http://eurokluc.sk/js/jquery.dropdown.js

1$(function(){
2
3    var config = {    
4         sensitivity: 3, // number = sensitivity threshold (must be 1 or higher)    
5         interval: 200,  // number = milliseconds for onMouseOver polling interval    
6         over: doOpen,   // function = onMouseOver callback (REQUIRED)    
7         timeout: 200,   // number = milliseconds delay before onMouseOut    
8         out: doClose    // function = onMouseOut callback (REQUIRED)    
9    };
10    
11    function doOpen() {
12        $(this).addClass("hover");
13        $('ul:first',this).css('visibility', 'visible');
14    }
15 
16    function doClose() {
17        $(this).removeClass("hover");
18        $('ul:first',this).css('visibility', 'hidden');
19    }
20
21    $("ul.dropdown li").hoverIntent(config);
22    
23    $("ul.dropdown li ul li:has(ul)").find("a:first").append(" » ");
24
25});