http://api.jquery.com/

헛 감사합니다. 뭔가 힌트를 주신듯한데 제가 초보라서 쉿!하고 일단 찾아보고 공부해보겠습니다.

소스 보기하면 다 나오는데요 ;;
[code]
<!doctype html>
<html lang="ko">
<head>
<title>그누메뉴</title>
<meta charset="utf-8" />
<link rel="stylesheet" href="http://sir.co.kr/css/default.css?v=130429&vv=1.1">
<script src="http://sir.co.kr/js/jquery-1.8.3.min.js"></script>
</head>
<body >
<header>
<nav id='gnb'>
<ul id="gnb_ul">
<li id='gnb_was' class="gnb_1depth">
<a href='../main/g4s/' ><span></span>대메뉴</a>
<ul class="gnb_sub_ul">
<li class="gnb_2depth"><a href="#">소메뉴1-1</a></li>
</ul>
</li>
<li id='gnb_gnuboard' class="gnb_1depth">
<a href='#' >대메뉴2</a>
<ul class="gnb_sub_ul">
<li class="gnb_2depth"><a href="#">소메뉴2-1</a></li>
</ul>
</li>

</nav>
<script>
$(function(){
var hide_menu = false;
var mouse_event = false;
var oldX = oldY = 0;

$(document).mousemove(function(e) {
if(oldX == 0) {
oldX = e.pageX;
oldY = e.pageY;
}

if(oldX != e.pageX || oldY != e.pageY) {
mouse_event = true;
}
});

// 주메뉴
var $gnb = $(".gnb_1depth > a");
$gnb.mouseover(function() {
if(mouse_event) {
$(".gnb_1depth").removeClass("gnb_1depth_over gnb_1depth_over2 gnb_1depth_on");
$(this).parent().addClass("gnb_1depth_over gnb_1depth_on");
menu_rearrange($(this).parent());
hide_menu = false;
}
});

$gnb.mouseout(function() {
hide_menu = true;
});

$(".gnb_1depth li").mouseover(function() {
hide_menu = false;
});

$(".gnb_1depth li").mouseout(function() {
hide_menu = true;
});

$gnb.focusin(function() {
$(".gnb_1depth").removeClass("gnb_1depth_over gnb_1depth_over2 gnb_1depth_on");
$(this).parent().addClass("gnb_1depth_over gnb_1depth_on");
menu_rearrange($(this).parent());
hide_menu = false;
});

$gnb.focusout(function() {
hide_menu = true;
});

$(".gnb_1depth ul a").focusin(function() {
$(".gnb_1depth").removeClass("gnb_1depth_over gnb_1depth_over2 gnb_1depth_on");
var $gnb_li = $(this).closest(".gnb_1depth").addClass("gnb_1depth_over gnb_1depth_on");
menu_rearrange($(this).closest(".gnb_1depth"));
hide_menu = false;
});

$(".gnb_1depth ul a").focusout(function() {
hide_menu = true;
});

$('#gnb_ul>li').bind('mouseleave',function(){
submenu_hide();
});

$(document).bind('click focusin',function(){
if(hide_menu) {
submenu_hide();
}
});

function submenu_hide() {
$(".gnb_1depth").removeClass("gnb_1depth_over gnb_1depth_over2 gnb_1depth_on");
}
});

</script>

</body>
</html>

[/code]