Can Create Pop Up Message(Yes&No action) in ASP.NET web application

Can we create pop up message while running the web application code by ASP.NET to gather response from user whether to click for the yes or no button from the message box that need to pop up?:o

You could just make a page with a yes/no option

Here (http://www.4guysfromrolla.com/webtech/100604-1.shtml) is a great tutorial that shows you how to do this. Hope it helps.