diff --git a/ajax/getalbuminfo.php b/ajax/getalbuminfo.php
index d17be87..85d1315 100644
--- a/ajax/getalbuminfo.php
+++ b/ajax/getalbuminfo.php
@@ -7,6 +7,7 @@ $data["albumcontents"] = "";
 $data["albumtitle"] = "";
 $data["albumdescription"] = "";
 $data["images"] = array();
+$data["loggedin"] = $currentuser->isLoggedIn();
 
 if ( $_SESSION['currentalbum'] != 0 ) {
     $album = new Album($_SESSION['currentalbum']);
diff --git a/ajax/setthumbnail.php b/ajax/setthumbnail.php
index ec8c4de..b482ff0 100644
--- a/ajax/setthumbnail.php
+++ b/ajax/setthumbnail.php
@@ -20,6 +20,7 @@ $album->setThumbnail($image->getFileName());
 $album->save();
 
 $data["success"] = true;
+$data["loggedin"] = $currentuser->isLoggedIn();
 $data["album"] = $album;
 
 sendResponse($data);
diff --git a/js/scalemodels.js b/js/scalemodels.js
index 46100ec..474b986 100644
--- a/js/scalemodels.js
+++ b/js/scalemodels.js
@@ -106,7 +106,9 @@ function getAlbumInfo() {
             $("#albumdescription").text(data.albumdescription);
             $("#albumcontents").html(data.albumcontents);
             if ( data.currentalbum != 0 ) {
-                $("#griditem_"+data.thumbnailid).addClass("activethumbnail");
+                if ( data.loggedin ) {
+                    $("#griditem_"+data.thumbnailid).addClass("activethumbnail");
+                }
                 $(".btn_setthumbnail").click(function() { setAlbumThumbnail($(this)) });
             }
             $(".albumthumbnail").click(function() {
@@ -142,7 +144,7 @@ function setAlbumThumbnail(clickedElement) {
         },
         success: function(data, stat, jqo) {
             $(".thumbnail_grid").removeClass("activethumbnail");
-            $("#griditem_"+imageid).addClass("activethumbnail");
+            if ( data.loggedin ) $("#griditem_"+imageid).addClass("activethumbnail");
         },
         error: function(jqp, status, error) {
             toastr.error("Error setting thumbnail!\n" + error, "Server Error");