function setSelectedNav() {
    var url = window.location.href;
    url = url.toLowerCase();
    var url_split = url.split("/");
    var page = url_split[(url_split.length - 1)];

    var topNavs = document.getElementById("topNavigation").getElementsByTagName("li");
    var leftNavs = document.getElementById("leftColumn").getElementsByTagName("li");

    setCurrent(topNavs,"top", page,url_split)
    setCurrent(leftNavs, "left", page, url_split);
}

function setCurrent(navs, type, page, url) {
    for (a = 0; a < navs.length; a++) {
        var link = navs[a].getElementsByTagName("a")[0]
        var href = link.href;
        href = href.toLowerCase();
        var link_split = href.split("/");
        var linkpage = link_split[(url.length - 1)];

        if (linkpage == page) {
            if (type == "top") {
                link.setAttribute("class", "current");
            }
            else if (type == "left") {
                link.setAttribute("class", "leftcurrent");
            }
        }      
    }

}