| variables:
 checkHigh(0),checkLow(0);
 
 
 once begin
 checkHigh=High;
 checkLow=Low; value1=0;
 end;
 
 if close > checkHigh then begin
 checkHigh=close; value1=1;
 end;
 if close < checkLow then begin
 checkLow=close; value1=2;
 end;
 
 if value1=1 then begin
 Plot1(checkHigh ,"Box High");
 NoPlot(2); checkLow=Low;
 end;
 if value1=2 then begin
 Plot2(checkLow ,"Box Low");
 NoPlot(1); checkHigh=High;
 end;
 
 |