function NTV_ActivateCairnStones(){

	_cairnStoneIds = [17, 18, 19, 20, 21]; // cairn stone id's

	for(var i = 0; i <  _cairnStoneIds.length ; i++){

		var _toBeClicked = NTC_FindUnit(NTC_UNIT_OBJECT, _cairnStoneIds[i], 7); // randomly picked lucky #7 for retry

		if(_toBeClicked){
			if(NTM_GetCloserIntS(_toBeClicked)){
				NTC_DoClick(NTC_CLICK_LDOWN, NTC_SHIFT_NONE, _toBeClicked);
			}
			NTC_Delay(100);
			if(_toBeClicked.mode){
				_cairnStoneIds.splice(--i, 1);
			}
		}
	}
}