First of all, jQuery works in client side only, because this is all JavaScript. So, it does not matter if this is ASP.NET or not. It just must be the ASP.NET resource generating HTML and/or JavaScript file(s). Or just HTML+JavaScript files, without any ASP.NET. It just does not matter much.
You need to include jQuery library and use it in your HTML code. Please start here:
http://docs.jquery.com/How_jQuery_Works[
^].
—SA