function addLoadEvent(func) {
  var oldonload = window.onload;
  if (typeof window.onload != 'function') {
    window.onload = func;
  } else {
    window.onload = function() {
      oldonload();
      func();
    }
  }
}

function insertAfter(newElement,targetElement) {
  var parent = targetElement.parentNode;
  if (parent.lastChild == targetElement) {
    parent.appendChild(newElement);
  } else {
    parent.insertBefore(newElement,targetElement.nextSibling);
  }
}

function addClass(element,value) {
  if (!element.className) {
    element.className = value;
  } else {
    newClassName = element.className;
    newClassName+= " ";
    newClassName+= value;
    element.className = newClassName;
  }
}

function highlightMainMenu() {
  /*highlight Parent Menu*/
var MainNav=document.getElementById("nav-one");
var MainLinks=MainNav.getElementsByTagName("a");
for (var i=0; i<MainLinks.length;i++) {
   var MainLinkurl=MainLinks[i].getAttribute("href");
    if (MainLinkurl=="./") {
    MainLinks[i].className="here"
 }
}
}
function highlightMenu() {
  if (!document.getElementsByTagName) return false;
  if (!document.getElementById) return false;
  if (!document.getElementById("nav-one")) return false;  
  if (!document.getElementById("left_menu")) return false;
  
  
  /*highlight Sub Menu*/
  
  var nav = document.getElementById("left_menu");
  var links = nav.getElementsByTagName("a");
  
  for (var i=0; i<links.length; i++) {
    var linkurl = links[i].getAttribute("href");
    var currenturl = window.location.href;
    if (currenturl.indexOf(linkurl) != -1) {
      links[i].className = "here";
    }
  }  
}

addLoadEvent(highlightMainMenu);
addLoadEvent(highlightMenu);