diff --git a/layouts/partials/function/langCode.html b/layouts/partials/function/langCode.html
new file mode 100644
index 0000000..68e892d
--- /dev/null
+++ b/layouts/partials/function/langCode.html
@@ -0,0 +1,9 @@
+{{- $res := false -}}
+
+{{- range . -}}
+  {{- if eq site.LanguageCode . -}}
+    {{- $res = true -}}
+  {{- end -}}
+{{- end -}}
+
+{{- return $res -}}