Create an EA using OBV and Moving Average crossing

Hi.

I need an EA based on the indicator OBV and the Moving Average (simple, exponencial,

Buy signal = OBV crossing upwards the MA;

Sell signal = OBV crossing downwards the MA;

If a position is closed by the signal, the EA should open another one in the opposite direction.

the robot will work during every day,  need to invert orders every line cross other but just will invert order after line cross the MA and a loss after cross more than a determinate  value in pips, and this value can be changed

The EA should have the following parameters included:

 - time to start;

 - time to finish;

 - end position before closing;

 - type of stop loss, take profit and trailing stop (in points or percentage);

 - stop loss, take profit and trailing stop;

 - type of moving average (simple, exponencial, 

The orders should only be executed during the working hours of the EA, even if is a stops loss or take profit order.