sfHover = function() {
    if (document.getElementById("nav")) { 
        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);

sfHover = function() {
    if (document.getElementById("navAction")) {
        var sfEls = document.getElementById("navAction").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);