$(function() {
	$('.box').mouseover(function() {
  		$(this).addClass("mouseover");
	});
	$('.box').mouseout(function() {
  		$(this).removeClass("mouseover");
	});
});

$(function() {
	$('.sub_nav2 .grid_3').mouseover(function() {
  		$(this).addClass("mouseover");
	});
	$('.sub_nav2 .grid_3').mouseout(function() {
  		$(this).removeClass("mouseover");
	});
});