Add Number of Business Days to a Date

Hi,

I need to add 16 business days to a date field.Holidays and weekends will be ignored when adding the number of days to the date.

To add a number to the date field, I believe I can use: <?xdoxslt:ora_format_date_offset(ReadDate_ID4, Days_ID33,'+')?>.

I don't know how to identify weekends and holidays.

Thanks for any help.

Tony