Share en like buttons nieuwsbriefformulier pop-up javascript

Hoi, Ik wil share en like buttons toevoegen in een nieuwsbriefformulier pop-up scherm. Het is de bedoeling dat degene die zich op een nieuwsbrief heeft aangemeld, share en like buttons krijgt te zien.
Alleen moet het in onderstaande bestanden verwerkt worden. Kan iemand me hiermee verder helpen?

<?php
	$lang['title'] = "tekst";
	$lang['description'] = "tekst";
	$lang['lang_en'] = "English";
	$lang['lang_nl'] = "Nederlands";		
	$lang['subscribe_and_updated'] = "Subscribe and stay updated!";
	$lang['signing_up'] = "tekst";
	$lang['join_waiting_list'] = "Join Waiting List";
	$lang['get_notified'] = "Get Notified";	
	$lang['subscription_complete'] = "tekst.<br>tekst.<br>tekst<br>Don't forget to check your mailbox.";
	$lang['mailaddress_incorrect'] = "Your email address is incorrect.<br>Please check it and try again.";
?>

HTML

        <script>
        var lang = [];
        lang['subscription_complete'] = <?php echo json_encode($lang['subscription_complete']); ?>;
        lang['mailaddress_incorrect'] = <?php echo json_encode($lang['mailaddress_incorrect']); ?>;
        </script>

[b]JAVA

$(".message").html('<p class="notify-valid">'+lang['subscription_complete']).fadeIn(); 

$(".message").html('<p class="notify-valid">'+lang['mailaddress_incorrect']).fadeIn();