javascript hash query plugin

jquery.hashQuery.js

(function ($) {
  $.hashQuery = {
    get: function (key) {
      d = {};
      $.each(window.location.hash.slice(1).split("&"), function (b, a) {
        a !== "" && (a.indexOf("=") !== -1 ? (a = a.split("="), d[a[0]] = a[1]) : d[a] = "")
      });
      if ($.isEmptyObject(d)) {
        return !1
      }
      if (key !== undefined) {
        return d[key];
      } else {
        return d;
      }
    },
    remove: function(key) {
      var arr = [];
      $.each(window.location.hash.slice(1).split("&"), function (b, a) {
        var string = a.split("=")[0].toLowerCase();
        if (string !== key) {
          arr.push(a);
        }
      });
      window.location.hash = arr.join("&");
    },
    add: function (key, value) {
      var h = window.location.hash.slice(1);
      if (h !== "") {
        h += "&";
      }
      h += key + "=" + value;
      window.location.hash = h;
    },
    replace: function(key, value) {
      this.remove(key);
      this.add(key, value);
    }
  }
})(jQuery);