     onadd: (parent, el) ->
         return if removed el
         if el is el.builder
-            el._jquery ?= $([], el.parent?._jquery)
+            el._jquery ?= @$([], el.parent?._jquery)
         else
-            el._jquery ?= $(el.toString(), el.parent._jquery)
+            el._jquery ?= @$(el.toString(), el.parent._jquery)
 
         that = this
         el._jquery_manip    ?= cancelable_and_retrivable_callbacks()

    initialize: () ->
        do @listen
        # prefill builder with state
        @builder._jquery = $([])
        @builder._jquery_done = deferred_callbacks()
        do @builder._jquery_done.callback() # builder is allways done
        # override query

        opts.execution        ?= '4ms'
        opts.timeout          ?= '120ms'
        opts.toggle           ?= on
        @$ ?= opts.jquery ? opts.$ ? window?.$
        # init requestAnimationFrame handler
        @animation = new Animation(opts)
        @animation.start()
