Pausing and continueing a script

[Jack Christensen <jack@...>]

I'm using Lua for game scripting. I'd like to have the script call a 
command, pause execution until it is finished, then resume at the next 
statement.

For example for an NPC:
PickupWeapon()
EquipWeapon()
MoveTo(40,40)
GuardLocation()

Obviously I don't want it equipping a weapon before it has picked it up. 
> From studying the documentation I think coroutines and threads are what 
I should be looking into, but I wanted to ask before I head done a 
possibly wrong approach.

Thanks.

-Jack