BeginHeader(Integer iInternalObj Integer iHeaderNr Integer iHeaderType)
*** Creates a header. The param you send sets the type
*** of header you would like to have.
*** Returns PRN_TRUE=Ok PRN_FALSE=Cancel
***
*** DFPageTop 0
*** DFReportHeader 1
*** DFPageHeader 2
*** DFPageTitle 3
*** DFSubHeader 4
*** DFSubTotal 5
*** DFTotal 6
*** DFPageTotal 7
*** DFPageFooter 8
*** DFReportFooter 9
*** DFPageBottom 10
*** DFPageHeader2 11
***
***