Facebook and Disqus Comments

facebook-disqus.php

/**
 * Facebook and Disqus Comments - drop-in replacement for comments.php
 */
function dbt_facebook_or_disqus_comments() {

	if ( comments_open() && get_option( 'dbt_facebook_comments_app_id' ) ) { 
		// If Facebook Comments enabled.
		if ( get_option( 'WPLANG' ) ) { $language = get_option( 'WPLANG' ); }
		else { $language = 'en_US'; } ?>
		<div id="fb-root"></div>
		<script>(function(d, s, id) {
			var js, fjs = d.getElementsByTagName(s)[0];
			if (d.getElementById(id)) return;
			js = d.createElement(s); js.id = id;
			js.src = "//connect.facebook.net/<?php esc_attr_e( $language ); ?>/sdk.js#xfbml=1&version=v2.4&appId=<?php esc_attr_e( get_option( 'dbt_facebook_comments_app_id' ) ); ?>";
			fjs.parentNode.insertBefore(js, fjs);
		}(document, 'script', 'facebook-jssdk'));</script>
		<div class="fb-comments" data-href="<?php echo get_permalink(); ?>" data-numposts="50" data-order-by="reverse_time" data-width="100%"></div><?php 

	}
	elseif ( comments_open() && get_option( 'dbt_disqus_shortname' ) ) { ?>
		<?php // If Disqus Comments enabled ?>
		<div id="disqus_thread"></div>
		<script type="text/javascript">
			var disqus_shortname = '<?php esc_attr_e( get_option( 'dbt_disqus_shortname' ) ); ?>';
			(function() {
				var dsq = document.createElement('script'); dsq.type = 'text/javascript'; dsq.async = true;
				dsq.src = '//' + disqus_shortname + '.disqus.com/embed.js';
				(document.getElementsByTagName('head')[0] || document.getElementsByTagName('body')[0]).appendChild(dsq);
			})();
		</script><?php

	}

}