JScript Editor Extensions for Visual Studio
Microsoft have done a really good job by giving developers a great environment to do their work in; namely the Visual Studio suite with all its variants. This IDE’s intellisense is one of its strongest points, but anyone that’s tried to write javascript code has probably felt a bit lost.
Intellisense, brace-highlighting, current variable highlighting, code comments…all gone….until now!
Microsoft Corp has just released JScript Editor Extensions, a Visual Studio extension that enables all of the above, along with code outlines. I admit it’s nothing revolutionary compared to other well-established web-IDE’s, but it’s still great to have extended tooling support within Visual Studio itself.
Here’s a look at what the IDE looks like with bracing support and outlining. Notice the collapsed ‘complete’ and ‘success’ functions
Head over to the Visual Studio Gallery and try out JScript Editor Extensions.

thank you for giving a nice solution.but i have gotten a better solution in other site.this site below.
This really a nice extensions which is make life easy for developer specially for JavaScript development.
Bundles the following extensions for the Visual Studio 2010 JScript editor:………..more
http://aspboss.blogspot.com/2011/02/jscript-editor-extensions-for-visual.html