When developing a real ASP.NET AJAX framework based web application, we often need to beautify the web pages to attract more web surfers besides giving them the professional and consolidated functions.  With the characteristic behaviors and animated controls supplied by ASP.NET AJAX framework, you can easily achieve your goal.  In this part of the series, I will show you the various glinting features the two ASP.NET 2.0 AJAX Futures January CTP libraries - PreviewGlitz and PreviewDragDrop -bring to us through concrete and distinct samples.  In the first installment of this series we will examine the four kinds of built-in behavior effects.