$(document).ready(function() {
	$("#left_navi li").hover(
		function(){
			$(this).stop().animate({opacity: 0.4}, 50).css({borderRight: "5px solid #000000", borderLeft: "1px solid #000000"});
		},
		function(){
			$(this).stop().animate({opacity: 1}, 500).css({borderRight: "none", borderLeft: "none"});
	});
	
	$("#top_navi li").hover(
		function(){
			$(this).stop().animate({opacity: 0.4}, 50).css({borderBottom: "5px solid #000000", borderTop: "1px solid #000000"});
		},
		function(){
			$(this).stop().animate({opacity: 1}, 500).css({borderBottom: "none", borderTop: "none"});
	});
});