Create me an EA

I need a expert advisor that will close the opposite side of an order for that symbol. Examples include EURUSD opens a BUY then opens a SELL order so that BUY order closes and vise versa if EURUSD opens a BUY order then the SELL closes. Very straightforward. Must work on open orders only no stop or limit orders should be affected. Must work for the current symbol only example including EURUSD closes AUDCAD orders. EURUSD should only be closing EURUSD orders. This is a easy ea to create.