YAHOO.util.Event.onContentReady("bottommenubar", function()
  {
      var oSaveFunction = YAHOO.widget.Menu.prototype.setInitialFocus;
      
      YAHOO.widget.Menu.prototype.setInitialFocus = function() {};
      
      var oMenuBar=new YAHOO.widget.MenuBar("bottommenubar", {autosubmenudisplay:true});
      
      oMenuBar.render();
      
      // Restore menu focus function
      YAHOO.widget.Menu.prototype.setInitialFocus = oSaveFunction;
  }
);