Index: /CKEditor/tests/js/manual.js
===================================================================
--- /CKEditor/tests/js/manual.js	(revision 7120)
+++ /CKEditor/tests/js/manual.js	(revision 7121)
@@ -1,5 +1,17 @@
+function isEmpty(obj)
+{
+    for(var prop in obj) {
+        if(obj.hasOwnProperty(prop))
+            return false;
+    }
+    return true;
+}
+
 YAHOO.util.Event.addListener( window, 'load', function ()
 {
-	editor = CKEDITOR.appendTo( document.body );
-	editor.setData( '<p>This is some <strong>sample text</strong>. You are using <a href="http://ckeditor.com">CKEditor</a>.</p>' );
+	if( isEmpty( CKEDITOR.instances ) )
+	{
+		var editor = CKEDITOR.appendTo( document.body );
+		editor.setData( '<p>This is some <strong>sample text</strong>. You are using <a href="http://ckeditor.com">CKEditor</a>.</p>' );
+	}
 } );