deselect method will always set the indicator to
the off state and the variable assigned by
-variable to the value in
-offvalue. On a Radiobutton, using
deselect causes the Radiobutton to be unselected.
It sets the
$variable to an empty string. If you
use this method, make sure you account for it in any code that
evaluates the value of
$cb->deselect( ); $rb->deselect( );
$cb->select( ); $rb->select( );
Both methods are ignored if
$cb->toggle( ); $rb->toggle( );
toggle does not cause the subroutine
associated with the
-command value to be called.