solr/server/solr-webapp/webapp/js/lib/jquery.jstree.js
function (obj, position, js, callback, is_loaded) {
        obj = this._get_node(obj);
        position = typeof position === "undefined" ? "last" : position;
        var d = $("<li>"),
          s = this._get_settings().core,
          tmp;

        if(obj !== -1 && !obj.length) { return false; }
        if(!is_loaded && !this._is_loaded(obj)) { this.load_node(obj, function () { this.create_node(obj, position, js, callback, true); }); return false; }

        this.__rollback();

        if(typeof js === "string") { js = { "data" : js }; }
        if(!js) { js = {}; }
        if(js.attr) { d.attr(js.attr); }
        if(js.state) { d.addClass("jstree-" + js.state); }
        if(!js.data) { js.data = s.strings.new_node; }
        if(!$.isArray(js.data)) { tmp = js.data; js.data = []; js.data.push(tmp); }
        $.each(js.data, function (i, m) {
          tmp = $("<a>");
          if($.isFunction(m)) { m = m.call(this, js); }
          if(typeof m == "string") { tmp.attr('href','#')[ s.html_titles ? "html" : "text" ](m); }
          else {
            if(!m.attr) { m.attr = {}; }
            if(!m.attr.href) { m.attr.href = '#'; }
            tmp.attr(m.attr)[ s.html_titles ? "html" : "text" ](m.title);
            if(m.language) { tmp.addClass(m.language); }
          }
          tmp.prepend("<ins class='jstree-icon'>&#160;</ins>");
          if(m.icon) { 
            if(m.icon.indexOf("/") === -1) { tmp.children("ins").addClass(m.icon); }
            else { tmp.children("ins").css("background","url('" + m.icon + "') center center no-repeat"); }
          }
          d.append(tmp);
        });
        d.prepend("<ins class='jstree-icon'>&#160;</ins>");
        if(obj === -1) {
          obj = this.get_container();
          if(position === "before") { position = "first"; }
          if(position === "after") { position = "last"; }
        }
        switch(position) {
          case "before": obj.before(d); tmp = this._get_parent(obj); break;
          case "after" : obj.after(d);  tmp = this._get_parent(obj); break;
          case "inside":
          case "first" :
            if(!obj.children("ul").length) { obj.append("<ul>"); }
            obj.children("ul").prepend(d);
            tmp = obj;
            break;
          case "last":
            if(!obj.children("ul").length) { obj.append("<ul>"); }
            obj.children("ul").append(d);
            tmp = obj;
            break;
          default:
            if(!obj.children("ul").length) { obj.append("<ul>"); }
            if(!position) { position = 0; }
            tmp = obj.children("ul").children("li").eq(position);
            if(tmp.length) { tmp.before(d); }
            else { obj.children("ul").append(d); }
            tmp = obj;
            break;
        }
        if(tmp === -1 || tmp.get(0) === this.get_container().get(0)) { tmp = -1; }
        this.clean_node(tmp);
        this.__callback({ "obj" : d, "parent" : tmp });
        if(callback) { callback.call(this, d); }
        return d;
      }
function (obj, position, js, callback, is_loaded) {
        obj = this._get_node(obj);
        position = typeof position === "undefined" ? "last" : position;
        var d = $("<li>"),
          s = this._get_settings().core,
          tmp;

        if(obj !== -1 && !obj.length) { return false; }
        if(!is_loaded && !this._is_loaded(obj)) { this.load_node(obj, function () { this.create_node(obj, position, js, callback, true); }); return false; }

        this.__rollback();

        if(typeof js === "string") { js = { "data" : js }; }
        if(!js) { js = {}; }
        if(js.attr) { d.attr(js.attr); }
        if(js.state) { d.addClass("jstree-" + js.state); }
        if(!js.data) { js.data = s.strings.new_node; }
        if(!$.isArray(js.data)) { tmp = js.data; js.data = []; js.data.push(tmp); }
        $.each(js.data, function (i, m) {
          tmp = $("<a>");
          if($.isFunction(m)) { m = m.call(this, js); }
          if(typeof m == "string") { tmp.attr('href','#')[ s.html_titles ? "html" : "text" ](m); }
          else {
            if(!m.attr) { m.attr = {}; }
            if(!m.attr.href) { m.attr.href = '#'; }
            tmp.attr(m.attr)[ s.html_titles ? "html" : "text" ](m.title);
            if(m.language) { tmp.addClass(m.language); }
          }
          tmp.prepend("<ins class='jstree-icon'>&#160;</ins>");
          if(m.icon) { 
            if(m.icon.indexOf("/") === -1) { tmp.children("ins").addClass(m.icon); }
            else { tmp.children("ins").css("background","url('" + m.icon + "') center center no-repeat"); }
          }
          d.append(tmp);
        });
        d.prepend("<ins class='jstree-icon'>&#160;</ins>");
        if(obj === -1) {
          obj = this.get_container();
          if(position === "before") { position = "first"; }
          if(position === "after") { position = "last"; }
        }
        switch(position) {
          case "before": obj.before(d); tmp = this._get_parent(obj); break;
          case "after" : obj.after(d);  tmp = this._get_parent(obj); break;
          case "inside":
          case "first" :
            if(!obj.children("ul").length) { obj.append("<ul>"); }
            obj.children("ul").prepend(d);
            tmp = obj;
            break;
          case "last":
            if(!obj.children("ul").length) { obj.append("<ul>"); }
            obj.children("ul").append(d);
            tmp = obj;
            break;
          default:
            if(!obj.children("ul").length) { obj.append("<ul>"); }
            if(!position) { position = 0; }
            tmp = obj.children("ul").children("li").eq(position);
            if(tmp.length) { tmp.before(d); }
            else { obj.children("ul").append(d); }
            tmp = obj;
            break;
        }
        if(tmp === -1 || tmp.get(0) === this.get_container().get(0)) { tmp = -1; }
        this.clean_node(tmp);
        this.__callback({ "obj" : d, "parent" : tmp });
        if(callback) { callback.call(this, d); }
        return d;
      }
Basic operations: create