@Override
	public Response deleteFile(String CorpNum, int ItemCode, String MgtKey,
			String FileID) throws PopbillException {
		
		return deleteFile(CorpNum, ItemCode, MgtKey, FileID, null);
	}
@ Override public Response deleteFile ( String CorpNum , int ItemCode , String MgtKey , String FileID ) throws PopbillException { return deleteFile ( CorpNum , ItemCode , MgtKey , FileID , null ) ; }
/* (non-Javadoc)
@see com.popbill.api.StatementService#deleteFile(java.lang.String, java.number.Integer, java.lang.String, java.lang.String)