// If javascript is enabled, make the menu invisible until the proper mouseovers have been defined and give special styles to the submenus
if (document.getElementById && document.getElementsByTagName)
{
    document.write("<link type=\"text/css\" rel=\"stylesheet\" href=\"jsmenustyle.css\" />");
}


window.onload = init;

function init()
{
    if (document.getElementById && document.getElementsByTagName)
    {
        var myMenu = document.getElementById("menu").getElementsByTagName("A");
        if (!myMenu)
        {
            return;
        }
        else
        {
            for (var i=0;i<myMenu.length;i++)
            {
                myMenu[i].onmouseover = navHoverStyle;
                myMenu[i].onfocus = navHoverStyle;
            }
            document.getElementById("menu").style.visibility = "visible";
        }
    }
}


// Stores the currently open UL objects
var openMenus = new Array();

// Stores the timer for closing the menu
var navTimer;

function navHoverStyle(e)
{
    if (!e)
    {
        var e = window.event;
/*        alert("event")	*/

    }
    if (e.target)
    {
        var tg = e.target;
/*        alert("target")	*/
    }
    else if (e.srcElement)
    {
        var tg = e.srcElement;
/*        alert("srcElement")	*/

    }

    var linkElm = tg;
    while (linkElm.nodeName != 'A')
    {
/*        alert("linkElm.parentNode2")  */
        linkElm.parentNode;
    }

    while (tg.nodeName != 'LI')
    {
/*        alert("tg.nodeName != 'LI'")	*/
        tg = tg.parentNode;
    }

    // Determine if and if so, which submenu items to close
    var tgParent = tg.parentNode;
    while (tgParent.nodeName != 'UL')
    {
/*        alert("tgParent.nodeName != 'UL'")  */
        tgParent = tgParent.parentNode;
    }

    if (tgParent.id == 'menu')
    {
/*        alert("closing all")	*/
        closeAll(0);
    }
    else
    {
/*        alert("looping")	*/
        var j=0;
        while (openMenus[j] != tgParent)
        {
            j++;
        }
        closeAll(j+1);
    }

    // Determine if the current item has a submenu and if so, open it
    for ( var i=0; i<tg.childNodes.length; i++)
    {
/*        alert("has sub1")	*/
        if ( tg.childNodes[i].nodeName == 'UL')
        {
/*        alert("has sub2")	*/
            var subMenuElm = tg.childNodes[i];
        }
    }

    if (subMenuElm)
    {
/*        alert("subMenuElm")	*/
        linkElm.className = 'unfolded';
        subMenuElm.style.display = 'block';
        openMenus.push(subMenuElm);
    }

    // Set the timer
    checkNavTimer();

    return false;
}

function checkNavTimer()
{
    if (navTimer)
    {
        clearTimeout(navTimer);
    }
    navTimer = setTimeout('closeAll(0)',5000);
}

function closeAll(lvl)
{
    var oMl = openMenus.length-1;
    for ( var i=oMl; i>=lvl; i--)
    {
        var linkElm = openMenus[i].previousSibling;
        while (linkElm.nodeName != 'A' && linkElm.nodeName != 'img')
            linkElm = linkElm.previousSibling;

        linkElm.className = '';
        openMenus[i].style.display = 'none';
        openMenus.pop();
    }
}