function positionnerElements()
{
	l = $(window).width();
	h = $(window).height();
	margeLeft = (l - 992) >> 1;
	if (margeLeft < 0) margeLeft = 0;
	margeTop = (h - 532) >> 1;
	if (margeTop < 0) margeTop = 0;
	
	$("#global").css("left", margeLeft+"px").css("top", margeTop+"px");	
	$("#lienLogo").css("left", (margeLeft + 710)+"px").css("top", (margeTop + 506)+"px");
}