Javascript is used on this site to facilitate error checking. This helps you by:
- Ensuring that your data is correct prior to submitting it to the server
- Prevents incomplete and/or incorrect forms and statements
- Data is checked when submitted to the server as well, resulting in errors and redirection back to the form
- This means you will have to re-enter data due to session and cookie settings on the page
- Enabling javascript will prevent this - the choice is yours
