private function AddAreasField()
    {
        $name = 'Areas';
        $field = Input::Text($name, join(', ' , $this->areaNames));
        $this->AddField($field);
        if ($this->layout->Exists())
        {
            $field->SetHtmlAttribute('readonly', 'readonly');
        }
        else
        {
            $this->SetTransAttribute($name, 'placeholder');
            $this->SetRequired($name);
        }
    }