var messageInvalidSubscribe = 'Please type in your email address!';
        function loginOnBlur2(obj)
        {
                    var f=obj.form;
                     if (f.email.value == '')
             f.email.value = f.email.defaultValue;

        }

        function loginOnFocus2(obj)
        {
                    var f=obj.form;
                     if (f.email.value == f.email.defaultValue)
             f.email.value = '';

        }

        function subscribe(f)
        {
          if (!f.email.value || f.email.value == f.email.defaultValue)
          {
            alert(messageInvalidSubscribe);
            f.email.focus();
          }
          else
          {
           f.action="/subscribe/add.html";
           f.submit();
          }
        }

        function unsubscribe(f)
        {
          if (!f.email.value || f.email.value == f.email.defaultValue)
          {
            alert(messageInvalidSubscribe);
            f.email.focus();
          }
          else
          {
           f.action="/subscribe/del.html";
           f.submit();
          }
        }