querystring.js

var querystring=(function (s) {
    if (s === "")return {};var c = {};for (var e = 0; e < s.length; ++e) {
      var f = s[e].split("=");if (f.length !== 2)continue;c[f[0]] = decodeURIComponent(f[1].replace(/\+/g, " "));
    }return c;
})(window.location.search.substr(1).split("&"));