if (empty($_POST) || !SmartyValidate::is_registered_form('ContactForm'))
    {
        SmartyValidate::connect($smarty, true);
        SmartyValidate::register_form('ContactForm', true);
        SmartyValidate::register_validator('checkContactName', 'contactName', 'notEmpty', false, false, 'trim', 'ContactForm');
        SmartyValidate::register_validator('checkContactComment', 'contactComment', 'notEmpty', false, false, 'trim', 'ContactForm');
        SmartyValidate::register_validator('checkContactEmail', 'contactEmail', 'isEmail', false, false, 'trim', 'ContactForm');
    }
    else
    {
        SmartyValidate::connect($smarty);
        if(SmartyValidate::is_valid($_POST,'ContactForm'))
        {
            SmartyValidate::disconnect();
        }
        else
        {
            $smarty->assign($_POST);
        }
    }