How do I pad a number to ensure that it is always atleast 4 digits?

The original DOCID is in the format of 0000. There is a field NumPages.

So if on record 1, the DOCID = 0005, and the Numpages is 6, i have a script which basically runs and creates records with

0005 - 1

0006 - 2

0007 - 3

0008 - 4

0009 - 5

0010 - 6

but in reality it creates it as

0005 - 1

6 - 2

7 - 3

8 - 4

9 - 5

10 - 6

See the attached for a better explanation.

I was thinking of using the count characters but I think I'm going about that the wrong way.

login and password are both "admin"

TIA

example.zip

Right("0000"&DocID;4)

is the general formula for padding zeroes onto a number

doh! something so simple.. thanks!