EA BASED ON CROSSOVER OF TWO EMAS

upside, it should immediately close the sell position and open a buy position at that exact price at the time of the crossover. 

This can be translated as follows:

*if (the value of the fast EMA is +1 greater than the value of the slow EMA)

{a buy market order should be executed immediately and the sell position if any should be closed} 

*else(if the value of the fast EMA is -1 less than the value of the slow EMA)

{a sell market order should be executed immediately and the buy position if any should be closed}

I should be able to set stop loss and take profit only if i want to, otherwise trades should be automatically closed and opened when the above conditions are met.