NAME:    
	dbcreate_xmm_txt
PURPOSE: 
	read in ascii xmm source list; 
 The format should be specified in the 1st line of the file, the name of 
 the columns in the 2nd line of the file. These should be separated by commas.

 The columns should be all or some of the following:
 xmmnr,ra(comp.),dec(comp.),radec_err,offax,vig,cts25,cts52,cts24,cts41,
 cts57,ects25,ects52,ects24,ects41,ects57,f25,f52,f24,f41,f57,ef25,ef52,ef24,
 ef41,ef57,hr1,hr2,hr3,ehr1,ehr2,ehr3,rosat_no
 ra and dec should be in degrees if the specified format is floating pt, hh 
 mm ss & dd mm ss resp. if the formats are character strings. radec_err should
 be in arcsec

 If given, fluxes are assumed to be in E-14 cgs
 If fluxes not given, the 3rd line should contain conversion factor from cts
 to flux for each band, ie for bands 25,52,24,41,57 in that order, separated 
 by blank spaces. (0.0 for absent bands). If fluxes given 3rd line should be
 blank.

CALLING SEQUENCE: 
	dbcreate_xmm_txt, file, db_out
INPUTS: 
	file: name of txt file to be read
OUTPUTS: 
    	db_out: string array, name of output database. 
       A db_out.dbd file will be created automatically
OPTIONAL OUTPUT PARAMETERS: 
    	none
EXAMPLE: 
	dbcreate_xmm_txt, 'xmmssc/list.txt','dbase/xmm'
DEPENDENCIES: 
	
RESTRICTIONS: 
        UNTESTED
CALLED PROCEDURES AND FUNCTIONS: 
	astrolib functions,write_xmm_txt_dbd
MODIFICATION HISTORY: 
     	10-Nov-2000  Original by Suzanne Aigrain 
	27-Nov-2000  S. Aigrain adapted to reading an xmm ascii file with 
		format specified at top of file

(See /home/xmmssc/soft/idl/pro/dbcreate/dbcreate_xmm_txt.pro)