Bug 185498: Don't rely on ::CreateElement to create html elements. Also make sure we insert html-<tbody>s when appropriate

r=Pike sr=peterv

content/xslt/src/xslt/txMozillaXMLOutput.h

@@ -202,6 +202,7 @@ private:
 
     PRPackedBool mInTransform;
     PRPackedBool mCreatingNewDocument;
+    PRPackedBool mDocumentIsHTML;
  
     enum txAction { eCloseElement = 1, eFlushText = 2 };
 };