Uncaught typeerror: $(...). champ-это не функция

<script type="text/javascript">
  $(document).ready(function(){
    var champ;
    $(".first_tab").champ();

    $(".accordion_example").champ({
              plugin_type :  "accordion",
              side : "left",
              active_tab : "3",
              controllers : "true"
    });

    $(".second_tab").champ({
              plugin_type :  "tab",
              side : "right",
              active_tab : "1",
              controllers : "false"
    });

    $(".third_tab").champ({
              plugin_type :  "tab",
              side : "",
              active_tab : "4",
              controllers : "true",
              ajax : "true",
              show_ajax_content_in_tab : "4",
              content_path : "html.txt"
    });
      
  });
</script>
<!--branding script-->
   <script type="text/javascript">
    $('.tab-content>div').hide();
    $('.tab-content>div').first().slideDown();
      $('.tab-buttons span').click(function(){
      var thisclass=$(this).attr('class');
      $('#tabs-wrapp').removeClass().addClass('#tabs-wrapp').addClass(thisclass);
      $('.tab-content>div').each(function(){
        if($(this).hasClass(thisclass)){
        $(this).fadeIn(800);
        }
        else{
        $(this).hide();
        }
      });
      });
    </script>

<pre>i am getting an error .champ is not a function in java script