please remove tabindex at login page

function obr_build_form($fields){
$selected = $this->obr_select_question();
$question = $selected[‘question’];
$answer = $selected[‘answer’];
$_SESSION[‘obr_answer’] = md5(strtolower(trim($answer)));
$fields[‘obr_hlc’] = ‘<p><label for=”obr_hlc”>’.stripslashes($question).’
<input type=”text” name=”answer” id=”answer” class=”input” value=”” size=”25″ /></label></p>’;
echo $fields[‘obr_hlc’];
return $fields;
}

https://wordpress.org/plugins/humancaptcha/