Adding and removing parts from pie with google visualization

Question

Hello,

Using the Pie Chart ( http://code.google.com/apis/visualization/documentation/gallery/piechart.html ), is there anyway I can add/remove a data after the page was loaded?

For example, after a user click on a link I want to be able to remove one of the parts of the pie and when he clicks another link I want to add a new part.

Thanks.

Joel