ask how to define the parent elements of h3PowerH4
as in the following cases:

<div class="p1">
<h3></h3>
<h4></h4>
</div>

<div class="p2">
<h3></h3>
<h4></h4>
</div>

only needs p1, but does not execute for p2

jquery:

/* 
 * blogMenu plugin 1.0   2017-09-01 by cary
 * :h3,h4
 */
(function ($) {
    var Menu = (function () {
        /**
         * 
         * @param element jq $("-sharpJ_plugin").plugin() , $("-sharpJ_plugin")  element
         * @param options 
         * @constructor
         */
        var Plugin = function(element, options) {
            //dom jquery
            this.$element = $(element);
            //obj
            this.settings = $.extend({}, $.fn.autoMenu.defaults, typeof options === "object" && options)
            //dom
            //this.settings = $.extend({}, $.fn.plugin.defaults, this.$element.data(), options);
            this.init();
        }
        /**
         * prototype
         * 
         * @type {{}}
         */
        Plugin.prototype = {
            init: function () {
                var opts = this.settings;
                //console.log(opts)
                this.$element.html(this.createHtml());
                this.setActive();
                this.bindEvent(); 
            },
            createHtml: function(){
                var that = this;
                var opts = that.settings;
                var width = typeof opts.width === "number" && opts.width;
                var padding = typeof opts.padding === "number" && opts.padding;
                that.$element.width(width+padding*2);
                var html = "<ul style="padding:" + padding + "px">";
                var num = 0;
                $("*").each(function(){
                    var _this = $(this);
                    if(_this.get(0).tagName == opts.levelOne.toUpperCase()){
                        _this.attr("id",num);
                        var nodetext = that.handleTxt(_this.html());
                        html += "<li name=""+ num +""><i class="iconfont menu"></i><a href="-sharp"+ num +"">"+ nodetext +"</a></li>";
                        numPP;
                    }else if(_this.get(0).tagName == opts.levelTwo.toUpperCase()){
                        _this.attr("id",num);
                        var nodetext = that.handleTxt(_this.html());
                        html += "<li class="sub" name=""+ num +""><i class="iconfont menu"></i><a href="-sharp"+ num +"">"+ nodetext +"</a></li>";
                        numPP;
                    }
                })
                html += "</ul><a href="javascript：void(0);" class="btn-box">"
                            +"<span class="icon-minus-sign"></span>"
                        +"</a>";
                return html;   
            },
            handleTxt: function(txt){
                //HTML
                return txt.replace(/<\/?[^>]+>/g,"").trim();
            },
            setActive: function(){
                var $el = this.$element,
                    opts = this.settings,
                    items = opts.levelOne + "," + opts.levelTwo,
                    $items = $(items),
                    offTop = opts.offTop,
                    top = $(document).scrollTop(),
                    currentId;
                if($(document).scrollTop()==0){
                    //active
                    $el.find("li").removeClass("active").eq(0).addClass("active");
                    return;
                }
                $items.each(function(){
                    var m = $(this),
                        itemTop = m.offset().top;
                    if(top > itemTop-offTop){
                        currentId = m.attr("id");
                    }else{
                        return false;
                    }
                })
                var currentLink = $el.find(".active");
                if(currentId && currentLink.attr("name")!= currentId){
                  currentLink.removeClass("active");
                  $el.find("[name="+currentId+"]").addClass("active");
                }  
            },
            bindEvent: function(){
                var _this = this;
                $(window).scroll(function(){
                    _this.setActive()
                });
                _this.$element.on("click",".btn-box",function(){
                    if($(this).find("span").hasClass("icon-minus-sign")){
                        $(this).find("span").removeClass("icon-minus-sign").addClass("icon-plus-sign");
                        _this.$element.find("ul").fadeOut();
                    }else{
                        $(this).find("span").removeClass("icon-plus-sign").addClass("icon-minus-sign");
                        _this.$element.find("ul").fadeIn();
                    }
                    
                })
            }

        };
        return Plugin;
    })();
    /**
     * Plugin jq
     *  plugin
     */
    $.fn.autoMenu = function (options) {
        return this.each(function () {
            var $el = $(this),
                menu = $el.data("autoMenu"),
                option = $.extend({}, $.fn.autoMenu.defaults, typeof options === "object" && options);
            if (!menu) {
                //dom
                $el.data("autoMenu",new Menu(this, option));
            }
            /**
             *    
             *  $("-sharpid").plugin("doSomething")  $("-sharpid).plugin.doSomething();
             */
            if ($.type(options) === "string") menu[option]();
        });
    };
    /**
     * 
     */
    $.fn.autoMenu.defaults = {
        levelOne : "h3", //
        levelTwo : "h4",  //
        width : 160, //
        padding: 10, //
        offTop : 120, //
    };
    /**
     * : data-xxx  
     *  
     * bootstrap JS
     */
    $(function () {
        if($("[data-autoMenu]").length>0){
            new Menu($("[data-autoMenu]"));
        }     
    });
})(jQuery);