使用示例：
复制代码 代码如下:
var qs = new querystring(query);
qs.set(ajaxids, ids)
qs.set(ajaxsn, new date())
query = qs.tostr();
也可以连续调用：
复制代码 代码如下:
query = new querystring(query).set(ajaxids, ids).set(ajaxsn, new date()).tostr();
其它用法就自己看代码琢磨吧。
完整代码：
复制代码 代码如下:
querystring = function(qs){
    this.p={};
    if(!qs)
        url=location.search;
    if(qs) {
        var b = qs.indexof('?');
        var e = qs.indexof('#');
        if(b >= 0){
            qs = e             if(qs.length > 0){
                qs = qs.replace(/\+/g, ' ');
                var a = qs.split('&');
                for (var i = 0; i                     var t = a[i].split('=');
                    var n = decodeuricomponent(t[0]);
                    var v = (t.length == 2) ? decodeuricomponent(t[1]) : n;
                    this.p[n] = v;
                }
            }
        }
    }
    this.set = function(name, value){
        this.p[name] = value;
        return this;
    };
    this.get = function(name, def){
        var v = this.p[name];
        return (v != null) ? v : def;
    };
    this.has = function(name) {
        return this.p[name] != null;
    };
    this.tostr = function() {
        var r='?';
        for (var k in this.p) {
            r += encodeuricomponent(k) + '=' + encodeuricomponent(this.p[k]) + '&';
        }
        return r;
    };
};