sfHover = function()

{

	var sfEls = document.getElementById("nav").getElementsByTagName("li");

	for (var i=0; i<sfEls.length; i++)

	{

		sfEls[i].onmouseover=function()

		{

			this.className+="sfhover";

		}

		sfEls[i].onmouseout=function()

		{

			this.className=this.className.replace(new RegExp("sfhover\\b"), "");

		}

	}

}

if (window.attachEvent) window.attachEvent("onload", sfHover);