
3) ASP.NET AJAX Concepts in Completion List: Direct support for Atlas
4) IntelliSense from Script Libraries for ASPX Pages: Now you can see objects that exist in other external script files.

This comes along with the release of an updated Ajax Control Toolkit.

more information:
blogs.msdn.com