/* =================================================================================================
 * TransMenu
 * March, 2003
 *
 * Customizable multi-level animated DHTML menus with transparency.
 *
 * Copyright 2003-2004, Aaron Boodman (www.youngpup.net)
 * =================================================================================================
 * "Can I use this?"
 *
 * Use of this library is governed by the Creative Commons Attribution 2.0 License. You can check it
 * out at: http://creativecommons.org/licenses/by/2.0/
 *
 * Basically: You may copy, distribute, and eat this code as you wish. But you must give me credit
 * for writing it. You may not misrepresent yourself as the author of this code.
 * =================================================================================================
 * "It's kinda hard to read, though"
 *
 * The uncompressed, commented version of this script can be found at:
 * http://youngpup.net/projects/transMenus
 * =================================================================================================
 * updates:
 * 04.19.04 fixed cascade problem with menus nested greater than two levels.
 * 12.23.03 added hideCurrent for menu actuators with no menus. renamed to TransMenu.
 * 04.18.03	fixed render bug in IE 5.0 Mac by removing that browser from compatibility table ;)
 *			also made gecko check a little more strict by specifying build no.
 * ============================================================================================== */



//==================================================================================================
// Configuration properties
//==================================================================================================
TransMenu.spacerGif = "img/x.gif";                     // path to a transparent spacer gif
TransMenu.dingbatOn = "img/submenu-on.gif";            // path to the active sub menu dingbat
TransMenu.dingbatOff = "img/submenu-off.gif";          // path to the inactive sub menu dingbat
TransMenu.dingbatSize = 14;                            // size of the dingbat (square shape assumed)
TransMenu.menuPadding = 5;                             // padding between menu border and items grid
TransMenu.itemPadding = 3;                             // additional padding around each item
TransMenu.shadowSize = 2;                              // size of shadow under menu
TransMenu.shadowOffset = 3;                            // distance shadow should be offset from leading edge
TransMenu.shadowColor = "#888";                        // color of shadow (transparency is set in CSS)
TransMenu.shadowPng = "img/grey-40.png";               // a PNG graphic to serve as the shadow for mac IE5
TransMenu.backgroundColor = "white";                   // color of the background (transparency set in CSS)
TransMenu.backgroundPng = "img/white-90.png";          // a PNG graphic to server as the background for mac IE5
TransMenu.hideDelay = 1000;                            // number of milliseconds to wait before hiding a menu
TransMenu.slideTime = 400;   
TransMenu.autoposition = 1; // number of milliseconds it takes to open and close a menu


//==================================================================================================
// Internal use properties
//==================================================================================================
TransMenu.reference = {topLeft:1,topRight:2,bottomLeft:3,bottomRight:4};
TransMenu.direction = {down:1,right:2,up:3,left:4,dleft:5};
TransMenu.registry = [];
TransMenu._maxZ = 100;



//==================================================================================================
// Static methods
//==================================================================================================
// supporting win ie5+, mac ie5.1+ and gecko >= mozilla 1.0
TransMenu.isSupported = function() {
    var ua = navigator.userAgent.toLowerCase();
    var pf = navigator.platform.toLowerCase();
    var an = navigator.appName;
    var r = true;

    if (ua.indexOf("gecko") > -1 && navigator.productSub >= 20020605) r = true; // gecko >= moz 1.0
    else if (an == "Microsoft Internet Explorer"  ) {
        if (document.getElementById) { // ie5.1+ mac,win
            if (pf.indexOf("mac") == 0) {
                r = /msie (\d(.\d*)?)/.test(ua) && Number(RegExp.$1) >= 5.1;
            }
            else r = true;
        }
    }

    return r;
};

// call this in onload once menus have been created
TransMenu.initialize = function() {
    for (var i = 0, menu = null; menu = this.registry[i]; i++) {
        menu.initialize();
    }
};

// call this in document body to write out menu html
TransMenu.renderAll = function() {
    var aMenuHtml = [];
    for (var i = 0, menu = null; menu = this.registry[i]; i++) {
        aMenuHtml[i] = menu.toString();
    }
    document.write(aMenuHtml.join(""));
};

