code: function (module, state) {
  
              var states;
  
              if (typeof module !== "string" || typeof state !== "string") {
                  throw new Error("Missing or invalid argument");
              }
  
              states = {};
              states[module] = state;
  
              return YAHOO.util.History.multiNavigate(states);
          }
docs: Call this method when you want to store a new entry in the browser's history.
  
  @method navigate
  @param {string} module Non-empty string representing your module.
  @param {string} state String representing the new state of the specified module.
  @return {boolean} Indicates whether the new state was successfully added to the history.
  @public