var winPopUp = null;
 
  function OpenWindow(URL, Width, Height){
   if (winPopUp != null && !winPopUp.closed){
    winPopUp.close();
   }
   
   winPopUp = window.open(URL,"","width=" + Width + ",height=" + Height + ",resizable=yes,scrollbars=yes,statusbar=yes, location=yes, toolbar=yes, menubar=yes, status=yes");
  }