function mainmenu(){
	$(" .nav ul ").css({display: "none"}); // Opera Fix
	$(" .nav li").hover(function(){
			$(this).find('ul:first').css({visibility: "visible",display: "none"}).show();
			},function(){
			$(this).find('ul:first').css({visibility: "hidden"});
			});

	//add Franck
	$('ul.nav li').mouseenter(function(){$(this).find('a').first().addClass('styleme')});
	$('ul.nav li').mouseleave(function(){$(this).find('a').first().removeClass('styleme')});

	$('ul.nav>li').addClass('fond_premier_niveau_non_select');

	$('ul.nav>li').mouseenter(function(){
		$(this).addClass('fond_premier_niveau_select');
		$(this).removeClass('fond_premier_niveau_non_select')
	});

	$('ul.nav>li').mouseleave(function(){
		$(this).removeClass('fond_premier_niveau_select')
		$(this).addClass('fond_premier_niveau_non_select');
	});
}



 $(document).ready(function(){
	mainmenu();
});