Disabling Triggers after time amount

[Nightmare]

How do you put this in jass:

Disable this trigger after 300 seconds.

and also add in

Remove all units for (Triggering Player) when used.

also if this helps this is a loading trigger, and the substring to say is -loadhero <code> if that helps at all.
Thanks for all your help! If you need more info just tell me thanks!
-Nightmare

[initialD]

To destroy trigget after 300 seconds:

local trigger t7=CreateTrigger()
call TriggerSleepAction(300)
call DestroyTrigger(t7)
set t7=null


To remove units:

Call RemoveUnit(Units)

For details, ask Aero. :p

[Aero]

Use a timer....

Create a timer variable called whatever you want (I'm calling it "abc" for this example).

Make a new trigger again called whatever you want.

For the event, have this:
Event - abc Expires

For the actions. make it do whatever you want.

Then, in you're map init trigger, do this:

Timer - Start abc as a One-Shot timer that will expire in 300 seconds.

Ta-dah, you're done.