function openMenuPageold(pg, pgname, wd, hg){
	x=(screen.availWidth-wd)/2;
	y=(screen.availHeight-hg)/2;
	var choose=window.open(pg,pgname,'scrollbars=no,resizable=yes,width='+wd+',height='+hg+',status=no,location=no,toolbar=no,menubar=no,top=x,left=y,screenY=0,screenX=0');
}

function openMenuPage2(pg, pgname, wd, hg){
	x=(screen.availWidth-wd)/2;
	y=(screen.availHeight-hg)/2;
	var choose=window.open(pg,pgname,'scrollbars=yes,resizable=yes,width='+wd+',height='+hg+',status=no,location=no,toolbar=no,menubar=no,top=x,left=y,screenY=0,screenX=0');
}

function openMenuPageCenter(pg, pgname, wd, hg){
	x=(screen.availWidth-wd)/2;
	y=(screen.availHeight-hg)/2;
	var choose=window.open(pg,pgname,'scrollbars=no,resizable=yes,width='+wd+',height='+hg+',status=no,location=no,toolbar=no,menubar=no,top=x,left=y,screenY=0,screenX=0');
}

function openMenuPage(nome, titolo, lar, alt, feat){
				var feat = 'scrollbars=no,resizable=no,status=no,location=no,toolbar=no,menubar=no,title=no';
        var wdt = screen.width;
        var hgt = screen.height;
        var x = Math.round( (wdt / 2) - (lar / 2) );
        var y = Math.round( (hgt / 2) - (alt / 2) );
        window.open(nome, titolo, 'width=' + lar + ',height=' + alt + ',left=' + x + ',screenX=' + x + ',top=' + y + ',screenY=' + y + ',' + feat);
}