用户反映在OWA中l新增信件时，要点选选项按钮时，会出现以下错误
Client Information
------------------
User Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Trident/5.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; InfoPath.2)
CPU Class: x86
Platform: Win32
System Language: zh-tw
User Language: zh-tw
CookieEnabled: true
Mime Types:
Exception Details
-----------------
Date: Fri Sep 7 14:48:44 UTC+0800 2012
Message: 'onClsMOpt' 未經定義
Url: https://mail.***.com/owa/8.1.393.1/scripts/premium/fedtmsg.js
Line: 15
Call Stack
----------
Dump Event
----------
recordset = null
type = error
fromElement = null
toElement = null
altLeft = false
keyCode = 0
repeat = false
reason = 0
data =
behaviorCookie = 0
source = null
contentOverflow = false
behaviorPart = 0
url =
dataTransfer = null
ctrlKey = false
shiftLeft = false
dataFld =
returnValue = undefined
qualifier =
wheelDelta = 0
bookmarks = null
actionURL =
button = 0
srcFilter = null
nextPage =
cancelBubble = false
x = 0
y = 0
buttonID = 0
srcElement = null
screenX = 623
screenY = 223
srcUrn =
origin =
boundElements = [object]
clientX = 397
clientY = 10
propertyName =
shiftKey = false
ctrlLeft = false
offsetX = 0
offsetY = 0
altKey = false
errorMessage = 'onClsMOpt' 未經定義
errorUrl = https://mail.***.com/owa/8.1.393.1/scripts/premium/fedtmsg.js
errorLine = 15
errorCharacter = 192
errorCode = 0