   $(document)
   .on 'click', ".#{@options.nav_class} a", (e) ->
     e.preventDefault()
-    that.stop()
+    _this.stop()
     if $(this).hasClass('next')
-      that.animate 'next'
+      _this.animate 'next'
     else
-      that.animate 'prev'
+      _this.animate 'prev'
 
   initialize()
 

    setVerticalPosition($img)

  adjustSlidesSize = ($el) =>
    that = this
    $el.each (i) ->
      $(this).width(width).height(height)


    $control = $container.wrap($control).parent('.slides-control')

    setupContainers()
    setupChildren()

    @start()
    this
