// JavaScript Document

YAHOO.util.Event.onContentReady("navBar", function () {
        var ua = YAHOO.env.ua,
            oAnim;  // Animation instance
        function onSubmenuBeforeShow(p_sType, p_sArgs) {
            var oBody,
                oElement,
                oShadow,
                oUL;
            if (this.parent) {
                oElement = this.element;
                oShadow = oElement.lastChild;
                oShadow.style.height = "0px";                    
                if (oAnim && oAnim.isAnimated()) {
                    oAnim.stop();
                    oAnim = null;
                }
                oBody = this.body;
                if (this.parent && 
                    !(this.parent instanceof YAHOO.widget.MenuBarItem)) {
                    if (ua.gecko) {
                        oBody.style.width = oBody.clientWidth + "px";
                    }
                    if (ua.ie == 7) {
                        oElement.style.width = oElement.clientWidth + "px";
                    }
                }
                oBody.style.overflow = "hidden";
                oUL = oBody.getElementsByTagName("ul")[0];
                oUL.style.marginTop = ("-" + oUL.offsetHeight + "px");
            }
        }

        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";
            }
        }

        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 = "";
            if (this.parent && 
                !(this.parent instanceof YAHOO.widget.MenuBarItem)) {
                if (ua.gecko) {
                    oBody.style.width = "";
                }
                if (ua.ie == 7) {
                    this.element.style.width = "";
                }
            }
        }


        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];
                oAnim = new YAHOO.util.Anim(oUL, 
                    { marginTop: { to: 0 } },
                    .5, YAHOO.util.Easing.easeOut);
                oAnim.onStart.subscribe(function () {
                    oShadow.style.height = "100%";
                });
                oAnim.animate();
                if (YAHOO.env.ua.ie) {
                    oShadow.style.height = oElement.offsetHeight + "px";
                    oAnim.onTween.subscribe(onTween, oShadow, this);
                }
                oAnim.onComplete.subscribe(onAnimationComplete, oShadow, this);
            }
        }
        var oMenuBar = new YAHOO.widget.MenuBar("navBar", { 
                                                    autosubmenudisplay: true, 
                                                    hidedelay: 750, 
                                                    lazyload: true });
        oMenuBar.subscribe("beforeShow", onSubmenuBeforeShow);
        oMenuBar.subscribe("show", onSubmenuShow);
        oMenuBar.render();          
    });