functions.php

//* Register widget areas
genesis_register_sidebar( array(
	'id'          => 'after-header',
	'name'        => __( 'After Header Banner', '$text_domain' ),
	'description' => __( 'Adds a Widget Area After The Header', '$text_domain' ),
) );

add_action( 'genesis_after_header', 'after_header_widget' );

function after_header_widget() {

if ( is_front_page() && is_active_sidebar('after-header') ) {

		genesis_widget_area( 'after-header', array(
			'before' => '<div class="after-header" class="widget-area">',
			'after'	 => '</div>',
		) );



     }

}