Deserialise the query string in JavaScript

gistfile1.js

if (!window.query) {
  (function () {
    var match,
        search = /([^&=]+)=?([^&]*)/g,
        decode = function (s) { return decodeURIComponent(s.replace(/\+/g, ' ')); },
        query  = window.location.search.substring(1);

    window.query = {};
    while (match = search.exec(query)) {
      window.query[decode(match[1])] = decode(match[2]);
    }
  })();
}

Based on http://stackoverflow.com/a/2880929/876937