[jQuery] Slide Hover Menu

Hi , I have simple problem . Two Div's - one is named "#naviHover"
and second is holder for menu "#nav".
i have this script in document ready :

$("#nav").hide();
$('#naviHover').hover(

function() {

$("#nav").show().stop();
},

function() {
$("#nav").hide().stop();
}
);

Problem is that it jerks displays nav in fast ticks that are bad. Is
there a way to do that diferent ?
menu should be at bottom of page

not working example is here - http://404.bdl.pl/artcan/

please help . Im new to jQuery scripting .