function initPage()
{
	var navRoot = document.getElementById("nav");
	if(navRoot) {
		var lis = navRoot.getElementsByTagName("a");
		for (var i=0; i<lis.length; i++)
		{
			lis[i].parentNode.className = "";
			lis[i].onclick = function () 
			{
				if (this.parentNode.className.indexOf("active-item") == -1) this.parentNode.className = "active-item"
				else this.parentNode.className = "";
			}
		}
	}
}

if (window.addEventListener) window.addEventListener("load", initPage, false);
else if (window.attachEvent) window.attachEvent("onload", initPage);