Ext不改变地址栏跳转页面

east.load({
                    url: "../Pages/BackEnd/PointAccountSearch.htm", //+ Math.random(),
                    scripts: true, //一定要设置成 true，否则 里面的脚本不执行
                    callback: function (el, success, response) {
                        Ext.getBody().unmask();
                        showWindow.hide();
                    }

                });