QueryString Parser/Stringifier

qs.js

// THIS CODE IS LICENCED UNDER WTFPL

var qs = {
  get: function () {
    return qs.parse(window.location.search.substring(1));
  },
  parse: function (str) {
    return str.split('&').map(function (value) { return value.split('='); })
      .reduce(function (obj, pair) {
        obj[pair[0]] = decodeURIComponent(pair[1]);
        return obj;
      }, {});
  },
  stringify: function (obj) {
    return Object.keys(obj).map(function (key) {
      return [key, encodeURIComponent(obj[key])].join('=');
    }).join('&');
  }
};