initNav = function() {

	if (document.all && document.getElementById) 

	{

		var navRoot = document.getElementById("top-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 (document.all && window.attachEvent)

	attachEvent("onload", initNav);