diff --git a/javascript/LeftAndMain.js b/javascript/LeftAndMain.js
index 5a1d2d82..687b1f7a 100644
--- a/javascript/LeftAndMain.js
+++ b/javascript/LeftAndMain.js
@@ -881,14 +881,16 @@ function nullConverter(url) {
 Behaviour.register({
     'textarea.htmleditor' : {
         initialize : function() {
-            tinyMCE.execCommand("mceAddControl", true, this.id);
-            this.isChanged = function() {
-                return tinyMCE.getInstanceById(this.id).isDirty();
-            }
-            this.resetChanged = function() {
-                inst = tinyMCE.getInstanceById(this.id);
-                if (inst) inst.startContent = tinymce.trim(inst.getContent({format : 'raw', no_events : 1}));
-            }
+            if(typeof tinyMCE != 'undefined'){
+				tinyMCE.execCommand("mceAddControl", true, this.id);
+	            this.isChanged = function() {
+	                return tinyMCE.getInstanceById(this.id).isDirty();
+	            }
+	            this.resetChanged = function() {
+	                inst = tinyMCE.getInstanceById(this.id);
+	                if (inst) inst.startContent = tinymce.trim(inst.getContent({format : 'raw', no_events : 1}));
+	            }
+			}
         }
     }
 })