if((err==1) and (ert==1) and (ero==1) and (erv==1)){
$(".button").empty();
$(".button").append('<button type="submit" name="ok" id="ok" class="btn btn-warning btn-large">Оставить отзыв</button><span>|</span><a class="btn btn-link btn-large" href="">Отмена</a>');
}