function initGroup()
{
	var navRoot = document.getElementById("menu");
	if (navRoot) 
	{
		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 = "";
			}
		}
	}
}

if (window.attachEvent && !window.opera)
	attachEvent("onload", initGroup);