//==================================================================================================
// TransMenu constructor (only called internally)
//==================================================================================================
// oActuator            : The thing that causes the menu to be shown when it is mousedover. Either a
//                        reference to an HTML element, or a TransMenuItem from an existing menu.
// iDirection           : The direction to slide out. One of TransMenu.direction.
// iLeft                : Left pixel offset of menu from actuator
// iTop                 : Top pixel offset of menu from actuator
// iReferencePoint      : Corner of actuator to measure from. One of TransMenu.referencePoint.
// parentMenuSet        : Menuset this menu will be added to.
//==================================================================================================
function TransMenu(oActuator, iDirection, iLeft, iTop, iReferencePoint, parentMenuSet) {
    // public methods
    this.addItem = addItem;
    this.addMenu = addMenu;
    this.toString = toString;
    this.initialize = initialize;
    this.isOpen = false;
    this.show = show;
    this.hide = hide;
    this.items = [];
    //modid=TransMenu.modid;
    // events
    this.onactivate = new Function();       // when the menu starts to slide open
    this.ondeactivate = new Function();     // when the menu finishes sliding closed
    this.onmouseover = new Function();      // when the menu has been moused over
    this.onqueue = new Function();          // hack .. when the menu sets a timer to be closed a little while in the future
    this.ondequeue = new Function();

    // initialization
    this.index = TransMenu.registry.length;
    TransMenu.registry[this.index] = this;

    var id = "TransMenu" + this.index ;
    var contentHeight = null;
    var contentWidth = null;
    var childMenuSet = null;
    var animating = false;
    var childMenus = [];
    var slideAccel = -1;
    var elmCache = null;
    var ready = false;
    var _this = this;
    var a = null;

    //	var pos = (iDirection == TransMenu.direction.down || iDirection == TransMenu.direction.up)? "top" : "left";
    var pos = (iDirection == TransMenu.direction.down || iDirection == TransMenu.direction.up || iDirection == TransMenu.direction.dleft)? "top" : "left";
    var dim = null;

    // private and public method implimentations
    function addItem(sText, sUrl, browserNav, active) {
        var item = new TransMenuItem(sText, sUrl, this, browserNav, active,(id+"-"+this.items.length),iDirection);
        item._index = this.items.length;
        this.items[item._index] = item;
    }

    function addMenu(oMenuItem,offx,offy) {
        if (!oMenuItem.parentMenu == this) throw new Error("Cannot add a menu here");

        var iDirec = TransMenu.direction.right;
        var iRef = TransMenu.reference.topRight;
        if (iDirection == TransMenu.direction.left || iDirection == TransMenu.direction.dleft)
        {
            iDirec = TransMenu.direction.left;
            iRef = TransMenu.reference.topLeft;
        }
        if (childMenuSet == null) childMenuSet = new TransMenuSet(iDirec, offx, offy, iRef);

        var m = childMenuSet.addMenu(oMenuItem);

        childMenus[oMenuItem._index] = m;
        m.onmouseover = child_mouseover;
        m.ondeactivate = child_deactivate;
        m.onqueue = child_queue;
        m.ondequeue = child_dequeue;

        return m;
    }

    function initialize() {
        initCache();
        initEvents();
        initSize();
        ready = true;
    }

    function show() {
        //dbg_dump("show");
        if (ready) {
            //dbg_msg("ID: " + id);
            _this.isOpen = true;
            animating = true;
            setContainerPos();
            elmCache["clip"].style.visibility = "visible";
            elmCache["clip"].style.zIndex = TransMenu._maxZ++;
            //	 elmCache["clip"].style.zIndex = 100;
            //dbg_dump("maxZ: " + TransMenu._maxZ);
            slideStart();
            // ADD LINE BELOW
            if(TransMenu.selecthack){

                WCH.Apply(id);
            }
            _this.onactivate();
        }
    }

    function hide() {
        if (ready) {
            _this.isOpen = false;
            animating = true;

            for (var i = 0, item = null; item = elmCache.item[i]; i++)
                dehighlight(item);

            if (childMenuSet) childMenuSet.hide();

            slideStart();
            //ADD LINE BELOW
            if(TransMenu.selecthack){
                WCH.Discard(id);
            }
            _this.ondeactivate();
        }
    }

    function setContainerPos() {
        var sub = oActuator.constructor == TransMenuItem;
        var act = sub ? oActuator.parentMenu.elmCache["item"][oActuator._index] : oActuator;
        var el = act;
        /*
        var menu_items = el.parentNode.innerHTML;
        menu_items = menu_items.split(" ");
        menu_items = menu_items[2].split("=");
        menu_items = menu_items[1];
        menu_items = menu_items.replace(/"/,"");
        menu_items = menu_items.replace(/"/,"");
        var menuObj = document.getElementById(menu_items);
        alert( menuObj.offsetLeft );
        //*/

        var x = 0;
        var y = 0;


        var ua = navigator.userAgent.toLowerCase();
        if(TransMenu.autoposition){


            if ( ua.indexOf("opera") >= 0 )
            {
                var minX = 0;
                var maxX = (window.innerWidth ? window.innerWidth + document.body.scrollLeft : document.body.clientWidth + document.body.scrollLeft) - parseInt(elmCache["clip"].style.width);
                var minY = 0;
                var maxY = (window.innerHeight ? window.innerHeight + document.body.scrollTop : document.body.clientHeight + document.body.scrollTop) - parseInt(elmCache["clip"].style.height);

