Shifting to a random scene

How can i have the scenes change in a random order?
(Currently i have scenes changing when the character touches a certain object), but i want the game to continue randomly on one of the other scenes and not in a pre-determined order)

thanks in advance,
Sh

use the random actuator to get a random value in a property
use multiple property sensors to trigger the according scene actuators

1 -> scene A
2 -> scene B
3 -> scene C
etc.

or just do it in Python…