Removing “confirm” pop-ups in admin order.

I have a client that will be primarily entering orders in the admin section, and we need to remove the JavaScript confirm boxes that pop up every time you click Calculate Total and Calculate Taxes.

Alternatively, if we can make it calculate the total each time an item is added rather than having to click an extra button that would be better.

I don’t see any hooks for the ajax stuff, if someone can point me in the right direction it would be appreciated.