            }else{


                var minX = 0;
                var maxX = (window.innerWidth ? window.innerWidth + window.scrollX : document.documentElement.clientWidth + document.documentElement.scrollLeft) - parseInt(elmCache["clip"].style.width);
                var minY = 0;
                var maxY = (window.innerHeight ? window.innerHeight + window.scrollY : document.documentElement.clientHeight + document.documentElement.scrollTop) - parseInt(elmCache["clip"].style.height);
                // alert(document.documentElement.clientHeight);
            }
        }

        // add up all offsets... subtract any scroll offset
        while (sub ? el.parentNode.className.indexOf("transMenu") == -1 : el.offsetParent) {
            x += el.offsetLeft;
            y += el.offsetTop;

            if (el.scrollLeft) x -= el.scrollLeft;
            if (el.scrollTop) y -= el.scrollTop;


            el = el.offsetParent;
        }

        if (oActuator.constructor == TransMenuItem) {
            x += parseInt(el.parentNode.style.left);
            y += parseInt(el.parentNode.style.top);
        }

        switch (iReferencePoint) {
            case TransMenu.reference.topLeft:
                break;
            case TransMenu.reference.topRight:
                x += act.offsetWidth;
                break;
            case TransMenu.reference.bottomLeft:
                y += act.offsetHeight;
                break;
            case TransMenu.reference.bottomRight:
                x += act.offsetWidth;
                y += act.offsetHeight;
                break;
        }
        //  Begin fix for Safari 1.2 Submenu Positions
        //if (act.tagName == "A" && act.childNodes[0] && ua.indexOf("safari") > -1){
        x += el.offsetLeft;
        y += el.offsetTop;
        //}
        if ((act.tagName == "TR" && act.childNodes[0]) && ua.indexOf("safari") >= 0){
            if(iDirection==4){
                //  y += act.childNodes[0].offsetTop;
            }else  {
                xx_offset=0;
                if(TransMenu.sub_indicator){
                    xx_offset=act.childNodes[1].offsetWidth;
                }
                start=ua.indexOf("safari");
                ver=parseInt(ua.substring((start+7),(start+10)));
                if(ver<500){
                    x += act.childNodes[0].offsetLeft + act.childNodes[0].offsetWidth + xx_offset ;
                    y += act.childNodes[0].offsetTop;
                }

            }
        }
        //Fix for opera
        if ((act.tagName == "TR" && ua.indexOf("opera") >= 0 )){
            //  y += act.childNodes[0].offsetTop;
        }

        x += iLeft;
        y += iTop;
        if(TransMenu.autoposition){
            x = Math.max(Math.min(x, maxX), minX);
            y = Math.max(Math.min(y, maxY), minY);
        }
        //alert(el.offsetTop);

        var ow = elmCache["items"].offsetWidth;
        var oh = elmCache["items"].offsetHeight;
        contentHeight = oh + TransMenu.shadowSize;
        contentWidth = ow + TransMenu.shadowSize;
        if (iDirection == TransMenu.direction.up )
        {
            y -= contentHeight;
        }
        if (iDirection == TransMenu.direction.left || iDirection == TransMenu.direction.dleft )
        {
            x -= contentWidth;
        }

        //  End fix for Safaria 1.2 Submenu Positions
        if(navigator.userAgent.indexOf("MSIE")>0) {
            x -= 142;
        } else if(navigator.userAgent.indexOf("Firefox")>0) {
            x -= 142;
        } else if(navigator.userAgent.indexOf("Safari")>0) {
            x -= 142;
        } else {
            x -= 142;
        }
        /*
        if(navigator.userAgent.indexOf("Camino")>0) {
            x -= 100;
        }
        if(navigator.userAgent.indexOf("Gecko/")>0) {
            x -= 100;
        }//*/

        elmCache["clip"].style.left = x + "px";
        elmCache["clip"].style.top = y + "px";

