.nav_box{
		width:747px;
		position:relative;
		left:1px;
		text-align:right;
		padding:0;
		margin:0 auto;
		background:url(../images/black.gif) bottom repeat-x;
	}
	
	
	.nav {
		position:relative;
		right:27px;
		display:block;
		width:auto;
		list-style:none;
		height:29px;
		margin:0;
		}

		.nav a { text-decoration:none; color:#FFF; font-size:15px;height:25px;display:block;padding-top:4px; background-repeat:no-repeat; margin-left:5px }
		.nav span { text-decoration:none; color:#666; font-size:15px;height:25px;display:block;padding-top:4px; margin-left:5px}
		
		.nav li {
			text-align:center;
			float:right;
			margin:0;
			padding:0;
			}
		
		.tab_long_off { background:url(../images/tab_long.gif) 0 0; width:124px;}
		.tab_long_off:hover { background-position: 0 -29px}
		.tab_long_on {background:url(../images/tab_long.gif) no-repeat 5px -58px; width:129px;}
		
		.tab_mid_off { background:url(../images/tab_mid.gif) 0 0; width:101px;}
		.tab_mid_off:hover { background-position: 0 -29px}
		.tab_mid_on {background:url(../images/tab_mid.gif) no-repeat 5px -58px; width:106px;}
		
				.tab_short_off { background:url(../images/tab_short.gif) 0 0; width:90px;}
		.tab_short_off:hover { background-position: 0 -29px}
		.tab_short_on {background:url(../images/tab_short.gif) 5px -58px no-repeat; width:95px;}