sfHover = function() {
	var sfEls = document.getElementById("nav").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {
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			this.className+=" sfHover";
		}
		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" sfHover\\b"), "");
		}
	}
}
if (window.attachEvent) window.attachEvent("onload", sfHover);