function highlightPage() {
    if (!document.getElementsByTagName) {
        return false;
    }
    if (!document.getElementById) {
        return false;
    }
    if (!document.getElementById("nav")) {
        return false;
    }
    var nav = document.getElementById("nav");
    var links = nav.getElementsByTagName("a");
    var last = 0;
    for (var i = 0; i < links.length; i++) {
        var linkurl = links[i].getAttribute("href");
        var currenturl = document.location.href;
        if (currenturl.indexOf(linkurl) != -1) {
            last = i;
        }
    }
    links[last].className = "on";
    return true;
}
	window.onload=function (){
		highlightPage();
	}