function initAccordion() 
{
	var nav = document.getElementById("nav");
	if(nav)
	{
		var active=0;
		var as = nav.getElementsByTagName("a");
		for (var i=0; i<as.length; i++)
		{
			if(as[i].className == "opener")
			{
				if(as[i].parentNode.className == "active")
				{
					break;
				}
				active++;
			}
		}
			
		var accordion = new Accordion('#nav .opener', '#nav ul ul', {
			display: active,
			alwaysHide: true,
			opacity: false,
			onActive: function(toggler, element) {
				parentelement = element;
				if(toggler.parentNode.className.indexOf("active") == -1) toggler.parentNode.className += ' active';
			},
			onBackground: function(toggler, element) {
				toggler.parentNode.className = toggler.parentNode.className.replace('active','');
			}
		});	
	}
}

initNav = function() {
	var navRoot = document.getElementById("nav");
	var lis = navRoot.getElementsByTagName("li");
	for (var i=0; i<lis.length; i++)
	{
		lis[i].onmouseover = function()
		{
			this.className += " hover";
		}
		lis[i].onmouseout = function()
		{
			this.className = this.className.replace("hover", "");
		}
	}
}

if (window.addEventListener)
	window.addEventListener("load", initAccordion, false);
else if (window.attachEvent)
{
	window.attachEvent("onload", initAccordion);
	window.attachEvent("onload", initNav);
}