Moving Averages in multiple timeframes

I want an indicator/EA that uses three timeframes (short-term, medium-term and long-term).

I would like to be able to specify the actual timeframes.E.g. short-term might be 5 minutes or 60 minutes, while medium-term might be 60 minutes or 4hrs and long-term is daily or weekly. It could be any period.

The indicator also involves 3  simple moving averages (fast, medium and slow). I would like to be able to specify the parameters for the simple moving averages.

Other indicators involved:

1.Parabolic SAR(psar)

2.Stochastics

buy signal: Current timeframe will always be the short-term. Buy if :

1. on the current timeframe, price closes above all 3 SMAs.

2. in the medium timeframe, price is above the medium and slow SMA.

3. In the long-term timeframe, price is above the slow SMA.

4. On the current (i.e. short-term) timeframe, price is above psar. The signal should be activated as soon as soon as psar gives buy signal(not at the close of the bar).

Multiple positions should be possible.

Do reverse for sell signal.