ul#nav { background:url(graphics/navigation.gif); position:relative; margin:0; }
ul#nav li { float:left; list-style-type:none; }
ul#nav li a {
	height:36px;
	display:block;
	position:absolute;
	top:-2px;
	outline:none;
}

ul#nav span {
display:none;
}

li#bthome a, li#btused_cars a, li#btwarranty a, li#btcontact a {background:url(graphics/navigation.gif) }

li#bthome a 						{
	background-position:0 0;
	width:209px;
	left:0
}
li#bthome a:hover					{ background-position:0 -36px }

li#btused_cars a 					{
	background-position:-209px 0;
	width:151px;
	left:209px
}
li#btused_cars a:hover				{ background-position:-209px -36px }


li#btwarranty a 					{
	background-position:-358px 0;
	width:188px;
	left:358px
}
li#btwarranty a:hover				{ background-position:-358px -36px }



li#btcontact a 						{
	background-position:-545px 0;
	width:254px;
	left:545px
}
li#btcontact a:hover				{ background-position:-545px -36px }