Adding a button with click function in drill-down/hidden row

Hi All,

Would someone be able to suggest in this example code : http://www.datatables.net/blog/Drill-down_rows - how can I add a button to the hidden row and attach a function to that buttons click. Basically I have a text area in a hidden row and I want to save its content back to an ajax data source on click.

Donation on the wy! Cheers.