    }

    function slideStart() {
        var x0 = parseInt(elmCache["content"].style[pos]);
        var x1 = _this.isOpen ? 0 : -dim;

        if (a != null) a.stop();
        a = new Accelimation(x0, x1, TransMenu.slideTime, slideAccel);

        a.onframe = slideFrame;
        a.onend = slideEnd;

        a.start();
    }

    function slideFrame(x) {
        elmCache["content"].style[pos] = x + "px";
    }

    function slideEnd() {
        if (!_this.isOpen) elmCache["clip"].style.visibility = "hidden";
        animating = false;
    }

    function initSize() {
        // everything is based off the size of the items table...
        var ow = elmCache["items"].offsetWidth;
        var oh = elmCache["items"].offsetHeight;
        var ua = navigator.userAgent.toLowerCase();

        // clipping container should be ow/oh + the size of the shadow
        elmCache["clip"].style.width = ow + TransMenu.shadowSize +  2 + "px";
        elmCache["clip"].style.height = oh + TransMenu.shadowSize + 2 + "px";

        // same with content...
        elmCache["content"].style.width = ow + TransMenu.shadowSize + "px";
        elmCache["content"].style.height = oh + TransMenu.shadowSize + "px";

        contentHeight = oh + TransMenu.shadowSize;
        contentWidth = ow + TransMenu.shadowSize;

        dim = (iDirection == TransMenu.direction.down || iDirection == TransMenu.direction.up ) ? contentHeight : contentWidth;
        if (iDirection == TransMenu.direction.left || iDirection == TransMenu.direction.up )
        {
            dim = -dim;
        }
        // set initially closed
        elmCache["content"].style[pos] = -dim - TransMenu.shadowSize + "px";
        elmCache["clip"].style.visibility = "hidden";
        // elmCache["clip"].style.float = "left";
        // if *not* mac/ie 5
        if (ua.indexOf("mac") == -1 || ua.indexOf("gecko") > -1) {
            // set background div to offset size
            elmCache["background"].style.width = ow + "px";
            elmCache["background"].style.height = oh + "px";
            elmCache["background"].style.backgroundColor = TransMenu.backgroundColor;

            // shadow left starts at offset left and is offsetHeight pixels high
            elmCache["shadowRight"].style.left = ow + "px";
            elmCache["shadowRight"].style.height = oh - (TransMenu.shadowOffset - TransMenu.shadowSize) + "px";
            elmCache["shadowRight"].style.backgroundColor = TransMenu.shadowColor;

            // shadow bottom starts at offset height and is offsetWidth - shadowOffset 
            // pixels wide (we don't want the bottom and right shadows to overlap or we 
            // get an extra bright bottom-right corner)
            elmCache["shadowBottom"].style.top = oh + "px";
            elmCache["shadowBottom"].style.width = ow - TransMenu.shadowOffset + "px";
            elmCache["shadowBottom"].style.backgroundColor = TransMenu.shadowColor;
        }
        // mac ie is a little different because we use a PNG for the transparency
        else {
            // set background div to offset size
            elmCache["background"].firstChild.src = TransMenu.backgroundPng;
            elmCache["background"].firstChild.width = ow;
            elmCache["background"].firstChild.height = oh;

            // shadow left starts at offset left and is offsetHeight pixels high
            elmCache["shadowRight"].firstChild.src = TransMenu.shadowPng;
            elmCache["shadowRight"].style.left = ow + "px";
            elmCache["shadowRight"].firstChild.width = TransMenu.shadowSize;
            elmCache["shadowRight"].firstChild.height = oh - (TransMenu.shadowOffset - TransMenu.shadowSize);

            // shadow bottom starts at offset height and is offsetWidth - shadowOffset 
            // pixels wide (we don't want the bottom and right shadows to overlap or we 
            // get an extra bright bottom-right corner)
            elmCache["shadowBottom"].firstChild.src = TransMenu.shadowPng;
            elmCache["shadowBottom"].style.top = oh + "px";
            elmCache["shadowBottom"].firstChild.height = TransMenu.shadowSize;
            elmCache["shadowBottom"].firstChild.width = ow - TransMenu.shadowOffset;
        }
    }


    function initCache() {
        var menu = document.getElementById(id);
        var all = menu.all ? menu.all : menu.getElementsByTagName("*"); // IE/win doesn't support * syntax, but does have the document.all thing

        elmCache = {};
        elmCache["clip"] = menu;
        elmCache["item"] = [];

        for (var i = 0, elm = null; elm = all[i]; i++) {
            switch (elm.className) {
                case "items":
                    case "content":
                    case "background":
                    case "shadowRight":
                    case "shadowBottom":
                    elmCache[elm.className] = elm;
                break;
                case "item":
                    elm._index = elmCache["item"].length;
                elmCache["item"][elm._index] = elm;
                break;
            }
        }

