function param(a) {

    var s = [],

        rbracket = /\[\]$/,

        isArray = function(obj) {

            return Object.prototype.toString.call(obj) === '[object Array]';

        },

        add = function(k, v) {

            v = typeof v === 'function' ? v() : v === null ? '' : v === undefined ? '' : v;

            s[s.length] = encodeURIComponent(k) + '=' + encodeURIComponent(v);

        },

        buildParams = function(prefix, obj) {

            var i, len, key;

            if (prefix) {

                if (isArray(obj)) {

                    for (i = 0, len = obj.length; i < len; i++) {

                        if (rbracket.test(prefix)) {

                            add(prefix, obj[i]);

                        } else {

                            buildParams(prefix + '[' + (typeof obj[i] === 'object' ? i : '') + ']', obj[i]);

                        }

                    }

                } else if (obj && String(obj) === '[object Object]') {

                    for (key in obj) {

                        buildParams(prefix + '[' + key + ']', obj[key]);

                    }

                } else {

                    add(prefix, obj);

                }

            } else if (isArray(obj)) {

                for (i = 0, len = obj.length; i < len; i++) {

                    add(obj[i].name, obj[i].value);

                }

            } else {

                for (key in obj) {

                    buildParams(key, obj[key]);

                }

            }

            return s;

        };

    return buildParams('', a).join('&').replace(/%20/g, '+');

}

function parseQueryString(url) {

    var obj = {};

    var keyvalue = [];

    var key = "",

        value = "";

    var paraString = url.substring(url.indexOf("?") + 1, url.length).split("&");

    for (var i in paraString) {

        keyvalue = paraString[i].split("=");

        key = keyvalue[0];

        value = keyvalue[1];

        obj[key] = value;

    }

    return obj;

}