Standard cursor change (non-custom)

Hi,
Ive done a search for this, but cant find anything simular to what im trying to find… Maybe its not even possible in flash.
I want to switch the mouse cursor between the original cursors on mouse-overs.
So normally the cursor becomes the finger when it rolls over a button, but in my case i want it to become a text-cursor (as when you roll the mouse over normal text).

If its possible it should be very easy, but i cant find it.