It is known that Microsoft has adopted JQuery has it’s “official” javascript Framework.
Now it is possible to have, in Visual Studio 2008, intellisense using this javascript framework.
In this post made by Scott Guthrie he shows how to install this support in javascript.
Although i don’t use JQuery (by some reason i prefer Mootools) it is a very good feature to add to visual studio. I know what it costs me to program using Mootools docs page has a support. Having intellisense would become things so much easy!