$(function() {
    // Nav drop down
    sfHover = function() {
        var sfEls = document.getElementById("primary-navigation").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);
    
    if ($.browser.opera) {
        $("#page").addClass("opera");
    }
});