function initSubnav(){
	var subnav = document.getElementById('nav');
	var subnavas = subnav.getElementsByTagName('a');
	for (var a=0; a<subnavas.length; a++){
		var currenthref=String(subnavas[a].href);
		var currentloc=String(document.location);
		if (unescape(currenthref)==unescape(currentloc)){
			subnavas[a].className="current"
		}
	}
}

function addAnEvent(target, eventName, functionName){
	eval('target.on'+eventName+'=functionName');
}

function initPage(){
	if (document.getElementById){
		if (document.getElementById("nav")) initSubnav();
	}
}

window.onload=initPage;