public static synchronized Connection getConnection()
	{
		
		if (conn == null)
		{
			try
			{
				// Class.forName("com.mysql.jdbc.Driver");
				// conn = DriverManager.getConnection(endereco, usuario, password);
				conn = DriverManager.getConnection(endereco);
			}
			catch (SQLException ex)
			{
				
			}
		}
		return conn;
	}