上下两行确定按钮，为什么点击上面的确定，下面的确定按钮变暗

Question

如题！！！！！！！！！！

Answer 1

                  <form method="post" name="UploadFirmware" action="/cgi-bin/upload.cgi" enctype="multipart/form-data">
                    <table border="1" cellpadding="2" cellspacing="1" width="540">
                      <tbody>
                        <tr>
                          <td class="title" colspan="2" id="uploadFW">Update1</td>
                        </tr>
                        <tr>
                          <td class="head" id="uploadFWLocation">Location:</td>
                          <td>
                            <input name="filename" size="20" maxlength="256" type="file">
                          </td>
                        </tr>
                      </tbody>
                    </table>
                    <input value="Apply" id="uploadFWApply" name="UploadFirmwareSubmit" type="submit" onClick="return uploadFirmwareCheck();">
&nbsp;&nbsp;
                  </form>
                  <form method="post" name="UploadBootloader" action="/cgi-bin/upload_bootloader.cgi" enctype="multipart/form-data">
                    <table border="1" cellpadding="2" cellspacing="1" width="540">
                      <tbody>
                        <tr>
                          <td class="title" colspan="2" id="uploadBoot">Update2</td>
                        </tr>
                        <tr>
                          <td class="head" id="uploadBootLocation">Location:</td>
                          <td>
                            <input name="filename2" size="20" maxlength="256" type="file">
                          </td>
                        </tr>
                      </tbody>
                    </table>
                    <input value="Apply" id="uploadBootApply" name="UploadBootloaderSubmit" onclick="return formBootloaderCheck();" type="submit">
&nbsp;&nbsp;
                  </form>
                  <br>
                </td>
              </tr>
            </tbody>
        </table></td>
        <td width="150" height="100%">

Answer 2

html是没问题的，就看你那js里是啥了