function initPage()
{
	var ul = document.getElementById("nav");
	if (ul)
	{
			var nodes = ul.getElementsByTagName("li");
			for (var i = 0; i < nodes.length; i++)
			{
				nodes[i].onmouseover = function () 
				{
					if (this.className.indexOf("hover" == -1))
					this.className += " hover";
				}
				nodes[i].onmouseout = function ()
				{
					this.className = this.className.replace("hover", "");
				}
			}
		}
}
if (window.attachEvent)
    window.attachEvent("onload", initPage);