COMBINING RSI WITH RSI for Amibroker (AFL)

function KST() 
{ 
   p1 = MA( ROC(Close,10), 10); 
   p2 = MA( ROC( Close, 15), 10 ); 
   p3 = MA( ROC( Close, 20), 10 ) ; 
   p4 = MA( ROC( Close, 30), 15); 

  return p1 + 2 * p2 + 3 * p3 + 4 * p4; 
} 

Buy = Cross( RSI( 17 ), 60 ) AND C > MA( C, 40 ); 
Sell = Cross( 40, RSI( 17 ) ) OR C < MA( C, 40 ); 

InDownTrend = Flip( Sell, Buy ); 

CBuy = Cross( RSI( 5 ), 60 ) AND C > MA( C, 10 ) AND InDownTrend; 
CSell = ( Cross( 40, RSI( 5 ) ) OR C < MA( C, 10 ) ) AND InDownTrend; 

Buy = Buy OR CBuy; 
Sell = Sell OR CSell; 

Plot( KST(), "KST", colorGreen ); 
Plot( RSI( 5 ), "RSI5", colorRed ); 
Plot( RSI( 17 ), "RSI17", colorBlue );