function decompte (date)
{
	var cible = new Date (date);

	var mms_jour = 24 * 60 * 60 * 1000;
	var mms_heure = 60 * 60 * 1000;
	var mms_minute = 60 * 1000;
	var mms_seconde = 1000;
	
	var aujourdhui = new Date ();
	var change_j = -1;
	var change_h = -1;
	var change_m = -1;
	var diff_mms = cible.getTime () - aujourdhui.getTime ();
	
	diff_jours = Math.floor (diff_mms / mms_jour);
	diff_mms -= diff_jours * mms_jour;
	diff_heures = Math.floor (diff_mms / mms_heure);
	diff_mms -= diff_heures * mms_heure;
	diff_minutes = Math.floor (diff_mms / mms_minute);
	diff_mms -= diff_minutes * mms_minute;
	
	var diff_secondes = Math.floor (diff_mms / mms_seconde);
		
	document.getElementById('decompte_gp_date').innerHTML = (diff_jours < 10 ? ("0" + diff_jours) : diff_jours) + "<span style=\"font-size: 12px\">J</span> " + (diff_heures < 10 ? ("0" + diff_heures) : diff_heures) + "<span style=\"font-size: 12px\">H</span> " + (diff_minutes < 10 ? ("0" + diff_minutes) : diff_minutes) + "<span style=\"font-size: 12px\">M</span> " + (diff_secondes < 10 ? ("0" + diff_secondes) : diff_secondes) + "<span style=\"font-size: 12px\">S</span>";
	
	setTimeout ("decompte ('"+date+"')", 1000);
}