2 State CSS Rolover Btn Single Image

#who-we-are_btn-2-state_button{
	position: absolute;
	width: 148px;
	height: 39px;
	margin: 35px 0 0 103px;
	display: block;
	overflow: hidden;
	}

#who-we-are_btn-2-state_button ul {
  	list-style: none;
  	margin: 0;
  	padding: 0;
  	}

#who-we-are_btn-2-state_button h3 {
	display: none;
  	}

#who-we-are_btn-2-state_button li a {
  	height: 39px;
	}

#who-we-are_btn-2-state_button li a:link, #who-we-are_btn-2-state_button li a:visited {
	color: #333;
	display: block;
	background:  url(images/who-we-are_btn-2-state.png);
	padding: 0;
	}

#who-we-are_btn-2-state_button li a:hover {
	background:  url(images/who-we-are_btn-2-state.png) 0 -39px;
	padding: 0;
	}