_SECTION_BEGIN("Chart Settings");
SetChartOptions(0,chartShowArrows|chartShowDates);
SetChartBkColor(ParamColor("Outer Panel",1));
SetChartBkGradientFill(ParamColor("Upper Chart",1),ParamColor("Lower Chart",23));
GraphXSpace=Param("GraphXSpace",10,0,100,1);
dec = (Param("Decimals",2,0,7,1)/10)+1;
bi = BarIndex();
Lbi = LastValue(BarIndex());
sbi = SelectedValue(bi);
x1= BarCount-1;
SetBarFillColor (IIf(C>O,19,IIf(C<O,24,42)));
Plot(C,"",IIf(C>O,51,IIf(C<O,33,55)),64);
I show me sme error