private LEVEL convertLv(String lv){
		if(lv.equalsIgnoreCase("VSB")) return LEVEL.VSB;
		if(lv.equalsIgnoreCase("VSI")) return LEVEL.VSI;
		if(lv.equalsIgnoreCase("VSE")) return LEVEL.VSE;
		if(lv.equalsIgnoreCase("PSB")) return LEVEL.PSB;
		if(lv.equalsIgnoreCase("PSI")) return LEVEL.PSI;
		if(lv.equalsIgnoreCase("PSE")) return LEVEL.PSE;
		return LEVEL.PD;
	}