This article shows you how you can create pop-ups in your ASP.NET application using the ASP.NET AJAX framework and the ASP.NET AJAX Control toolkit. In particular, you will learn how to use the HoverMenuExtender control to make good use of pop-ups
this tutorial will be about using the Mootools JS library with ajax, if you dont know a thing about ajax you will do just fine with mootools. but you need to have know some javascript to keep up.
Sun, Dec 20 | from Tutorialized.com