(function($){
	$(document).ready(function(){
		$('.mainMenu').mouseover(function(){
			$('.active',this).addClass('_active');
			$('.active',this).removeClass('active');
		});
		
		$('.mainMenu').mouseout(function(){
			$('._active',this).addClass('active');
			$('._active',this).removeClass('_active');
		});
		
		$('.treeNavigation li:not(.current, :has(.current)) ul').hide();
		$('div.treeNavigation').show();
	});
})(jQuery);