| GETVALUE | Get radio button status. |
| SETVALUE | Set radio button selected/unselected. |
| UIRADIOBUTTON | Constructor. |
UIRadioButton(<radiogroup>, <text>) --> UIRadioButton object.
| <radiogroup> | - Object UIRadioGroup. Radio buttons group. |
| <text> | - String. Radio button label. |
| Returns : | NIL |