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"), "");
		    }
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