style="COLOR: #FFFFFF; BACKGROUND-COLOR: #333333; HEIGHT: 25 px; WIDTH: 40px">
      </td>
      <td width="50">
        <input type="button" name="ln" value="ln" onClick="Ln()" style="COLOR: #FFFFFF; BACKGROUND-COLOR: #333333; HEIGHT: 25 px; WIDTH: 40px">
      </td>
      <td width="20"> </td>
      <td width="50">
        <input type="button" name="1/2" value="1/2" onClick="form.input.value += '0.5'" style="COLOR: #B3B300; BACKGROUND-COLOR: #000000; HEIGHT: 25 px; WIDTH: 40px">
      </td>
      <td widt