public void insert(Connection conn) throws SQLException {
		if (isValid())
		{
			PreparedStatement stmt = conn.prepareStatement("INSERT INTO crmusers VALUES (?, ?, ?, ?, ?)");
			stmt.setInt(1, id);
			stmt.setString(2, firstName);
			stmt.setString(3, lastName);
			stmt.setString(4, gender);
			stmt.setInt(5, age);
			stmt.execute();
		}
	}