<input type="text" name="Esn1" size="10" maxlength="4" tabindex="1"><font size="2"> </font>
    </font> </td>
    <td align="center">
    <font face="Verdana">
    <input type="text" name="Esn2" size="10" tabindex="2" maxlength="4"></font></td>
    <td align="center">
    <font face="Verdana">
    <input type="text" name="Esn3" size="10" tabindex="3" maxlength="4"></font></td>
    <td align="center">
    <font face="Verdana">
    <input type="text" name="Esn4" size="10" tabindex="4" maxlength="4"><font size="2"> </font>
    </font> </td>
    <td align="center">
    <font face="Verdana">
    <input type="text" name="Esn5" size="10" tabindex="5" maxlength="4"></font></td>
esn1 e 4 karakter limit verdim 4 karakter yazınca kişi esn2 ye oto nasıl geçer?