Replace characters in chat text

Question

I was written a small applescript to replace some characters in chat message. Here is my code.
property searchList : {"live"}
property replaceList : {"love"}
to switchText of t from s to r
   set text item delimiters to s
   set t to t's text items
   set text item delimiters to r
   tell t to set t to beginning & ({""} & rest)
   t
end switchText
to convertText(t)
   set d to text item delimiters
   considering case
       repeat with n from 1 to count searchList
           set t to switchText of t from my searchList's item n to my replaceList's item n
       end repeat
   end considering
   set text item delimiters to d
   t
end convertText
using terms from application "Messages"
   on message sent theMessage for theChat
       try
           return convertText(theMessage)
       end try
   end message sent
   on message received theMessage from theBuddy for theChat
       return convertText(theMessage)
   end message received
   on chat room message received theMessage from theBuddy for theChat
       return convertText(theMessage)
   end chat room message received
end using terms from
This code worked fine for Yahoo account, but it dont work when i received messages from iMessage and Jabber account. I tried to look into Alerts event and i found "Message received in active chat" ,maybe iMessage and Jabber account use this event to alert received message, but the problem is this object not defined in applescript. How can i define it, or make this code work with  iMessage and Jabber account.

Answer 1

after long long times for google and test myseft, i found yahoo account have problem too, because active chat why is apple dont define this object ""Message received in active chat"'