code: function() {
  				var children = this._.children,
  					i;
  				for ( i = 0; i < children.length; i++ ) {
  					if ( children[ i ].getElement().$.checked ) {
  						children[ i ].getElement().focus();
  						return;
  					}
  				}
  				children[ 0 ].getElement().focus();
  			}
docs: Handler for the access key up event. Focuses the currently
  selected radio button, or the first radio button if none is selected.