//获得参数的方法

var request = {

    QueryString:function(val) {

        var uri = window.location.search;

        var re = newRegExp(""+ val +"=([^&?]*)","ig");

        var str = ((uri.match(re)) ? (uri.match(re)[0].substr(val.length + 1)) :null);

        if(str != null && str != 'null' && str != ''){

            str = decodeURI(str);

        }

        return str;

    }

};

//获取参数例子

加入   浏览器地址为：http://www.xxxx.com?id=12345

var id = request.QueryString(id);

console.log(id);//测试输出一下id    会打印出12345