How Show up Banner Ads below Primary Menu on Genesis Child Themes - http://www.wpstuffs.com/banner-ads-below-menu-on-genesis-child-themes

ad-widget-genesis.php

/** Register Topads widget area  */

genesis_register_sidebar( array(
    'id'    => 'topads',
    'name'    => __( 'topads', 'custom-theme' ),
    'description'    => __( 'Here you can place 720*90 Ad', 'custom-theme' ),
) );

/** Add topads widget after the primary menu */

add_action( 'genesis_before_content', 'custom_theme_topads' );
function custom_theme_topads() {
    genesis_widget_area( 'topads', array(
        'before' => '<div id="topads widget-area">',
    ) );
}