function initPage()
{
	var navRoot = document.getElementById("main-navigation");
	var lis = navRoot.getElementsByTagName("li");
	for (var i=0; i<lis.length; i++)
	{
		if (lis[i].parentNode.id == "main-navigation")
		{
			lis[i].onmouseover = function()
			{
				this.className += " hover";
			}
			lis[i].onmouseout = function()
			{
				this.className = this.className.replace("hover");
			}
		}
	}
}

if (document.all && window.attachEvent)
	attachEvent("onload", initPage);