Swapping array elements

[PhilOfPerth]

Thanks for that!
You pointed me in the right direction, but I still don't really understand why I can't just swap the two elements. 
But if I don't use the SWAP function, I can just do this:

Code: (Select All)

a$ = "ABCDEFG"
Print a$
t1$ = Mid$(a$, 3, 1): t2$ = Mid$(a$, 5, 1)
Mid$(a$, 3, 1) = t2$: Mid$(a$, 5, 1) = t1$
Print a$

It introduces two new variables, but that's ok in my case. I'll look at using ASC instead of mid$ too, though speed is not important in my case either.