Code:
function run() 
{
	var *ClosePrice = series(priceClose());
	var *EMA5 = series(EMA(ClosePrice,5));
	var *EMA8 = series(EMA(ClosePrice,8));
	
	if(crossUnder(EMA5,EMA8))
	    enterShort();
	if(crossOver(EMA5,EMA8)) 
	    enterLong();
	if(EMA5[1] > EMA8[1] && EMA5[0] > EMA8[0])
	    enterLong();
	if(EMA5[1] < EMA8[1] && EMA5[0] < EMA8[0]) 
	    enterShort();
}