InfoPath Dev

I just started in InfoPath yesterday and I've nver worked with Julian Dates so bear with me if this is covered all over the web. I wasn't able to find anything.

I am working in InfoPath 2007. I have a field which I need to auto populate with a numeric value with YYYY + day of the year in Julian.

Is there an xslt function that cane take the current system date as an input and kick back the julian day part of the result?

 Thank yoU!

I figured it out. In case anyone else needs this odd requirement fulfilled here is the way to do it in XSLT:

 (substring-before(substring-after(substring-after(now(), "-"), "-"), "T")) + floor((153 * ((substring-before(substring-after(now(), "-"), "-")) + 12 * (floor((14 - substring-before(substring-after(now(), "-"), "-")) / 12)) - 3) + 2) / 5) + (substring-before(now(), "-") + 4800 - (floor((14 - substring-before(substring-after(now(), "-"), "-")) / 12))) * 365 + floor((substring-before(now(), "-") + 4800 - (floor((14 - substring-before(substring-after(now(), "-"), "-")) / 12))) / 4) - floor((substring-before(now(), "-") + 4800 - (floor((14 - substring-before(substring-after(now(), "-"), "-")) / 12))) / 100) + floor((substring-before(now(), "-") + 4800 - (floor((14 - substring-before(substring-after(now(), "-"), "-")) / 12))) / 400) - 32045

This will round up the ones place. 

 Optimizations are welcome!

If interested more on this, including a SQL Server UDF, is available my tiny blog