var memoire = 0;

function heure_gmt(fuseau) {

memoire = fuseau;

var x = new Date();

var heure_gmt_temp = x.getUTCHours();
var heure_gmt = heure_gmt_temp + fuseau;

if ( heure_gmt < 0 ) {
	heure_gmt = 24 + heure_gmt;
	}
if (heure_gmt > 23) {
	heure_gmt = heure_gmt - 24;
	}
if (heure_gmt <= 9) heure_gmt = "0" + heure_gmt;

var minutes = x.getMinutes();
if (minutes <= 9) minutes = "0" + minutes;

var secondes = x.getSeconds();
if (secondes <= 9) secondes = "0" + secondes;

var gmt_base = heure_gmt_temp + ":" + minutes + ":" + secondes;
var gmt = heure_gmt + ":" + minutes + ":" + secondes;

	document.formulaire.gmt.value = gmt_base;
	document.formulaire.heure.value = gmt;
	setTimeout("heure_gmt(memoire);",1000);
	}