/*
 * storage for jquery collapse
 * --
 * source: http://github.com/danielstocks/jquery-collapse/
 * site: http://webcloud.se/jquery-collapse
 *
 * @author daniel stocks (http://webcloud.se)
 * copyright 2013, daniel stocks
 * released under the mit, bsd, and gpl licenses.
 */
/* �������������֮�� www.lanrenzhijia.com */
(function($) {

  var storage_key = "jquery-collapse";

  function storage(id) {
    var db;
    try {
      db = window.localstorage || $.fn.collapse.cookiestorage;
    } catch(e) {
      db = false;
    }
    return db ? new _storage(id, db) : false;
  }
  function _storage(id, db) {
    this.id = id;
    this.db = db;
    this.data = [];
  }
  _storage.prototype = {
    write: function(position, state) {
      var _this = this;
      _this.data[position] = state ? 1 : 0;
      // pad out data array with zero values
      $.each(_this.data, function(i) {
        if(typeof _this.data[i] == 'undefined') {
          _this.data[i] = 0;
        }
      });
      var obj = this.getdataobject();
      obj[this.id] = this.data;
      this.db.setitem(storage_key, json.stringify(obj));
    },
    read: function() {
      var obj = this.getdataobject();
      return obj[this.id] || [];
    },
    getdataobject: function() {
      var string = this.db.getitem(storage_key);
      return string ? json.parse(string) : {};
    }
  };

  jquerycollapsestorage = storage;

})(jquery);
/* �������������֮�� www.lanrenzhijia.com */