[amibroker] plz correct this stoploss formula

[rink]

Hi
i tried to create a stoploss formula but there is something wrong please 
correct it

buy=cross macd, sell =cross signal
initail stoploss is 2% but when prices up 4% stoploss move to breakeven 
buyprice


*Buy* = Cross( MACD(), Signal() );
*Sell* = Cross( Signal(), MACD() );

rink=(ApplyStop( 0, 1, 0, 1, volatile = False, ReEntryDelay = 0 ));

rin=(ApplyStop( 0, 1, 2, 1, volatile = False, ReEntryDelay = 0 ));

Hy=ValueWhen(Buy,C,1);
hhhh=HighestSince( Buy,H,1);
IIf((Hhhh> (1.04*Hy)),rink,rin);