Genesis Previous & Next Links

post_nav_links.php

<?php
/*Previous & Next Links*/
add_action( 'loop_end', 'custom_single_post_nav', 12 );
function custom_single_post_nav() {

	if ( ! is_singular( array( 'post', 'reviews', 'bundles', 'books' ) ) )
		return;

	echo'<nav class="post-navigation">';
	echo'<div class="nav-links">';
	
	previous_post_link( '<div class="nav-previous">%link</div>' );
	next_post_link( '<div class="nav-next">%link</div>' );
	
    echo'</nav>';
	echo'</div>';
}

woo_nav_links.php

<?php
/*Previous & Next Links Woocommerce*/
add_action( 'loop_end', 'custom_single_product_nav', 15 );
function custom_single_product_nav() {

	if ( ! is_singular('product' ) )
		return;

	echo'<nav class="post-navigation">';
	/*echo'<div class="nav-links">';*/
	
	previous_post_link( '<div class="nav-previous">%link</div>' );
	next_post_link( '<div class="nav-next">%link</div>' );
	
      echo'</nav>';
	/*echo'</div>';*/
}