I have these buttons that I need to have switch accounts on and off. They work, but for some reason the words on the buttons are not changing from Activate to Deactivate...

It seems as though the button is not updating itself after success of the function. First post on here so I apologize if I am doing this wrong.
Problem code in jsbin--> http://jsbin.com/okifa3/

Code:
    $(function() {
    var activateOwner = function(u) {
      var dataString = 'oid=' + u + "&a=1";
      $.ajax({
        type: "GET",
        url: "{/literal}{$site_root_path}{literal}account/toggle-owneractive.php",
        data: dataString,
        success: function() {
          $('#spanowneractivation' + u).css('display', 'none');
          $('#message1' + u).html("Activated!").hide().fadeIn(1500, function() {
            $('#message1' + u);
          });
          $('#spanownernamelink' + u).css('display', 'inline');
          $('#' + u).val('Deactivate');
          $('#spanownernametext' + u).css('display', 'none');
          $('#' + u).removeClass('btnActivate');
          $('#' + u).addClass('btnDectivate');
          setTimeout(function() {
              $('#message1' + u).css('display', 'none');
              $('#spanowneractivation' + u).hide().fadeIn(1500);
            },
            2000
          );
        }
      });
      return false;
    };

    var deactivateOwner = function(u) {
      var dataString = 'oid=' + u + "&a=0";
      $.ajax({
        type: "GET",
        url: "{/literal}{$site_root_path}{literal}account/toggle-owneractive.php",
        data: dataString,
        success: function() {
          $('#spanowneractivation' + u).css('display', 'none');
          $('#message1' + u).html("Deactivated!").hide().fadeIn(1500, function() {
            $('#message1' + u);
          });
         $('#spanownernamelink' + u).css('display', 'none');
         $('#spanownernametext' + u).css('display', 'inline');
          $('#' + u).val = 'Activate';
          $('#' + u).removeClass('btnDeactivate');
          $('#' + u).addClass('btnActivate');
          setTimeout(function() {
              $('#message1' + u).css('display', 'none');
              $('#spanowneractivation' + u).hide().fadeIn(1500);
            },
            2000
          );
        }
      });
      return false;
    };

    $(".toggleOwnerButton").click(function() {
      if($(this).val() == 'Activate') {
        activateOwner($(this).attr("id"));
      } else {
        deactivateOwner($(this).attr("id"));
      }
    });
  });