[EquisMetaStock Group] Help on TEMA crossover explorer

["bvpr1" <investman@xxxxxxxxx>]

HI, 
This is the Tema smoothed MACD indicator formula:

MACD TEMA Smoothed 
shortperiods:=Input("Enter the shorter TEMAperiods: ",3,20,12);
longperiods:=Input("Enter the longer TEMAperiods: ",21,50,26);
signal:=Input("Enter the number of signalline periods: ",3,50,9);
Tema(C,shortperiods)-Tema(C,longperiods);
Mov(Tema(C,shortperiods) - Tema(C,longperiods),signal,E)

Can any one help me write an explorer for this indicator with the 
following conditions :

1.When the MACD crosses zero from below
2.When the Signal line crosses MACD from below

Thanks 




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