/*
                 Initialize and render the MenuBar when its elements are ready 
                 to be scripted.
            */

            YAHOO.util.Event.onContentReady("topnavigation", function () {

                /*
					Instantiate a MenuBar:  The first argument passed to the constructor
					is the id for the Menu element to be created, the second is an 
					object literal of configuration properties.
                */

                var oMenuBar = new YAHOO.widget.MenuBar("topnavigation", { 
                                                            autosubmenudisplay: true, 
                                                            hidedelay: 750, 
                                                            lazyload: true });

                /*
                     Call the "render" method with no arguments since the 
                     markup for this MenuBar instance is already exists in 
                     the page.
                */

                oMenuBar.render();

            });