var obj = null;

function checkHover() {
	if (obj) {
		obj.find('ul').fadeOut('fast');	
	} //if
} //checkHover

$(document).ready(function() {
	$('#Nav > li').hover(function() {
		if (obj) {
			obj.find('ul').slideUp('fast');
			obj = null;
		} //if
		
		$(this).find('ul').slideDown('fast');
	}, function() {
		obj = $(this);
		setTimeout(
			"checkHover()",
			0); // si vous souhaitez retarder la disparition, c'est ici
	});
});

var timeout    = 500;
	var closetimer = 0;
	var ddmenuitem = 0;
	
	function jsddm_open()
	{  jsddm_canceltimer();
	   jsddm_close();
	   ddmenuitem = $(this).find('ul').css('visibility', 'visible');}
	
	function jsddm_close()
	{  if(ddmenuitem) ddmenuitem.css('visibility', 'hidden');}
	
	function jsddm_timer()
	{  closetimer = window.setTimeout(jsddm_close, timeout);}
	
	function jsddm_canceltimer()
	{  if(closetimer)
	   {  window.clearTimeout(closetimer);
	      closetimer = null;}}
	
	$(document).ready(function()
	{  $('#jsddm > li').bind('mouseover', jsddm_open)
	   $('#jsddm > li').bind('mouseout',  jsddm_timer)});
	
	document.onclick = jsddm_close;