public Anvandare hamtaAnvandare(String personnummer){
				Anvandare anvandare = new Anvandare();
				try{
					// H�mta data ifr�n Person-tabellen
					connection = getConnection();
					preparedStatement = connection.prepareStatement("SELECT * from person WHERE Personnummer = ?");
					preparedStatement.setString(1, personnummer);
					resultSet = preparedStatement.executeQuery();
					
					// Skapa ett nytt objekt av typen Anvandare med hj�lp av datan.
					while(resultSet.next()){
						anvandare = new Anvandare(resultSet.getString(1), resultSet.getString(2), resultSet.getString(3) 
								, resultSet.getString(4), resultSet.getString(5), resultSet.getString(6), resultSet.getString(7)
								,resultSet.getString(8), resultSet.getString(9), resultSet.getString(10));
					}
					// H�mta personens roll.
					preparedStatement = connection.prepareStatement("SELECT * FROM roll WHERE Roll IN (SELECT Roll FROM rollinnehav WHERE Personnummer = ?)");
					preparedStatement.setString(1, personnummer);
					resultSet = preparedStatement.executeQuery();
					// Skapa ett nytt objekt av typen Roll med hj�lp av datan.
					if(resultSet.next()){
						anvandare.setRoll(new Roll(resultSet.getString(1), resultSet.getString(2)));
					}
					return anvandare;
				}
				catch(SQLException sqle){
					System.out.println(sqle.getMessage());
					return anvandare;
				}
			    finally {
				      if (connection != null) 
				        try {connection.close();} catch (SQLException e) {}
				      }

			}