function crtmenu() {
    var ua = YAHOO.env.ua,
	oAnim;  // Animation instance
                /*
		  "beforeshow" event handler for each submenu of the MenuBar
		  instance, used to setup certain style properties before
		  the menu is animated.
                */
    
    function onSubmenuBeforeShow(p_sType, p_sArgs) {
	var oBody,
	    oElement,
	    oShadow,
	    oUL;
	if (this.parent) {
	    oElement = this.element;
	    
	    /*
	      Get a reference to the Menu's shadow element and 
	      set its "height" property to "0px" to syncronize 
	      it with the height of the Menu instance.
	    */
	    
	    oShadow = oElement.lastChild;
	    oShadow.style.height = "0px";
	    
            
	    /*
	      Stop the Animation instance if it is currently 
	      animating a Menu.
	    */ 
	    if (oAnim && oAnim.isAnimated()) {    
		oAnim.stop();
		oAnim = null;
	    }
	    /*
	      Set the body element's "overflow" property to 
	      "hidden" to clip the display of its negatively 
	      positioned <ul> element.
	    */ 
	    oBody = this.body;
	    //  Check if the menu is a submenu of a submenu.
	    if (this.parent && 
		!(this.parent instanceof YAHOO.widget.MenuBarItem)) {
		/*
		  There is a bug in gecko-based browsers and Opera where 
		  an element whose "position" property is set to 
		  "absolute" and "overflow" property is set to 
		  "hidden" will not render at the correct width when
		  its offsetParent's "position" property is also 
		  set to "absolute."  It is possible to work around 
		  this bug by specifying a value for the width 
		  property in addition to overflow.
		*/
		
		if (ua.gecko || ua.opera) {
		    oBody.style.width = oBody.clientWidth + "px";
		}
                
		/*
		  Set a width on the submenu to prevent its 
		  width from growing when the animation 
		  is complete.
		*/
		
		if (ua.ie == 7) {
		    oElement.style.width = oElement.clientWidth + "px";
		}
	    }
	    oBody.style.overflow = "hidden";
	    /*
	      Set the <ul> element's "marginTop" property 
	      to a negative value so that the Menu's height
	      collapses.
	    */ 
	    oUL = oBody.getElementsByTagName("ul")[0];
	    oUL.style.marginTop = ("-" + oUL.offsetHeight + "px");
	}
    }
    /*
      "tween" event handler for the Anim instance, used to 
      syncronize the size and position of the Menu instance's 
      shadow and iframe shim (if it exists) with its 
      changing height.
    */
    
    function onTween(p_sType, p_aArgs, p_oShadow) {
	if (this.cfg.getProperty("iframe")) {
	    this.syncIframe();
	}
	if (p_oShadow) {
	    p_oShadow.style.height = this.element.offsetHeight + "px";
	}
    }
    /*
      "complete" event handler for the Anim instance, used to 
      remove style properties that were animated so that the 
      Menu instance can be displayed at its final height.
    */
    
    function onAnimationComplete(p_sType, p_aArgs, p_oShadow) {
	var oBody = this.body,
	    oUL = oBody.getElementsByTagName("ul")[0];
	if (p_oShadow) {
	    p_oShadow.style.height = this.element.offsetHeight + "px";
	}
	oUL.style.marginTop = "";
	oBody.style.overflow = "";
	//  Check if the menu is a submenu of a submenu.
	
	if (this.parent && 
                        !(this.parent instanceof YAHOO.widget.MenuBarItem)) {
	    // Clear widths set by the "beforeshow" event handler
	    if (ua.gecko || ua.opera) {
		oBody.style.width = "";
	    }
	    if (ua.ie == 7) {
                            this.element.style.width = "";
	    }
	}
    }
    /*
      "show" event handler for each submenu of the MenuBar 
      instance - used to kick off the animation of the 
                     <ul> element.
    */
    
    function onSubmenuShow(p_sType, p_sArgs) {
	var oElement,
	    oShadow,
	    oUL;
	
	if (this.parent) {
	    oElement = this.element;
	    oShadow = oElement.lastChild;
	    oUL = this.body.getElementsByTagName("ul")[0];
	    /*
	      Animate the <ul> element's "marginTop" style 
	      property to a value of 0.
	    */
	    oAnim = new YAHOO.util.Anim(oUL, 
					{ marginTop: { to: 0 } },
					.5, YAHOO.util.Easing.easeOut);
	    
	    oAnim.onStart.subscribe(function () {
		    oShadow.style.height = "100%";
                        });
	    
	    oAnim.animate();
	    /*
	      Subscribe to the Anim instance's "tween" event for 
	      IE to syncronize the size and position of a 
	      submenu's shadow and iframe shim (if it exists)  
	      with its changing height.
	    */
	    
	    if (YAHOO.env.ua.ie) {
		oShadow.style.height = oElement.offsetHeight + "px";
		/*
		  Subscribe to the Anim instance's "tween"
		  event, passing a reference Menu's shadow 
		  element and making the scope of the event 
		  listener the Menu instance.
		*/
		oAnim.onTween.subscribe(onTween, oShadow, this);
	    }
	    /*
	      Subscribe to the Anim instance's "complete" event,
	      passing a reference Menu's shadow element and making 
	      the scope of the event listener the Menu instance.
	    */
	    oAnim.onComplete.subscribe(onAnimationComplete, oShadow, this);
	}
    }
    /*
      Instantiate a MenuBar:  The first argument passed to the 
      constructor is the id of the element in the page 
      representing the MenuBar; the second is an object literal 
      of configuration properties.
    */
    
    var oMenuBar = new YAHOO.widget.MenuBar("mymenubar", { 
	    autosubmenudisplay: true, 
	    hidedelay: 750, 
	    lazyload: true });
    /*
      Subscribe to the "beforeShow" and "show" events for 
      each submenu of the MenuBar instance.
    */
    
    oMenuBar.subscribe("beforeShow", onSubmenuBeforeShow);
    oMenuBar.subscribe("show", onSubmenuShow);
    
    /*
      Call the "render" method with no arguments since the 
      markup for this MenuBar already exists in the page.
    */
    
    oMenuBar.render();          
    
};

YAHOO.util.Event.onContentReady("mymenubar", crtmenu);