price and Moving Average.

I wish if someone could help me with an indicator that could measure the maximum distance between price and Moving Average.

So , let us say price now is under MA. i need the indicator to measure distance between the Low of the candle and MA. for every candle closed. and vice versa . When price is above MA, i want this indicator to measure the maxdistance (hIGH) between the price to MA.
thanx for help

I wrote an indicator several months ago called Pipsmark that does something like this. It takes a threshold pip value and will send an alert when the price hits that value above or below the specified MA. Do a search for "Pipsmark" and you find it.