// Enable rel="external" links
// JSTarget function by Roger Johansson, www.456bereastreet.com
var JSTarget = {
    init: function(att,val)
    {
        if (document.getElementById && document.createElement && document.appendChild)
        {
            var strAtt = ((typeof att == 'undefined') || (att == null)) ? 'class' : att;
            var strVal = ((typeof val == 'undefined') || (val == null)) ? 'non-html' : val;
            var oWarning;
            var arrLinks = document.getElementsByTagName('a');
            var oLink;
            var oRegExp = new RegExp("(^|\\s)" + strVal + "(\\s|$)");
            for (var i = 0; i < arrLinks.length; i++)
            {
                oLink = arrLinks[i];
                if ((strAtt == 'class') && (oRegExp.test(oLink.className)) || (oRegExp.test(oLink.getAttribute(strAtt))))
                {
                    oWarning = document.createElement("em");
                    oLink.appendChild(oWarning);
                    oLink.onclick = JSTarget.openWin;
                }
            }
            oWarning = null;
        }
    },
    openWin: function(e)
    {
        var event = (!e) ? window.event : e;
        if (event.shiftKey || event.altKey || event.ctrlKey || event.metaKey)
        {
            return true;
        }
        else
        {
            var oWin = window.open(this.getAttribute('href'), '_blank');
            if (oWin)
            {
                if (oWin.focus) oWin.focus();
                return false;
            }
            oWin = null;
            return true;
        }
    },
    // addEvent function from http://www.quirksmode.org/blog/archives/2005/10/_and_the_winner_1.html
    addEvent: function(obj, type, fn)
    {
        if (obj.addEventListener)
        {
            obj.addEventListener(type, fn, false);
        }
        else if (obj.attachEvent)
        {
            obj["e"+type+fn] = fn;
            obj[type+fn] = function() {obj["e"+type+fn]( window.event );}
            obj.attachEvent("on"+type, obj[type+fn]);
        }
    }
};
JSTarget.addEvent(window, 'load', function() {JSTarget.init("rel","external");});

// Hide the non-root lists
$('#sidebar ul.menu > li > ul').hide();

// Append an arrow beside each parent that has a child element
$('#sidebar ul.menu > li > ul').parent().find('a:first').after('<img class="arrow" src="/img/sidebar-blue-arrows.png" alt=">" />');

var toggleMenu = function ()
{
    var li = $(this).parent();
    if ($(li).find('ul:first').css('display') == 'none')
    {
        // SlideUp everything that isn't a parent of this item
        $('#sidebar ul.menu').not($(li).parents()).slideUp();

        $(li).find('ul:first').slideDown();
    }
    else
    {
        $(li).find('ul:first').slideUp();
    }
}

// Bind all parent ul's with the toggleMenu event
$('#sidebar ul.menu > li > ul').parent().find('img.arrow').bind('click', toggleMenu);

// Display the menu down to the level of the currently selected link
var currentPage = $('#sidebar ul.menu').find('.selected');
if (currentPage)
{
    $.each($(currentPage).parents('ul'), function () {
        $(this).show();
    });

    $(currentPage).find('a:first').addClass('hover');
    $.each($(currentPage).parents('li'), function () {
        $(this).find('a:first').addClass('hover');
    });
}

// Show the child links for the currently selected page, if any exist
$(currentPage).parent().find('ul:first').show();