Creating Choice Column in JSGrid Control

Hello, I have created a JSGrid control by using this helpful tutorial: http://msdn.microsoft.com/en-us/library/ee539027(v=office.14).aspx

However, I was asked to add one "Choice" Column and I haven't figured out a way to do so. Basically what I need is to create a column based on a fixed list of options and be able to select from them by using a dropdown.

Any help will be much appreciated.

Thanks,

Jose M. Cadenas, Msc. Sr. Developer