Running Applescript using cron jobs not working

Question

I'm new to conjobs and applescript but I have the script done correctly i believe. (any critique is welcome) I don't want to bloat my calendar with events to do this because I use my calendar for appointments and I don't need the bloat.
Here's my goal: run an apple script at 9am/5pm to enable/disable a mail account (after this works I'm going to add loging in/out of an Messenger account, first things first)
here's my script:
tell application "Mail"
          set offTime to 17
          set onTime to 9
          set dayOfWeek to weekday of (current date)
          set theHour to get the (hours of (current date)) as string
          if theHour ≥ onTime then
                    say "email on"
                    set enabled of account "MAILBOX" to true
          else if theHour ≥ offTime or (dayOfWeek = Saturday or dayOfWeek = Sunday) then
                    say "email Off"
                    set enabled of account "MAILBOX" to false
          end if
end tell
accessing cron jobs via this
sudo pico /etc/crontab 
and within cron jobs i've used
0 9 * * * username osacript
"/Documents/disablemail.scpt"
0 17 * * * username osacript
"/Documents/disablemail.scpt"
variations I've attempted (based on search engine results)
0 9 * * * username osacript
"~/Documents/disablemail.scpt"
0 9 * * * /Documents/disablemail.scpt
0 9 * * * ~/Documents/disablemail.scpt
0 9 * * * osacript /Documents/disablemail.scpt
0 9 * * * osacript ~/Documents/disablemail.scpt
I think that's all of them.
Any feedback/assitance appreciated, thanks!

Answer 1

What's the problem, is the cronjob not getting called at all or is the script giving errors?
One problem you have right off is the cron job you have set up is running as root not as you.