function startList() 
{
	if(document.all && document.getElementById) 
	{
		var root = document.getElementById("nav");
		
		for (i=0; i<root.childNodes.length; i++) 
		{
			node = root.childNodes[i];
			
			if(node.nodeName == "LI") 
			{
				node.onmouseover = function() { this.className += " over"; }
				node.onmouseout = function() { this.className = this.className.replace(" over", ""); }
			}
		}
	}
}

window.onload=startList;