code: function(key, value) {
  			var _this = this;
  			
  			try {
  				_beginTransaction(_this._engine);
  				_this._engine.setItem(key, value);
  				_commitTransaction(_this._engine);
  				_this.length = _this._engine.length;
  				return true;
  			}
  			catch (e) {
  				return false;
  			}
  		}
docs: /*
  Implementation to remove an item from the storage engine.
  @see YAHOO.util.Storage._setItem