function DoSubmit()
{
    if($('txtUserName').value.trim()=='')
    {
        alert('Please Input Your Name !');
        $('txtUserName').value='';
        $('txtUserName').focus();
        return false;
    }

    if($('txtUserMail').value.trim()!='')
    {
        if($('txtUserMail').value.trim().indexOf('@')<4||$('txtUserMail').value.trim().indexOf('.')<5)
        {
            alert('E-mail address Format Error !');
            $('txtUserMail').focus();
            return false;
        }
    }    
 
     if($('txtContent').value.trim()=='')
    {
        alert('Please Input Content !');
        $('txtContent').value='';
        $('txtContent').focus();
        return false;
    }
    
    if($('txtVerifyCode').value.trim()=='')
    {
        alert('Please Input Verify Code !');
        $('txtVerifyCode').value='';
        $('txtVerifyCode').focus();
        return false;
    }
    else if(!CheckVerify($('txtVerifyCode').value.trim().toLowerCase()))
    {
        alert('Verify Code Error !');
        $('txtVerifyCode').focus();
        return false;
    }    
    $('btnSubmit').value='Please wait...';
    $('btnSubmit').disabled=true;
    var UserTitle=$('dropUserTitle').options[$('dropUserTitle').selectedIndex].text;
    var UserName=$('txtUserName').value;
    var UserMail=$('txtUserMail').value;
    var Content=$('txtContent').value;
    
    Faq.Add(UserTitle,UserName,UserMail,Content,function(res)
    {
        if(res.error!=null)
        {
            alert(res.error.Message);
            $('btnSubmit').value='Submit';
            $('btnSubmit').disabled=false;
        }
        else
        {
            if(res.value)
            {
                alert('Successful !');
                location.href='/';
            }
            else
            {
                alert('Failure !');
                $('btnSubmit').value='Submit';
                $('btnSubmit').disabled=false;
            }
        }
    });
}