InfoPath Dev

I am creating a custom name for a form.  An example of the name is: PR-00S-0208-4593.  The PR stand for purchase request, the 00S refers to type of purchase request, 0208 refers to month and year request was made, and the 4593 is a random generated number.  I got all the parts figured out and successfully got it to generate the number to PR-00S-022008-4593. 

 I am needing to convert the 4 digit year to a 2  digit year.  Any suggestions?  I coded everything within visual studio 2005 using vb and it worked flawless.  I started copying over to infopath and I get an error when formatting the year to two digits.  Below is my code:

Public Function GetRandomNumber(Optional ByVal Low As Integer = 1, Optional ByVal High As Integer = 100) As Integer

' Returns a random number,

' between the optional Low and High parameters

End Function

 Then on the load event handler, i have this code:

Dim intRandom As Integer

thisXDocument.DOM.selectSingleNode("/dfs:myFields/my:PRNUMBER").text = "PR-00S-" & strMonthNumber & datYear & "-" & intRandom.ToString

The error I get is: Value of type 'Date' cannot be converted to 'System.Type' from when I try to format the year to 2 digits.

Any suggestions?  Thanks.

I would just use a substring function and take the last two characters of the date field.

02/06/2008  substring(date, 9, 2)

Or if the date is 2008-02-06 substring(date, 3, 2)

the syntax is for InfoPath rules but would be the same for code.  Take the characters from the string starting at position and for x characters.  SInce the date is always consistent and the 2 digit year will always be in the same place it should be pretty simple.

thanks, I got it to work.