function initPage()
{
	var navRoot = document.getElementById("horzizontal-menu");
	var lis = navRoot.getElementsByTagName("li");
	for (var i=0; i<lis.length; i++)
	{
		if ((lis[i].parentNode.id == "horzizontal-menu"))
		{
			lis[i].onmouseover = function()
			{
				var uls = this.getElementsByTagName("div");
				if (uls[0]) 
				{
					this.className = "hover bg";
				} else
				this.className = "hover";
			}
			lis[i].onmouseout = function()
			{
				this.className = "";
			}
		}
	}
}

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