function insChk(fom)
{
  fom.cname.value = fom.cname.value.trim();
  fom.email.value = fom.email.value.trim();
  fom.info.value = fom.info.value.trim();

  var chkitem;

  fom.code.value= fom.code.value.trim();
  chkitem = check_null(fom.code.value) + check_char(fom.code.value);
  if( chkitem != "" )
  {
    alert( "\"驗證碼\"" + chkitem );
    fom.code.focus();
    return false;
  }
  
  chkitem = check_null(fom.cname.value) + check_char(fom.cname.value);
  if( chkitem != "" )
  {
    alert( "\"姓名\"" + chkitem );
    fom.cname.focus();
    return false;
  }

  chkitem = check_null(fom.email.value) + check_char(fom.email.value) + check_mail(fom.email.value);
  if( chkitem != "" )
  {
    alert( "\"電子郵件\"" + chkitem );
    fom.email.focus();
    return false;
  }

  chkitem = check_null(fom.info.value) + check_char(fom.info.value);
  if( chkitem != "" )
  {
    alert( "\"意見反應\"" + chkitem );
    fom.info.focus();
    return false;
  }

  if(fom.op.value == 'ins' || fom.op.value == 'moded')
  {
    ok = confirm( "確定送出資料?\n請確認填寫資料是否正確！");
    if( ok == true)
    {
      fom.target="ifrm";
      fom.submit();
    }
  }
}

function modChk(fom)
{
  fom.op_content.value = fom.op_content.value.trim();

  var chkitem;

  chkitem = check_null(fom.op_content.value) + check_char(fom.op_content.value);
  if( chkitem != "" )
  {
    alert( "\"意見回覆\"" + chkitem );
    fom.op_content.focus();
    return false;
  }

  fom.action='contact.php';
  fom.target="ifrm";
  fom.submit();
}