intellisense with jquery in visual studio 2010

Simple google search came up with this:

VS2010 Tips #7: How to make jQuery Intellisense work for external JavaScript file

Short answer:

/// <reference path="../../scripts/jquery-1.5.1-vsdoc.js"/>

Note that you can't use the @ sign inside js file like in a Asp.net-MVC View

Read this to learn how you can overcome this.

Right click the project >> Click on 'Add Library Package Reference' >> On the left frame select 'Online' >> On the right most corner frame, enter 'jquery' in the 'Search Online' textbox >> After results come, click and Install the 'jQuery.vsdoc' package.

Simple!