var widget = require( 'saber-widget' );
require( 'saber-widget/RadioGroup' );
var group = widget.radioGroup( element );
group.on( 'valuechange', function( ev, oldValue, newValue ) {
    console.log( 'valuechange from: ' + oldValue + ', to: ' + newValue );
});
group.on( 'click', function ( ev, oldValue, newValue ) {
    console.log( 'selected value: ' + newValue );
});