# JavaScript Bs_Radio Example 4

This is an example of the Radio Control.

- Using existing radio fields and the convertField() method.
- The third option "three" is the default value.
- The labels (clickable captions "one", "two" and "three") still work after the transformation because the id uses the convention "fieldname underscore fieldvalue".

Standard Radio Fields:
option 1 | one
option 2 | two
option 3 | three
| Converted into Bs_Radio fields:
option 1 | one
option 2 | two
option 3 | three