ICHAT- script , send message to selected users

Hi all !
I am trying to figure out script , for our internel Ichat. I would like to send message to different departments (for example only 5 people out of 20)
Here is script that I am tring to do:

tell application “iChat”
send “TEST” to account “John Script”
end tell

This will send message “test” to only one person “john” how can I write it if I have more users for same message?

just FYI here is script that would send to everyone:
tell application “iChat”
set nameList to (name of account of service 2)
repeat with currentNumber from 2 to (length of nameList)
send “Test” to account currentNumber of service 2
end repeat
end tell

Thanks
R