/*
    This is all it takes as far as js to get the nice, clean left nav.
*/
function showhidenav(obj)
{
    //show/hide childnodes
    var list = obj.parentNode.childNodes;
    var ishide = false;
    for (var i = 0; i < list.length; i++)
    {
        if (list[i].tagName != null && list[i].tagName.toLowerCase() == "ul")
        {
            if (list[i].className == "hide")
            {
                list[i].className = "";
                ishide = true;
            }
            else
                list[i].className = "hide";
        }
    }
    //change arrow
    if (obj.className == "up")
        obj.className = "down";
    else
        obj.className = "up";
}