        // hack!
        _this.elmCache = elmCache;
    }

    function initEvents() {
        // hook item mouseover
        for (var i = 0, item = null; item = elmCache.item[i]; i++) {
            item.onmouseover = item_mouseover;
            item.onmouseout = item_mouseout;
            item.onclick = item_click;
        }

        // hook actuation
        if (typeof oActuator.tagName != "undefined") {
            oActuator.onmouseover = actuator_mouseover;
            oActuator.onmouseout = actuator_mouseout;
        }

        // hook menu mouseover
        elmCache["content"].onmouseover = content_mouseover;
        elmCache["content"].onmouseout = content_mouseout;
    }

    function highlight(oRow) {
        oRow.className = "item hover";
        if (childMenus[oRow._index])
            if (TransMenu.sub_indicator &&   oRow.lastChild.firstChild.src){
                oRow.lastChild.firstChild.src = TransMenu.dingbatOn;
            }
    }

    function dehighlight(oRow) {
        oRow.className = "item";
        if (childMenus[oRow._index])
            if (TransMenu.sub_indicator &&   oRow.lastChild.firstChild.src){
                oRow.lastChild.firstChild.src = TransMenu.dingbatOff;
            }          }

        function item_mouseover() {
            if (!animating) {
                highlight(this);

                if (childMenus[this._index]) 
                    childMenuSet.showMenu(childMenus[this._index]);
                else if (childMenuSet) childMenuSet.hide();
            }
        }

        function item_mouseout() {
            if (!animating) {
                if (childMenus[this._index]){
                    //   childMenuSet.hideMenu(childMenus[this._index]);
                } else{    // otherwise child_deactivate will do this
                    dehighlight(this);
                }
            }
        }

        function item_click() {
            if (!animating) {
                if (_this.items[this._index].url) {

                    if (_this.items[this._index].target =="1") {
                        window.open(_this.items[this._index].url, "_blank");
                    }else if (_this.items[this._index].target =="2") {
                        window.open(_this.items[this._index].url, '', 'toolbar=no,location=no,status=no,menubar=no,scrollbars=yes,resizable=yes,width=780,height=550');

                    }else if (_this.items[this._index].target =="3") {
                        location.href = void(0);
                    }else{
                        location.href = _this.items[this._index].url;
                    }
                }
            }
        }
        function actuator_mouseover() {
            parentMenuSet.showMenu(_this);
        }

        function actuator_mouseout() {
            parentMenuSet.hideMenu(_this);
        }

        function content_mouseover() {
            if (!animating) {
                parentMenuSet.showMenu(_this);
                _this.onmouseover();
            }
        }

        function content_mouseout() {
            if (!animating) {
                parentMenuSet.hideMenu(_this);
            }
        }

        function child_mouseover() {
            if (!animating) {
                parentMenuSet.showMenu(_this);
            }
        }

        function child_deactivate() {
            for (var i = 0; i < childMenus.length; i++) {
                if (childMenus[i] == this) {
                    dehighlight(elmCache["item"][i]);
                    break;
                }
            }
        }

        function child_queue() {
            parentMenuSet.hideMenu(_this);
        }

        function child_dequeue() {
            parentMenuSet.showMenu(_this);
        }

        function toString() {
            var aHtml = [];


            var sClassName = "transMenu"  + (oActuator.constructor != TransMenuItem ? " top" : "");

            for (var i = 0, item = null; item = this.items[i]; i++) {
                aHtml[i] = item.toString(childMenus[i]);
            }

            return '<div id="' + id + '" class="' + sClassName + '">' +
                '<div class="content"><table class="items" cellpadding="0" cellspacing="0" border="0">' +
                aHtml.join('') +
                '</table>' +
                '<div class="shadowBottom"></div>' +
                '<div class="shadowRight"></div>' +
                '<div class="background"></div>' +
                '</div></div>';
        }
}


//==================================================================================================
// TransMenuSet
//==================================================================================================
// iDirection           : The direction to slide out. One of TransMenu.direction.
// iLeft                : Left pixel offset of menus from actuator
// iTop                 : Top pixel offset of menus from actuator
// iReferencePoint      : Corner of actuator to measure from. One of TransMenu.referencePoint.
//==================================================================================================
TransMenuSet.registry = [];

function TransMenuSet(iDirection, iLeft, iTop, iReferencePoint) {
    // public methods
    this.addMenu = addMenu;
    this.showMenu = showMenu;
    this.hideMenu = hideMenu;
    this.hide = hide;
    this.hideCurrent = hideCurrent;

