Add DuracellTomi's Google Tag Manager Plugin Code After Body Tag for Genesis Theme Framework

functions.php

<?php

// Do not include the PHP tag above.

/* Add DuracellTomi's Google Tag Manager for WordPress Plugin Code After Body Tag */
add_action('genesis_before', 'google_tag_manager');
function google_tag_manager() { ?>
	<!-- Google Tag Manager -->
		<?php if ( function_exists( 'gtm4wp_the_gtm_tag' ) ) { gtm4wp_the_gtm_tag(); } ?>
	<!-- End Google Tag Manager -->
<?php
}