Variables in a module

Hi,

Hopefully just a quick question on defining variables. See the below code.

======
sub FirstSub

for x = 1 to 3
...do some stuff
call SecondSub

next x

End
_____
sub SecondSub

for x = 1 to 3
....do some stuff

next x

End Sub

===============

In this case will VBA get confused as X is used for a second time in the nested sub? What I would wish for is presumably X to be represented by a different variable Y in the second sub. I guess the question is - Is the X defined across the entire module or is it redefined by each sub procedure?

A slight example of the problem is when the first sub defines X as =2, when SecondSub is called will X start at =2 or will it revert back to starting at =1.

Apologies if the description is somewhat confusing.

Thanks