Way to check environment to run different segments of code?

[thepip3r]

I have a couple of scripts that I wrote that evaluate the users logon time and if they've been logged on greater than 24 hrs, my script will log them off as long as they are NOT apart of an Active Directory security group that I've set up for "exempt" accounts. My question is this. Currently it is two scripts: one to set up the scheduled task to run hourly to evaluate the user's logon time and one to actually check the security group and kick people off where necessary. The first one runs at Startup and the second runs during the users logged-on session ah hourly intervals.

My question is -- what's a good way to differentiate between startup and logon so I can consolidate the two scripts into one? Any ideas?