//把url的参数部分转化成json对象    parseQueryString: function (url) {        var reg_url = /^[^\?]+\?([\w\W]+)$/,            reg_para = /([^&=]+)=([\w\W]*?)(&|$|#)/g,            arr_url = reg_url.exec(url),            ret = {};        if (arr_url && arr_url[1]) {            var str_para = arr_url[1], result;            while ((result = reg_para.exec(str_para)) != null) {                ret[result[1]] = result[2];            }        }        return ret;    } // 通过key获取url中的参数值    getQueryString: function (name) {        var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)", "i");        var r = window.location.search.substr(1).match(reg);        if (r != null) return unescape(r[2]);        return null;    }