sfHover = function() {
                var sfEls = document.getElementById("main-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);
