I modified the MA crossing indicator so we can have a Stochastic crossing indicator. It has an alert too. It'll alert only once per crossing and not every bar. In addition, it has an e-mail alert. You can choose 10 different arrow styles:
Typical alert messages:
EURJPY (M30): Stoch (30,10,10) crosses UP
EURJPY (M15): Stoch (30,10,10) crosses DOWN
Kewl !