How do I implement the Stack Overflow search box?

Question

In the interest of sincere flattery I would like to emulate the search box that Stack Overflow presents its users at the top right of the screen. I would like to be able to duplicate the AJAX/type ahead nature of this text box as closely as possible (but over my own data set). Does anyone know if this is custom built control or does it leverage a pre-existing control or jquery plugin? The implementation is very elegant / intuitive so I would like to mimic it’s functionality.

Answer 1

http://stackoverflow.com/questions/305994/jquery-autocomplete-and-aspnet

Answer 2

FlexBox appears to be another impressive option.