$('#postform table tbody').prepend(
    '<tr class="post-subject">' +
        '<td class="label desktop">' +
            '<label for="subject">Имя</label>'+
        '</td>' +
        '<td>' +
            '<input type="text" maxlength="150" id="name" name="name" value="" placeholder="Имя">' +
        '</td>' +
    '</tr>'
);