diff --git a/plugins/Realtime/RealtimePlugin.php b/plugins/Realtime/RealtimePlugin.php
index 352afcf785..7a40cdca31 100644
--- a/plugins/Realtime/RealtimePlugin.php
+++ b/plugins/Realtime/RealtimePlugin.php
@@ -106,7 +106,9 @@ class RealtimePlugin extends Plugin
             $realtimeUI = ' RealtimeUpdate.initActions("'.$url.'", "'.$timeline.'", "'. $pluginPath .'");';
         }
 
+        $i18n = $this->_getMessages();
         $script = ' $(document).ready(function() { '.
+          'RealtimeUpdate._messages=' . json_encode($i18n) . ';' .
           $realtimeUI.
           $this->_updateInitialize($timeline, $user_id).
           '}); ';
@@ -326,6 +328,28 @@ class RealtimePlugin extends Plugin
         return array('plugins/Realtime/realtimeupdate.js');
     }
 
+    /**
+     * Any i18n messages that need to be loaded at runtime.
+     * @return array of string key to output text string pairs
+     */
+    function _getMessages()
+    {
+        return array(
+            // TRANS: Text label for realtime view "play" button, usually replaced by an icon.
+            'play' => _m('BUTTON', 'Play'),
+            // TRANS: Tooltip for realtime view "play" button.
+            'play_tooltip' => _m('TOOLTIP', 'Play'),
+            // TRANS: Text label for realtime view "pause" button
+            'pause' => _m('BUTTON', 'Pause'),
+            // TRANS: Tooltip for realtime view "pause" button
+            'pause_tooltip' => _m('TOOLTIP', 'Pause'),
+            // TRANS: Text label for realtime view "popup" button, usually replaced by an icon.
+            'popup' => _m('BUTTON', 'Pop up'),
+            // TRANS: Tooltip for realtime view "popup" button.
+            'popup_tooltip' => _m('TOOLTIP', 'Pop up in a window'),
+        );
+    }
+
     function _updateInitialize($timeline, $user_id)
     {
         return "RealtimeUpdate.init($user_id, \"$this->replyurl\", \"$this->favorurl\", \"$this->repeaturl\", \"$this->deleteurl\"); ";
diff --git a/plugins/Realtime/realtimeupdate.js b/plugins/Realtime/realtimeupdate.js
index 25dc12d584..f764ca738d 100644
--- a/plugins/Realtime/realtimeupdate.js
+++ b/plugins/Realtime/realtimeupdate.js
@@ -40,6 +40,7 @@ RealtimeUpdate = {
      _documenttitle: '',
      _paused:false,
      _queuedNotices:[],
+     _messages:{},
 
      init: function(userid, replyurl, favorurl, repeaturl, deleteurl)
      {
@@ -261,9 +262,10 @@ RealtimeUpdate = {
         RealtimeUpdate.addNoticesHover();
 
         $('#realtime_playpause').remove();
-        $('#realtime_actions').prepend('<li id="realtime_playpause"><button id="realtime_pause" class="pause" title="Pause">Pause</button></li>');
-
-        $('#realtime_pause').bind('click', function() {
+        $('#realtime_actions').prepend('<li id="realtime_playpause"><button id="realtime_pause" class="pause"></button></li>');
+        $('#realtime_pause').text(RealtimeUpdate._messages['pause'])
+                            .attr('title', RealtimeUpdate._messages['pause_tooltip'])
+                            .bind('click', function() {
             RealtimeUpdate.removeNoticesHover();
             RealtimeUpdate.showPlay();
             return false;
@@ -274,9 +276,10 @@ RealtimeUpdate = {
      {
         RealtimeUpdate.setPause(true);
         $('#realtime_playpause').remove();
-        $('#realtime_actions').prepend('<li id="realtime_playpause"><span id="queued_counter"></span> <button id="realtime_play" class="play" title="Play">Play</button></li>');
-
-        $('#realtime_play').bind('click', function() {
+        $('#realtime_actions').prepend('<li id="realtime_playpause"><span id="queued_counter"></span> <button id="realtime_play" class="play"></button></li>');
+        $('#realtime_play').text(RealtimeUpdate._messages['play'])
+                           .attr('title', RealtimeUpdate._messages['play_tooltip'])
+                           .bind('click', function() {
             RealtimeUpdate.showPause();
             return false;
         });
@@ -334,10 +337,11 @@ RealtimeUpdate = {
 
      initAddPopup: function(url, timeline, path)
      {
-         $('#realtime_timeline').append('<button id="realtime_popup" title="Pop up in a window">Pop up</button>');
-
-         $('#realtime_popup').bind('click', function() {
-             window.open(url,
+         $('#realtime_timeline').append('<button id="realtime_popup"></button>');
+         $('#realtime_popup').text(RealtimeUpdate._messages['popup'])
+                             .attr('title', RealtimeUpdate._messages['popup_tooltip'])
+                             .bind('click', function() {
+                window.open(url,
                          '',
                          'toolbar=no,resizable=yes,scrollbars=yes,status=no,menubar=no,personalbar=no,location=no,width=500,height=550');