<form name="mes_form" method="POST" enctype="multipart/form-data">
        <fieldset id="mes_data">
            <input type="text" name="mes_name" placeholder="Ваше имя" class="message-input" />
            <input type="text"  name="mes_email" placeholder="Ваш адрес почты" class="message-input" />
            <input type="hidden" name="mes_check" />
            <textarea name="mes_text" placeholder="Ваше сообщение" class="message-input"></textarea>
        </fieldset>
        <fieldset id="mes_inputs">
            <input type="file" name="mes_files[]" id="message-files" placeholder="Файлы для загрузки" class="message-input" size="0" multiple/>
            <input type="submit" name="mes_submit" value="Отправить" id="message-submit" class="message-input" />
        </fieldset>
        <fieldset id="mes_alerts">
            <div id="mes_file-size"></div>
            <div class="success_box">Обязательные для отправки поля: имя, email</div>
            <div class="error_box"></div>
        </fieldset>
    	</form>