    // initialization
    var menus = [];
    var _this = this;
    var current = null;

    this.index = TransMenuSet.registry.length;
    TransMenuSet.registry[this.index] = this;

    // method implimentations...
    function addMenu(oActuator) {
        var m = new TransMenu(oActuator, iDirection, iLeft, iTop, iReferencePoint, this);
        menus[menus.length] = m;
        return m;
    }

    function showMenu(oMenu) {
        if (oMenu != current) {
            // close currently open menu
            if (current != null) hide(current);

            // set current menu to this one
            current = oMenu;

            // if this menu is closed, open it
            oMenu.show();
        }
        else {
            // hide pending calls to close this menu
            cancelHide(oMenu);
        }
    }

    function hideMenu(oMenu) {
        //dbg_dump("hideMenu a " + oMenu.index);
        if (current == oMenu && oMenu.isOpen) {
            //dbg_dump("hideMenu b " + oMenu.index);
            if (!oMenu.hideTimer) scheduleHide(oMenu);
        }
    }

    function scheduleHide(oMenu) {
        //dbg_dump("scheduleHide " + oMenu.index);
        oMenu.onqueue();
        oMenu.hideTimer = window.setTimeout("TransMenuSet.registry[" + _this.index + "].hide(TransMenu.registry[" + oMenu.index + "])", TransMenu.hideDelay);
    }

    function cancelHide(oMenu) {
        //dbg_dump("cancelHide " + oMenu.index);
        if (oMenu.hideTimer) {
            oMenu.ondequeue();
            window.clearTimeout(oMenu.hideTimer);
            oMenu.hideTimer = null;
        }
    }

    function hide(oMenu) {
        if (!oMenu && current) oMenu = current;

        if (oMenu && current == oMenu && oMenu.isOpen) {
            hideCurrent();
        }
    }

    function hideCurrent() {
        if (null != current) {
            cancelHide(current);
            current.hideTimer = null;
            current.hide();
            current = null;
        }
    }
}

//==================================================================================================
// TransMenuItem (internal)
// represents an item in a dropdown
//==================================================================================================
// sText        : The item display text
// sUrl         : URL to load when the item is clicked
// oParent      : Menu this item is a part of
//==================================================================================================
function TransMenuItem(sText, sUrl, oParent, sTarget,active,id,iDirection) {
    this.toString = toString;
    texts = sText.split("#");
    //this.text = texts[0]; //Modified by scott at Nov 19, 2008
    //sText = texts[1]+"<BR/>"+texts[0];
    if( texts[0] == "Contact_us" ) {
        sText = '<img src="/images/menu_images/sub_contact.gif"></img>';
    } else if ( texts[0] == "Schedule" ) {
        sText = '<img src="/images/menu_images/sub_schedule.gif"></img>';
    } else if ( texts[0] == "Previous_events") { 
        sText = '<img src="/images/menu_images/sub_previous.gif"></img>';
    } else if ( texts[0] == "Venues" ) {
        sText = '<img src="/images/menu_images/sub_venues.gif"></img>';
    } else if ( texts[0] == "How_to_attend" ) {
        sText = '<img src="/images/menu_images/sub_how_to_attend.gif"></img>';
    }
    this.text = sText;
    this.url = sUrl;
    this.target = sTarget;

    this.parentMenu = oParent;

    function toString(bDingbat) {
        var sDingbat = bDingbat ? TransMenu.dingbatOff : TransMenu.spacerGif;
        var iEdgePadding = TransMenu.itemPadding + TransMenu.menuPadding;
        var sPaddingLeft = "padding:" + TransMenu.itemPadding + "px; padding-left:" + iEdgePadding + "px;";
        var sPaddingRight = "padding:" + TransMenu.itemPadding + "px; padding-right:" + iEdgePadding + "px;";

        var menustring = '<tr class="item">';
        if(TransMenu.sub_indicator&&((iDirection==TransMenu.direction.left)||(iDirection==TransMenu.direction.dleft))){
            menustring+='<td style="' + sPaddingRight + '">' +
                '<img src="' + sDingbat + '" ></td>';
        }
        menustring+= '<td nowrap style="' + sPaddingLeft + '" id="' + id + '">' +
            sText + '</td>';

        if(TransMenu.sub_indicator&&((iDirection==TransMenu.direction.down)||(iDirection==TransMenu.direction.right)||(iDirection==TransMenu.direction.up))){
            menustring+='<td style="' + sPaddingRight + '">' +
                '<img src="' + sDingbat + '" ></td>';
        }
        menustring+='</tr>';
        return menustring;

