title: iReports page number calculation
body: <p>I have an application that is generating multiple portions of a report, and then concatenates them together to generate a PDF document.  We would like to generate appropriate page numbers for each portion.  I was hoping to pass a PAGE_OFFSET parameter in to each portion and calculate the new page number by using PAGE_NUMBER + PAGE_OFFSET.  Is this possible?  So far everything I have tried generates type casting errors or invalid calculations.</p>