Custom Header in TableView?

I am trying to change the bar color of the headers in my tableview. The default color is like a lite blue and I want to change it to a green. Any assistance would be much appreciated.

I attached a pastie with my code:

http://pastie.org/1054022

watch the 'table_view_api_custom_header.js' in kitchen sink.

win.barColor= 'green';