// credit where credit is due: http://be.twixt.us/jquery/suckerFish.php
$(document).ready(function(){
$("#navPrimary li").hover(
function(){ $("ul", this).fadeIn("fast"); }, 
function() { } 
);
if (document.all) {
$("#navPrimary li").hoverClass ("sfHover");
}
});

$.fn.hoverClass = function(c) {
return this.each(function(){
$(this).hover( 
function() { $(this).addClass(c);  },
function() { $(this).removeClass(c); }
);
});
};