function ImgView(MyUrl){
	var lewidth=500;
	var leheight=500;
	var leleft=(screen.width/2)-(lewidth/2);
	var letop=(screen.height/2)-(leheight/2);
	window.open("ImgView.asp?url=" + MyUrl, "Visualiseur", "width=" + lewidth + ",height=" + leheight + ",top=" + letop + ",left=" + leleft +",toolbar=0,location=0,directories=0,status=0,menuBar=0,scrollBars=1,resizable=1");
}