Peaks and troughs

[John Nelson <trader@xxxx>]

What is the most effective yet most convenient way to detect peaks and 
troughs in oscillators?

Peak and Trough might be used but the docs say these indicators look 
into the future. That tells me I may not want to use these indicators.

All I want to do is detect the oscillator change of direction (smoothed 
by an MA perhaps to avoid false signals).

-- John