$(document).ready(function ()
{
	$("ul.menu_niveau2").css("display","none");
	$("ul.menu_niveau2").css("z-index","500");
	$("li.menu_conteneur h1").hover(function(){
			
	
			id = $(this).parent().attr('id');
			$("li#"+id+" ul.menu_niveau2").css("display","block");
		 },function(){
			id = $(this).parent().attr('id');
			
			$("li#"+id+" ul.menu_niveau2").css("display","none");
			
			$("li#"+id+" ul.menu_niveau2").hover(function(){
				   $(this).css("display","block");
				    $(this).css("z-index","500");
				 },function(){
				   $(this).css("display","none");
			});

			
	});	
});