Put header image ABOVE the menu

I would like to have my header image go above the menu. Someone in another forum suggested I make a child theme and put the following code in functions.php file: function catchbase_featured_image_display() { add_action( 'catchbase_after_header', 'catchbase_featured_overall_image', 10 ); } // catchbase_featured_image_display This however, didn't fix the problem. Any suggestions?