var intPopupWidth;
		var intPopupHeight;

		function popup_positionner(){
			if($("#popup").is(":visible"))
			{
				var intLeft=$(document).scrollLeft() + Math.ceil(($(window).width()-intPopupWidth)/2);
				$("#popupcontenu").css("left",intLeft + "px");
	
				var intTop=$(document).scrollTop() + Math.ceil(($(window).height()-intPopupHeight)/2);
				$("#popupcontenu").css("top",intTop + "px");
			}
		}
		
		function popup(strHTML,_Width,_Height)
		{
			intPopupWidth=_Width;
			intPopupHeight=_Height;
			$("#popup").height($(document).height());
			$("#popup").width($(document).width());

			$("#popup").show();
			$("#popupcontenu").html(strHTML);
			popup_positionner();
		}

		$(document).scroll(function(){popup_positionner();});