function enter(){
        chatWin = window.open("public/chat/main.asp","chatWin","toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no,WIDTH=315,HEIGHT=270");
        chatWin.location.href = "public/chat/main.asp"
        if(navigator.appVersion.indexOf("4") != -1){
            chatWin.moveTo(0,0);
        }
  }

     function closeWin(){
           chatWin.close();
     }