[Deff]

function win(){
  if(typeof(popupWin)!="undefined") {
		alert(typeof(popupWin));
		alert(popupWin.closed);
		} else { 
		window.popupWin=window.open("http://ya.ru/","Record","width=681,height=425,resizable=yes,scrollbars=yes,status=yes");
	}
}