my $_validfields = {} ;
# afin que l'ordre des champs soit conservé
tie %{$_validfields}, "Tie::IxHash";

%$_validfields = (
 'LENGTH' => {
     offset    => 0,
     length    => 5,
	 format    => 'A',
	 default	  => 175,
     mandatory => 1
 },
 'RECORD FORMAT' => {
     offset    => 5,
     length    => 1,
	 format    => 'A',
	 default	  => ' ',
     mandatory => 1
 },
 'ID' => {
     offset    => 6,
     length    => 20,
	 format    => 'A',
	 default	  => 'GEST',
     mandatory => 1
 },
 'MEDIA' => {
     offset    => 26,
     length    => 2,
	 format    => 'A',
	 default	  => 20,
     mandatory => 1
 },
 'ORIG' => {
     offset    => 28,
     length    => 5,
	 format    => 'A',
	 default	  => 'GEST',
     mandatory => 1
 },
 'STATE' => {
     offset    => 33,
     length    => 1,
	 format    => 'A',
	 default	  => 0,
     mandatory => 1
 },
 'STATUS' => {
     offset    => 34,
     length    => 5,
	 format    => 'A',
 	 default	  => '',
    mandatory => 1
 },
 'ERROR RECORD' => {
     offset => 39,
     length => 5,
	 format    => 'A',
 	 default	  => '',
     mandatory => 1
 },
 'PRIORITY' => {
     offset => 44,
     length => 1,
	 format    => 'A',
 	 default	  => 9,
     mandatory => 1
 },
 'TARGET SERVER' => {
     offset => 45,
     length => 4,
	 format    => 'A',
 	 default	  => '',
    mandatory => 1
 },
 'TARGET LINE' => {
     offset    => 49,
     length    => 2,
	 format    => 'A',
 	 default	  => '',
     mandatory => 1
 },
 'OUTPUT SC' => {
     offset    => 51,
     length    => 4,
	 format    => 'A',
 	 default	  => '',
     mandatory => 1
 },
 'OUTPUT LINE' => {
     offset    => 55,
     length    => 2,
	 format    => 'A',
 	 default	  => '',
     mandatory => 1
 },
 'BUNDLE FNAME' => {
     offset    => 57,
     length    => 47,
	 format    => 'hA',
 	 default	  => 0x01,
     mandatory => 1
 },
 'DUPS' => {
     offset    => 104,
     length    => 5,
	 format    => 'A',
 	 default	  => 1,
     mandatory => 1
 },
 'ORDER INITIATE TS' => {
     offset => 109,
     length => 14,
	 format    => 'A',
 	 default	  => '',
     mandatory => 1
 },
 'ORDER CREATE TS' => {
     offset    => 123,
     length    => 14,
	 format    => 'A',
 	 default	  => '',
     mandatory => 1
 },
 'ORDER READ TS' => {
     offset    => 137,
     length    => 14,
	 format    => 'A',
 	 default	  => '',
     mandatory => 1
 },
 'ORDER CC TS' => {
     offset => 151,
	 format    => 'A',
 	 default	  => '',
     length => 14
 },
 'COPIES REQUIRED' => {
     offset    => 165,
     length    => 5,
	 format    => 'A',
 	 default	  => '',
     mandatory => 1
 },
 'DISKS PRODUCED' => {
     offset    => 170,
     length    => 5,
	 format    => 'A',
 	 default	  => '',
     mandatory => 1
 },
 # params optionnels
 #****v*
 # COLLATE est le seul paramètre codé par sa valeur binaire
 # c'est donc un INT et pas un STRING
 # ( #!%? et le coeur y est)
 #***
 'COLLATE' => {
     offset    => 175,
     length    => 1,
	 format    => 'C',
 	 default	  => 0,
     mandatory => 0
 },
 'RETURN INFO' => {
     offset    => 177,
     length    => 1,
	 format    => 'A',
 	 default	  => '',
     mandatory => 0
 },
 'RETURN FILE' => {
     offset    => 178,
     length    => 260,
	 format    => 'A',
 	 default	  => '',
     mandatory => 0
 },
 'EXT BUNDLE FNAME' => {
     offset    => 438,
     length    => 260,
	 format    => 'A',
 	 default	  => '',
     mandatory => 0
 },
 'EMAIL' => {
     offset    => 698,
     length    => 128,
	 format    => 'A',
 	 default	  => '',
     mandatory => 0
 },
 'INPUT BIN' => {
     offset    => 826,
     length    => 2,
	 format    => 'A',
 	 default	  => '',
     mandatory => 0
 },
);