function startList()
{
	var navRoot = document.getElementById("main-nav").getElementsByTagName("ul")[0];
	var node;
	var subNav;

	if ( navigator.appName == "Microsoft Internet Explorer" )
	{
		$$('#main-nav ul li').each( function(e) {
				e.onmouseover = onover;
				e.onmouseout  = onout;
		});
	}

	for ( i = 0; i < navRoot.childNodes.length; i++)
	{
		node = navRoot.childNodes[i];
		if ( node.nodeName == "LI" )
		{
			if ( node.className.indexOf("selected") == -1 )
			{
				subNav = node.getElementsByTagName("ul")[0];

				if ( subNav )
				{
					if ( subNav.parentNode.className != " selected" )
					{
						subNav.onmouseover = selected;
					}
					subNav.onmouseout  = unselected;
				}
			}
		}
	}
}

function onover()
{
	this.addClassName("over");
}

function onout()
{
	this.removeClassName("over");
}

function selected()
{
	this.parentNode.addClassName("selected");
}

function unselected()
{
	this.parentNode.removeClassName("selected");
}
addLoadEvent(startList);