code: function() {
              for (var i = this._keys.length - 1; 0 <= i; i -= 1) {
                  var key = this._keys[i];
                  _engine.callSWF("removeItem", [key]);
              }
  
              this._keys = [];
              this.length = 0;
          }
docs: /*
  Implementation to clear the values from the storage engine.
  @see YAHOO.util.Storage._clear