    }
}






//=====================================================================
// Accel[erated] [an]imation object
// change a property of an object over time in an accelerated fashion
//=====================================================================
// obj  : reference to the object whose property you'd like to animate
// prop : property you would like to change eg: "left"
// to   : final value of prop
// time : time the animation should take to run
// zip	: optional. specify the zippiness of the acceleration. pick a
//		  number between -1 and 1 where -1 is full decelerated, 1 is
//		  full accelerated, and 0 is linear (no acceleration). default
//		  is 0.
// unit	: optional. specify the units for use with prop. default is
//		  "px".
//=====================================================================
// bezier functions lifted from the lib_animation.js file in the
// 13th Parallel API. www.13thparallel.org
//=====================================================================

function Accelimation(from, to, time, zip) {
    if (typeof zip  == "undefined") zip  = 0;
    if (typeof unit == "undefined") unit = "px";

    this.x0         = from;
    this.x1		= to;
    this.dt		= time;
    this.zip	= -zip;
    this.unit	= unit;
    this.timer	= null;
    this.onend	= new Function();
    this.onframe    = new Function();
}



//=====================================================================
// public methods
//=====================================================================

// after you create an accelimation, you call this to start it-a runnin'
Accelimation.prototype.start = function() {
    this.t0 = new Date().getTime();
    this.t1 = this.t0 + this.dt;
    var dx	= this.x1 - this.x0;
    this.c1 = this.x0 + ((1 + this.zip) * dx / 3);
    this.c2 = this.x0 + ((2 + this.zip) * dx / 3);
    Accelimation._add(this);
};

// and if you need to stop it early for some reason...
Accelimation.prototype.stop = function() {
    Accelimation._remove(this);
};



//=====================================================================
// private methods
//=====================================================================

// paints one frame. gets called by Accelimation._paintAll.
Accelimation.prototype._paint = function(time) {
    if (time < this.t1) {
        var elapsed = time - this.t0;
        this.onframe(Accelimation._getBezier(elapsed/this.dt,this.x0,this.x1,this.c1,this.c2));
    }
    else this._end();
};

// ends the animation
Accelimation.prototype._end = function() {
    Accelimation._remove(this);
    this.onframe(this.x1);
    this.onend();
};




//=====================================================================
// static methods (all private)
//=====================================================================

// add a function to the list of ones to call periodically
Accelimation._add = function(o) {
    var index = this.instances.length;
    this.instances[index] = o;
    // if this is the first one, start the engine
    if (this.instances.length == 1) {
        this.timerID = window.setInterval("Accelimation._paintAll()", this.targetRes);
    }
};

// remove a function from the list
Accelimation._remove = function(o) {
    for (var i = 0; i < this.instances.length; i++) {
        if (o == this.instances[i]) {
            this.instances = this.instances.slice(0,i).concat( this.instances.slice(i+1) );
            break;
        }
    }
    // if that was the last one, stop the engine
    if (this.instances.length == 0) {
        window.clearInterval(this.timerID);
        this.timerID = null;
    }
};

// "engine" - call each function in the list every so often
Accelimation._paintAll = function() {
    var now = new Date().getTime();
    for (var i = 0; i < this.instances.length; i++) {
        this.instances[i]._paint(now);
    }
};


// Bezier functions:
Accelimation._B1 = function(t) { return t*t*t };
Accelimation._B2 = function(t) { return 3*t*t*(1-t) };
Accelimation._B3 = function(t) { return 3*t*(1-t)*(1-t) };
Accelimation._B4 = function(t) { return (1-t)*(1-t)*(1-t) };


//Finds the coordinates of a point at a certain stage through a bezier curve
Accelimation._getBezier = function(percent,startPos,endPos,control1,control2) {
    return endPos * this._B1(percent) + control2 * this._B2(percent) + control1 * this._B3(percent) + startPos * this._B4(percent);
};


//=====================================================================
// static properties
//=====================================================================

Accelimation.instances = [];
Accelimation.targetRes = 10;
Accelimation.timerID = null;


