#nav {
	margin: 0 auto;
	height: 40px;
	width: 734px;
	background-image: url(../img/nav_bg.gif);
	background-repeat: repeat-x;
	background-position: center top;
}
#nav ul {
	width: 734px;
	height: 40px;
	position:relative;
	background: url(../img/nav.gif) no-repeat center top;
}
#nav ul li { 
	list-style:none; 
	position:relative; 
	top:0;
}
#nav ul li	{
	list-style: none;
	position:absolute;
}
#nav ul li, #nav a {
	height: 40px; 
	display:block;
}
#nav ul li a {
	text-indent: -9999px; 
	text-decoration: none;
}
#op1 {left: 83px; width: 71px;}
#op2 {left: 154px; width: 96px;}
#op3 {left: 251px; width: 95px;}
#op4 {left: 346px; width: 187px;}
#op5 {left: 533px; width: 111px;}

#op1 a:hover {background: transparent url(../img/nav.gif) no-repeat 0 -40px;}
#op2 a:hover {background: transparent url(../img/nav.gif) no-repeat -71px -40px;}
#op3 a:hover {background: transparent url(../img/nav.gif) no-repeat -168px -40px;}
#op4 a:hover {background: transparent url(../img/nav.gif) no-repeat -263px -40px;}
#op5 a:hover {background: transparent url(../img/nav.gif) no-repeat -450px -40px;}

#op1 .current {background: transparent url(../img/nav.gif) no-repeat 0 -40px;}
#op2 .current {background: transparent url(../img/nav.gif) no-repeat -71px -40px;}
#op3 .current {background: transparent url(../img/nav.gif) no-repeat -168px -40px;}
#op4 .current {background: transparent url(../img/nav.gif) no-repeat -263px -40px;}
#op5 .current {background: transparent url(../img/nav.gif) no-repeat -450px -40px;}