var popupobj;

function greeting(){
  
  if(popupobj) return;
  //popupobj = window.createPopup();
  var str = "Hi";
  switch( getlang() ){
    case 0:
      str = "Hello";
      break;
    case 1:
      str = "こんにちは";
      break;
    case 2:
      str = "Здравствуйте";
      break;
    case 3:
      str = "你好";
      break;
  }
  
  //popObj = popupobj.document.body;
  //popObj.innerHTML = "<b>" + str + "</b>"
  //popObj.style.backgroundColor = "white";
  //popupobj.show(10, 10, 100, 20);
  alert(str);
}