function openWindow(filename, windowname, w, h) {

sw = screen.width;
sh = screen.height;

//var windowops = eval("'screenX="+w+",screenY="+h+",width="+w+50+",height="+h+"',left="+(sw-w)/2+",top="+(sh-h)/2+",toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no,fullscreen=no,copyhistory=yes");
var windowops = eval("'screenX="+w+",screenY="+h+",width="+w+",height="+h+",left="+(sw-w)/2+",top="+(sh-h)/2+",toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no,fullscreen=no,copyhistory=yes'");
window.open(filename, windowname, windowops);
}


function ShowPezzo (img) {
	var I = new Image;
	I = document.pezzo;
	if (I==null) I = document.layers['layerpezzo'].document.images['pezzo'];
	I.src = "img/pez/pezzi"+img+".jpg";
}