Fixed test whether or not tinyMCE is available.

javascript/src/Helper/tinyMCE.js

@@ -27,7 +27,7 @@ QfqNS.Helper = QfqNS.Helper || {};
      * @name QfqNS.Helper.jqxEditor
      */
     var tinyMce = function () {
-        if (!tinymce) {
+        if (typeof tinymce === 'undefined') {
             return;
         }
 
@@ -68,7 +68,7 @@ QfqNS.Helper = QfqNS.Helper || {};
     };
 
     tinyMce.prepareSave = function () {
-        if (!tinymce) {
+        if (typeof tinymce === 'undefined') {
             return;
         }