YAHOO.util.Event.onContentReady("menubar", 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("menubar", { 
											autosubmenudisplay: true,
											hidedelay: 750,
											lazyload: true });
	/*
	Define an array of object literals, each containing 
	the data necessary to create a submenu.
	*/

	var aSubmenuData = [
		{
            id: "Home",
			itemdata: [
				{ text: "Chairman Message", url: "/about/chairmessage.shtml" },
				{ text: "Mission Statement", url: "/about/mission.shtml" },
				{ text: "History", url: "/about/history.shtml" },
				{ text: "Board Members", url: "/about/boardmembers.shtml" },
				{ text: "Staff Members", url: "/about/staffmembers.shtml" },
                { text: "Contact Us", url: "/contact-us/index.shtml" }
			]
		},
		{
			id: "affiliatemembers", 
			itemdata: [
				{ text: "Arizona", url: "/affiliate-members/arizona.shtml" },
				{ text: "California", url: "/affiliate-members/california.shtml" },
				{ text: "Connecticut", url: "/affiliate-members/connecticut.shtml" },
				{ text: "Florida", url: "/affiliate-members/florida.shtml" },
				{ text: "Illinois", url: "/affiliate-members/illinois.shtml" },
				{ text: "Kansas", url: "/affiliate-members/kansas.shtml" },
				{ text: "Maryland", url: "/affiliate-members/maryland.shtml" },
				{ text: "Massachusetts", url: "/affiliate-members/massachusetts.shtml" },
				{ text: "Minnesota", url: "/affiliate-members/minnesota.shtml" },
				{ text: "North Carolina", url: "/affiliate-members/north-carolina.shtml" },
				{ text: "Ohio", url: "/affiliate-members/ohio.shtml" },
				{ text: "Oklahoma", url: "/affiliate-members/oklahoma.shtml" },
				{ text: "Texas", url: "/affiliate-members/texas.shtml" },
				{ text: "Washington", url: "/affiliate-members/washington.shtml" }
			]    
		},
		{
			id: "programs",
			itemdata: [
				{ text: "Youth Leadership/Dan Than Corps", url: "/danthan/index.shtml" },
				{ text: "Entrepreneurship", url: "#" },
				{ text: "Other Programs", url: "#"}
			]
		},
		{
			id: "nationalconference",
			itemdata: [
				{ text: "Summit & Banquet", url: "/national-conference/index.shtml" },
				{ text: "Trainer Bio", url: "#" },
                { text: "Lodging & Direction", url: "/national-conference/lodging.shtml" },
                { text: "Registration", url: "/forms/conference-registration.shtml" }
			]
		},
		{
			id: "joinus",
			itemdata: [
				{ text: "Membership", url: "/join-us/index.shtml#membership" },
				{ text: "Jobs/Internships", url: "/join-us/index.shtml#internship" },
				{ text: "Volunteer", url: "/join-us/index.shtml#volunteer" },
				{ text: "Donate", url: "/join-us/index.shtml#donate" }
			]
		},
		{
			id: "media",
			itemdata: [
				{ text: "Press Releases", url: "/media/press-releases.shtml" },
				{ text: "FAQ", url: "/media/faq.shtml" },
                { text: "Photo Galleries", url: "/gallery/index.shtml" },
				{ text: "Videos", url: "/media/videos.shtml"}

			]
		}
	];

    /*
        animation
    */
	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;

            /*
                Change the width of the dropdown menu
                if its width is small its parent
            */
			if( oElement.offsetWidth < this.parent.srcElement.clientWidth){
                oElement.style.width = (this.parent.srcElement.clientWidth - 2) + "px";
			}


            /*
                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 } }, 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);
        }
    }

 	/*
	    Subscribe to the "beforerender" event, adding a submenu
	    to each of the items in the MenuBar instance.
	*/
	
	oMenuBar.subscribe("beforeRender", function (){
		var nSubmenus = aSubmenuData.length, i;
		if (this.getRoot() == this) {
			for (i = 0; i < nSubmenus; i++) {
				this.getItem(i).cfg.setProperty("submenu", aSubmenuData[i]);
			}
		}
	});

	oMenuBar.subscribe("beforeShow", onSubmenuBeforeShow);
	oMenuBar.subscribe("show", onSubmenuShow);

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

	oMenuBar.render();

});