diff --git a/js/app.js b/js/app.js
index 1c00311..105bf92 100644
--- a/js/app.js
+++ b/js/app.js
@@ -256,9 +256,11 @@ function loadTxt() {
 }
 
 function saveTxt() {
-    var txt = textArea.elem.val();
-    //console.log('saveTxt', videoHash, txt.length);
-    globalUser.set_txt(videoHash, txt);
+    if (textArea) {
+        var txt = textArea.elem.val();
+        //console.log('saveTxt', videoHash, txt.length);
+        globalUser.set_txt(videoHash, txt);
+    }
 }
 
 function saveContent(content, type, path) {