wpj.serializer = {
   serializeHash: function(values) {
      var value,
         serValue,
         result = [],
         enc = encodeURIComponent;

      for (var index in values) {
         value = values[index];
         if ($.isArray(value)) {
            serValue = enc(JSON.stringify(value));
         } else if (typeof value === 'boolean') {
            serValue = value ? 1 : 0;
         } else {
            serValue = enc(JSON.stringify(value));
         }

         result.push([index, serValue].join('='));
      }

      return result.join('&');
   },
   deserializeHash: function(hash) {
      // Normalize hash
      if (hash[0] == '#') {
         hash = hash.substr(1);
      }

      var values = hash.split('&'),
         result = {},
         parts,
         dec = decodeURIComponent;

      for (var index in values) {
         parts = values[index].split('=');
         if (parts.length == 2) {
            result[parts[0]] = JSON.parse(dec(parts[1]));
         }
      }

      return result;
   },
   serializeUrl: function(values, name) {
      var value,
         serValue,
         result = [];

      for (var index in values) {
         value = values[index];
         if ($.isArray(value)) {
            result.push(wpj.serializer.serializeUrl(value, index));
         } else {
            serValue = encodeURIComponent(value);
            result.push([name || index, serValue].join('='));
         }
      }

      return result.join('&');
   },
   unserializeUrl: function(url) {
      var parts = url.split('&'),
         pair,
         values = [];

      $.each(parts, function(index, value) {
         pair = value.split('=');
         if (pair.length == 2) {
            values.push({
               name: pair[0],
               value: decodeURIComponent(pair[1].replace(/\+/g, ' '))
            });
         }
      });

      return wpj.serializer.arrayToDict(values);
   },
   arrayToDict: function(values) {
      var result = {},
         index,
         key,
         value;

      for (index in values) {
         key = values[index]['name'];
         value = values[index]['value'];

         if (result[key] != undefined) {
            if (typeof result[key] != 'object') {
               result[key] = [result[key]];
            }
            result[key].push(value);
         } else {
            result[key] = value;
         }
      }

      return result;
   }
};