Asi to name.
<tr>
<td>věk:</td>
<td><input name="vek" type = "text" value="<?echo $_POST["vek"]?>"></td>
</tr>
Asi to name.
<tr>
<td>věk:</td>
<td><input name="vek" type = "text" value="<?echo $_POST["vek"]?>"></td>
</tr>