N1:=21;N2:=42;
WR1:100-100*(HHV(HIGH,N1)-CLOSE)/(HHV(HIGH,N1)-LLV(LOW,N1)),colormagenta;
WR2:100-100*(HHV(HIGH,N2)-CLOSE)/(HHV(HIGH,N2)-LLV(LOW,N2)),colorred;
a0:100,Linethick2,colormagenta;
a1:80,Linethick2,colormagenta;
a2:50,Linethick2,colormagenta;
a3:20,Linethick2,colormagenta;
a4:0,Linethick2,colormagenta;
DRAWICON(CROSS(a1,WR1),WR1,'sell');
DRAWICON(CROSS(WR1,a3),a3,'buy');
