Description of Using an ASPX Button to Open a Javascript Window :
Using an ASPX Button to Open a Javascript Window is a simple ASP.NET tutorial which explains you about adding a java script window function using the ASP.NET button control. In this tutorial the author gives you a sample code which clearly shows how to add a button control in the aspx page, how to add a javascript funtion in the aspx page which centers the window based on the specified parameters.