;+
;PROJECT:
;           Solar-B EIS
;
;NAME:      
;           eis_split_window
;
;PURPOSE:
;           Function to test whether any windows overlap. This is done for
;           each CCD separately. 
;
;INPUTS:
;           ll       - an eis_line_list structure
;OUPUTS:
;           ll       - an eis_line_list structure
;CATEGORY:
;           EIS Technical Planning - eis_mk_raster
;
;MODIFICATION HISTORY:
;           V0. Written by: John Rainnie, RAL
;               j.rainnie@rl.ac.uk (Feb 2006)
;
;-
;************************************************************************
FUNCTION eis_split_window , ll

ll.lines[*].split = 0

FOR i = 0, ll.nLines - 1 DO BEGIN

    p1 = ll.lines[i].p1
    p2 = ll.lines[i].p2
    IF (p1 LE 1023) AND (p2 GT 1023) THEN ll.lines[i].split = 1

ENDFOR


RETURN , ll

END