Resetting customized layout in WP6 for individual end users

[bel Canto]

I have a Portal 6013 environment with JSR168 portlets, spring portlets, JSF portlets and a couple out of the box ones. I allow end users to customize their layout where they can even add/remove portlets. I want to add a button that allows them to "reset" back to the default.

Is the easiest way to somehow invoke an xmlaccess script when they push the reset button that will somehow run on the backend and relay their personal layout. If so, how can I do this? If not, what are some alternatives?

Thanks!