diff --git a/admin/templates/js/main.js b/admin/templates/js/main.js
index 340a105..8f72032 100644
--- a/admin/templates/js/main.js
+++ b/admin/templates/js/main.js
@@ -89,6 +89,7 @@ function openLinkWindow(target, doc, document_alias) {
 }
 
 function openFileWindow(id, type, target) {
+    if (typeof target === 'undefined' || target === null || target === '') {target = id;}
     if (typeof width == 'undefined' || width == '') var width = screen.width * 0.6;
     if (typeof height == 'undefined' || height == '') var height = screen.height * 0.6;
     if (typeof doc == 'undefined') var doc = 'Title';