// JavaScript Document

function addLoadEvent(func){
	var oldonload = window.onload;
	if (typeof window.onload != 'function'){
		window.onload = func;
		}else{
		window.onload = function(){
			oldonload();
			func();
		}
		}
	}
	
function insertAfer(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 activeLink(){
	if ( !document.getElementsByTagName || !document.getElementById || !document.getElementById("navigation") ) return false;
	var nav = document.getElementById("navigation");
	var links = nav.getElementsByTagName("a");
	for ( i = 0; i < links.length; i++ ){
		var linkurl = links[i].getAttribute("href");
		var currenturl = document.location.href;
		if (currenturl.indexOf(linkurl) != -1){
			links[i].className = "here";
			var linktext = links[i].lastChild.nodeValue.toLowerCase();
			document.body.setAttribute("id",linktext);
			}
		}
	}
addLoadEvent(activeLink);