function OnCalculate(index)

   if index == 1 and Settings.ChartId ~= '' then
      DelAllLabels(Settings.ChartId)
      AddedLabels = {}
   end
    
   if index == 1 then
      DSInfo = getDataSourceInfo()        
      min_price_step = getParamEx(DSInfo.class_code, DSInfo.sec_code, "SEC_PRICE_STEP").param_value
   end
   
   return myFunc(index, Settings, 37)
end

if AddedLabels[1] ~= nil then
   SetLabelParams(Settings.ChartId, AddedLabels[1], label)
else
   local LabelID = AddLabel(Settings.ChartId, label)
               
   if LabelID ~=nil and LabelID ~= -1 then
      AddedLabels[1] = LabelID
   end   
end

if AddedLabels[2] ~= nil then
   SetLabelParams(Settings.ChartId, AddedLabels[2], label)
else
   local LabelID = AddLabel(Settings.ChartId, label)
               
   if LabelID ~=nil and LabelID ~= -1 then
      AddedLabels[2] = LabelID
   end   
end