[animhotep]

<form id="calc">
  <select class="conv type" id="calc_conv_type">
    <option data-unit="m">Длина</option>
    <option data-unit="m2">Площадь</option>
    <option data-unit="m3">Объём</option>
    <option data-unit="kg">Вес</option>
    <option data-unit="kg/m3">Плотность</option>
    <option data-unit="h">Сила</option>
    <option data-unit="pa">Давление</option>
    <option data-unit="1/min">Частота</option>
    <option data-unit="m/sec">Скорость</option>
    <option data-unit="sec">Время</option>
  </select>
  <div id="calc_conv_content">
    <div data-index="0">
      <input type="number" min="0" id="calc_conv_0">
      <span>м</span>
    </div>
    <div data-index="1">
      <input type="number" min="0" id="calc_conv_1">
      <span>мм</span>
    </div>
    <div data-index="2">
      <input type="number" min="0" id="calc_conv_2">
      <span>дюйм</span>
    </div>
    <div data-index="3">
      <input type="number" min="0" id="calc_conv_3">
      <span>фут</span>
    </div>
    <div class="reset">
      <a class="vis">Очистить</a>
    </div>
  </div>
</form>