--- a/mercurial/templates/static/mercurial.js	Fri Sep 06 13:30:58 2013 +0400
+++ b/mercurial/templates/static/mercurial.js	Fri Sep 06 13:30:58 2013 +0400
@@ -341,3 +341,7 @@
     doc.documentElement.innerHTML = html;
     return doc;
 }
+
+function appendFormatHTML(element, formatStr, replacements) {
+    element.insertAdjacentHTML('beforeend', format(formatStr, replacements));
+}