WP Single Post Navigation -- constants and filters for customizing and branding

gistfile1.aw

<?php

// since plugin version v1.5:

// Constants:

/**
 * WP Single Post Navigation: Reverse link direction
 */
define( 'WPSPN_REVERSE_LINK_DIRECTION', TRUE );


// Filters:
/**
 * Customize previous post link:
 * @link https://gist.github.com/1574571
 */

/**
 * Customize next post link:
 * @link https://gist.github.com/1574576
 */

add_filter( 'wpspn_filter_previous_post_tooltip', 'custom_wpspn_previous_post_tooltip_output' );
/** WP Single Post Navigation: Custom Previous Tooltip Output */
function custom_wpspn_previous_post_tooltip_output() {
	return __( 'Custom previous post:', 'your-text-domain' );
}

add_filter( 'wpspn_filter_next_post_tooltip', 'custom_wpspn_next_post_tooltip_output' );
/** WP Single Post Navigation: Custom Next Tooltip Output */
function custom_wpspn_next_post_tooltip_output() {
	return __( 'Custom next post:', 'your-text-domain' );
}

Note: The above codes work with plugin version 1.5 or higher!

Extended explanation can be found at the plugin's page "FAQ" section at the bottom:
http://wordpress.org/extend/plugins/wp-single-post-navigation/faq/

Download "WP Single Post Navigation" plugin at wordpress.org:
http://wordpress.org/extend/plugins/wp-single-post-navigation/