 <!--
 function CentraPopup(url,lengh,hight) {
   var w = 400;
   var h = 250;
   var l = Math.floor((screen.width-w)/2);
   var t = Math.floor((screen.height-h)/2);
      window.open(url,"","width=" + w + ",height=" + h + ",top=" + t + ",left=" + l + ",location = no");
 }

//-->