function getQueryString() {

    var result = location.search.match(new RegExp("[\?\&][^\?\&]+=[^\?\&]+", "g"));

    if (result == null) {

        return "";

    }

    for (var i = 0; i < result.length; i++) {

        result[i] = result[i].substring(1);

    }

    return result;

}

//根据QueryString参数名称获取值

function getQueryStringByName(name) {

    var result = location.search.match(new RegExp("[\?\&]" + name + "=([^\&]+)", "i"));

    if (result == null || result.length < 1) {

        return "";

    }

    return result[1];

}