Enable AJAX

I created a New ASP.NET website, and I recently configured AJAX in my system. Now I want my existing website to be AJAX enabled. So what all settings do I have make in Web Configuration File in order to enable it??
Thanks in Advance
[242 byte] By [maverick786us] at [2007-11-20 10:29:23]
# 1 Re: Enable AJAX
After installation of ajax asp.net extension, you could find this file: C:\Program Files\Microsoft ASP.NET\ASP.NET 2.0 AJAX Extensions\v1.0.61025\web.config. Open it, copy what you want to web.config in your website project.
jasonli at 2007-11-9 11:53:46 >