Builder/MidPropTree.js

diff --git a/Builder/MidPropTree.js b/Builder/MidPropTree.js
index 79b543f..162b422 100755 (executable)
--- a/Builder/MidPropTree.js
+++ b/Builder/MidPropTree.js
@@ -167,7 +167,7 @@ MidPropTree = new XObject({
                         showData : function (type) 
                         {
                             this.el.clear();
-                            if (!MidPropTree.activeElement) {
+                            if (!MidPropTree.activeElement || !type) {
                                 return; // no active element
                             }
                             var LeftTree       = imports.Builder.LeftTree.LeftTree;