Inserting data in composite types!

Hi, I have a question about how to insert data in composite types!

Imagine the exemple:

CREATE TYPE t_time AS (

a date,

b date

);

CREATE TABLE salary (

salary numeric(10,2),

t_date t_time

);

I know that if I want to insert data in the table SALARY I just have to do
like:

INSERT INTO salary VALUES (1000.00, '(2006/10/10, 2006/12/10)');

But if I have another table:

CREATE TABLE employee (

employee_id int,

name varchar(30),

emp_salary salary

)

How can I insert a single row in this table???

Thanks in advamce!