Franklin

callbacks not working

确实存在这个问题。

i do it. `(function($,window,document,undefined){var OnePageNav=function(elem,options){this.elem=elem;this.$elem=$(elem);this.options=options;this.metadata=this.$elem.data("plugin-options");this.$win=$(window);this.sections={};this.didScroll=false;this.$doc=$(document);this.docHeight=this.$doc.height()};OnePageNav.prototype={defaults:{offsetHeight:0,navItems:"a",currentClass:"current",changeHash:false,easing:"swing",filter:"",scrollSpeed:750,scrollThreshold:0.5,begin:false,end:false,scrollChange:false},init:function(){this.config=$.extend({},this.defaults,this.options,this.metadata);this.$nav=this.$elem.find(this.config.navItems);if(this.config.filter!==""){this.$nav=this.$nav.filter(this.config.filter)}this.$nav.on("click.onePageNav",$.proxy(this.handleClick,this));this.getPositions();this.bindInterval();this.$win.on("resize.onePageNav",$.proxy(this.getPositions,this));return this},adjustNav:function(self,$parent){self.$elem.find("."+self.config.currentClass).removeClass(self.config.currentClass);$parent.addClass(self.config.currentClass)},bindInterval:function(){var self=this;var docHeight;self.$win.on("scroll.onePageNav",function(){self.didScroll=true});self.t=setInterval(function(){docHeight=self.$doc.height();if(self.didScroll){self.didScroll=false;self.scrollChange()}if(docHeight!==self.docHeight){self.docHeight=docHeight;self.getPositions()}},250)},getHash:function($link){return $link.attr("href").split("#")[1]},getPositions:function(){var self=this;var linkHref;var topPos;var $target;self.$nav.each(function(){linkHref=self.getHash($(this));$target=$("#"+linkHref);if($target.length){topPos=$target.offset().top;self.sections[linkHref]=Math.round(topPos)}})},getSection:function(windowPos){var returnValue=null;var windowHeight=Math.round(this.$win.height()*this.config.scrollThreshold);for(var section in this.sections){if((this.sections[section]-windowHeight)