//=====================================================================
// IE win memory cleanup
//=====================================================================

if (window.attachEvent) {
    var cearElementProps = [
        'data',
        'onmouseover',
        'onmouseout',
        'onmousedown',
        'onmouseup',
        'ondblclick',
        'onclick',
        'onselectstart',
        'oncontextmenu'
            ];

    window.attachEvent("onunload", function() {
            var el;
            for(var d = document.all.length;d--;){
            el = document.all[d];
            for(var c = cearElementProps.length;c--;){
            el[cearElementProps[c]] = null;
            }
            }
            });
}

var WCH_Constructor = function() {
    //	exit point for anything but IE5.0+/Win
    if ( !(document.all && document.getElementById && !window.opera && navigator.userAgent.toLowerCase().indexOf("mac") == -1) ) {
        this.Apply = function() {};
        this.Discard = function() {};
        return;
    }

    //	private properties
    var _bIE55 = false;
    var _bIE6 = false;
    var _oRule = null;
    var _bSetup = true;
    var _oSelf = this;

    //	public: hides windowed controls
    this.Apply = function(vLayer, vContainer, bResize) {
        if (_bSetup) _Setup();

        if ( _bIE55 && (oIframe = _Hider(vLayer, vContainer, bResize)) ) {
            oIframe.style.visibility = "visible";
        } else if(_oRule != null) {
            _oRule.style.visibility = "hidden";
        }

    };

    //	public: shows windowed controls
    this.Discard = function(vLayer, vContainer) {
        if ( _bIE55 && (oIframe = _Hider(vLayer, vContainer, false)) ) {
            oIframe.style.visibility = "hidden";
        } else if(_oRule != null) {
            _oRule.style.visibility = "visible";
        }
    };

    //	private: returns iFrame reference for IE5.5+
    function _Hider(vLayer, vContainer, bResize) {
        var oLayer = _GetObj(vLayer);
        var oContainer = ( (oTmp = _GetObj(vContainer)) ? oTmp : document.getElementsByTagName("body")[0] );
        if (!oLayer || !oContainer) return;
        //	is it there already?
        var oIframe = document.getElementById("WCHhider" + oLayer.id);

        //	if not, create it
        if ( !oIframe ) {
            //	IE 6 has this property, IE 5 not. IE 5.5(even SP2) crashes when filter is applied, hence the check
            var sFilter = (_bIE6) ? "filter:progid:DXImageTransform.Microsoft.Alpha(style=0,opacity=0);" : "";
            //	get z-index of the object
            var zIndex = oLayer.style.zIndex;
            if ( zIndex == "" ) zIndex = oLayer.currentStyle.zIndex;
            zIndex = parseInt(zIndex);
            //	if no z-index, do nothing
            if ( isNaN(zIndex) ) return null;
            //	if z-index is below 2, do nothing (no room for Hider)
            if (zIndex < 2) return null;
            //	go one step below for Hider
            zIndex--;
            var sHiderID = "WCHhider" + oLayer.id;
            oContainer.insertAdjacentHTML("afterBegin", '<iframe class="WCHiframe" src="javascript:false;" id="' + sHiderID + '" scroll="no" frameborder="0" style="position:absolute;visibility:hidden;' + sFilter + 'border:0;top:0;left;0;width:0;height:0;background-color:#ccc;z-index:' + zIndex + ';"></iframe>');
            oIframe = document.getElementById(sHiderID);
            //	then do calculation
            _SetPos(oIframe, oLayer);
        } else if (bResize) {
            //	resize the iFrame if asked
            _SetPos(oIframe, oLayer);
        }
        return oIframe;
    };

    //	private: set size and position of the Hider
    function _SetPos(oIframe, oLayer) {
        //	fetch and set size
        oIframe.style.width = oLayer.offsetWidth + "px";
        oIframe.style.height = oLayer.offsetHeight + "px";
        //	move to specified position
        oIframe.style.left = oLayer.offsetLeft + "px";
        oIframe.style.top = oLayer.offsetTop + "px";
    };

    //	private: returns object reference
    function _GetObj(vObj) {
        var oObj = null;
        switch( typeof(vObj) ) {
            case "object":
                oObj = vObj;
            break;
            case "string":
                oObj = document.getElementById(vObj);
            break;
        }
        return oObj;
    };

    //	private: setup properties on first call to Apply
    function _Setup() {
        _bIE55 = (typeof(document.body.contentEditable) != "undefined");
        _bIE6 = (typeof(document.compatMode) != "undefined");

        if (!_bIE55) {
            if (document.styleSheets.length == 0)
                document.createStyleSheet();
            var oSheet = document.styleSheets[0];
            oSheet.addRule(".WCHhider", "visibility:visible");
            _oRule = oSheet.rules(oSheet.rules.length-1);
        }

        _bSetup = false;
    };
};
var WCH = new WCH_Constructor();