to solve the problem

Design & Implement an online sales record using JAVASCRIPT program that can handle salesmen records of ABC Company. Each salesman has unique 4 digit id #, name, salary, monthly sale & commission (commission is computed depending on value of monthly sale). Net income of a salesman is salary plus commission. Conditions for calculating commission are as follows:

 Commission is 20% of monthly sale, if sale is equal to or greater than 15,000.
 Commission is 15% of monthly sale, if sale is equal to or greater than 10,000 and less than 15,000.
 Commission is 10% of monthly sale, if sale is equal to or greater than 8,000 and less than 10,000.
 Commission is 5% of monthly sale, if sale is equal to or greater than 5,000 and less than 8,000.
 No Commission, if sale is less than 5,000.

You program can be menu driven with following options:

1. Addition of Records (of one or more salesmen)
2. Display Records of all Salesmen.
3. Search & Display Record of particular salesman (you can search the sales man
With his id #.)
4. Finding & Displaying Record of Salesman with minimum net income.
5. Finding & Displaying Record of Salesman with maximum net income.
6. Displaying Average net income
7. Exit