var pp= null;
function window_popup(url, w, h)
{
         var opt = "depent=0,resizable=1,scrollbars=1,menubar=0";
         h= h+40;
         w= w+40;
         opt = opt+",height="+h+",width="+w+",menu=1";

         var time= new Date();
         var winName= "pp" + "_" + time.getTime();
         pp= open(url, winName, opt);
}

function popup(url,lng)
{
         var url= url + '&lng=' + lng;
         window_popup(url, 400, 500);
}