$(window).ready(function () {
            var token = 'eyJocmQiOiJodHRwczovL3VrLXVtZy5jb20vdW0tZm9ybXMvQ3JlZXBlck5ld3NsZXR0ZXJTaWdudXAuaHRtbCIsInN2YyI6IjA1MDE3MDE2LTgyQUEtMTFFRi1CQTRELTYyOTI4NjUxNDAxMSIsInRzcCI6MTcyODA4NTIyMX0=.M3Q1c0MzSFpwNHVKajR3bnRxbXJmd3RyM2hlVSs3SlJSV01VODF1TXB2OD0=';
            if ($('#vv_captcha_sign').length) {
                $('#vv_captcha_sign').val(token);
            }
            else {
                $('<input>').attr({ type: 'hidden', id: 'vv_captcha_sign', name: 'vv_captcha_sign', value: token }).appendTo('#reg_form');
            }
        });