dedecms数据库内容替换安全确认码不显示怎么解决

//  if($validate == "" || $validate != $svali)
//  {
//      ShowMsg("安全确认码不正确!", "javascript:;");
//      exit();
//  }

          <!--<tr>
            <td height="29">&nbsp;安全确认码：</td>
            <td>
                <table width="300"  border="0" cellspacing="0" cellpadding="0">
                <tr>
                  <td width="90">
                      <input type="text" name="validate" class="alltxt" style="width:80px;text-transform: uppercase;" />
                  </td>
                  <td>
                      <img src='../include/vdimgck.php' />
                  </td>
                </tr>
              </table>
             </td>
          </tr>-->