DEF FNDplot_doc_close(INTEGER Doc_num,OPTIONAL INTEGER Verbose)
!
! Closes DPlot document(s)
!
! INPUT: (Optional) Doc_num: DPlot Document Number
! If Doc_num=-1 then *all* open documents will be closed
!
! Returns 1 if function was successful, otherwise returns 0
!
FNDplot_doc_close closes the DPlot document specified by Doc_num (or, if Doc_num=-1 then *all* open DPlot documents will be closed). FNDPlot_close also automatically un-registers the closed documents from the FNDPlot_autosize function.