// JavaScript Document
  var stile = "top=10, left=10, width=250, height=200, status=no, menubar=no, toolbar=no scrollbar=no";
     function Popup(apri) {
       var w = 400;
   var h = 130;
   var l = Math.floor((screen.width-w)/2);
   var t = Math.floor((screen.height-h)/2);
      window.open(apri,"","width=" + w + ",height=" + h + ",top=" + t + ",left=" + l);
     }