var popupwidth;
var popupheight;
var popuptop;
var popupleft;
if (screen.width>=1024){
	popupwidth=370;
	popupheight=350;
	popuptop=109;
	popupleft=615;
   }else{
	popupwidth=260;
	popupheight=205;
	popuptop=109;
	popupleft=502;
}

var str="toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no,top="+popuptop+",left="+popupleft+",width="+popupwidth+",height="+popupheight;
function popup(URL){
var win=null;
	if(win){
	}else{
	win=window.open(URL, "navigatore", str);}
	}