CodingForums.com - Offering an input field for users to change displayed data

Hello,

I'm currently working on http://footytweets.co.uk and would like to add an input field to my twitter feed widgets, which allows users to change which twitter account tweets are dispalyed.

An example is here; https://twitter.com/about/resources/...widget_profile

You can see in the example how you can enter a different twitter user account, then hit 'test settings', leading to related twees being displayed.

I can see how to do it but Im a super novice at JS so thought Id ask for assistance .

Any code help is very much appreciated.
Thx