a_string" type="text" class="input-text required-entry" data-bind="value: captchaValue(), attr: {id: 'captcha_' + formId, 'data-scope': dataScope}" autocomplete="off"/>
        <div class="nested">
            <div class="field captcha no-label">
                <div class="control captcha-image">
                    <img data-bind="attr: {
                                        alt: $t('Please type the letters and numbers below'),
                                        title: $t('Please type the letters 