how to run applescript as a background process?

i want to run this script in background...

Actually i want to handle popup window which appear when we run this
code, it asks optons: 1-"Open the series" and 2-"Open the one", by
default the Open the one is selected but i wanted to select Opent the
series option. But this script wait until the option is not selected
so i was not able to run the code which select that option. Any
suggestion, how i can do it?

code to open event
********************************

[applescript]tell application "Microsoft Entourage"
set newevent to item 1 of (every event whose subject is equal
to
"Test")
open newevent
end tell[/applescript]

code to select option
**********************************
[applescript]activate application "Microsoft Entourage"
tell application "System Events"
tell process "Microsoft Entourage"
-- insert GUI Scripting statements here
--radio button "Open the series" of window 1
tell window 1
click radio button "Open the series"
end tell
end tell
end tell[/applescript]
***********************************

regards,
anni

You must save your script as "stay open" application, embedded into a
repeat- loop like this:

on idle
delay 5*minutes --5 min or delay 180 whose stays for 3 minutes
beep
--insert your script here
end idle

remenber that this particular type of application does not close
normally with "quit", but you quit it with the force-quit command,
manually: holding down command, alt and esc